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18 April 2018, Volume 38 Issue 2 Previous Issue    Next Issue

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Identification and Intelligent Suppression of Vehicle Chaos under Speed Bump and Engine Combined Excitation 2018, 38(2): 1-5.  DOI: 10.3969/j.issn.1006-1355.2018.02.001 Abstract ( )   PDF (1490KB) ( )   Related Articles | Metrics

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Study on Calculation Method of Dynamic Friction Coefficient between the Sheets of a Less-sheet Leaf Spring 2018, 38(2): 6-10.  DOI: 10.3969/j.issn.1006-1355.2018.02.002 Abstract ( )   PDF (1343KB) ( )   In order to study the dynamic friction characteristics of the leaf spring, a method for calculating the dynamic friction coefficient between the spring sheets is proposed. Firstly, according to the deformation kinematic characteristics of the leaf spring, the relationship between the dynamic friction coefficient and the static friction coefficient of the spring is deduced.Then, based on the mechanics method and energy method, the static friction coefficient calculation model of the plate spring is established. According to the principle of friction work, the calculation method of static friction coefficient of plate spring is obtained.Finally, according to the relationship between the dynamic and static friction coefficient of the steel plate spring, the calculation method of the friction coefficient between the spring pieces is deduced.The calculated results show that the calculated values of the friction coefficient are in good agreement with the values in the actual working conditions.Taking the actual leaf spring of an enterprise as an example, the above calculation model is verified experimentally. Related Articles | Metrics

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Study on the Dynamic Characteristics of Nonlinear Vibration Isolation Systems with Feedback Control 2018, 38(2): 11-17.  DOI: 10.3969/j.issn.1006-1355.2018.02.003 Abstract ( )   PDF (1990KB) ( )   Related Articles | Metrics

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Analysis of Free Vibration of Rotating Tapered Beams using Dynamic Stiffness Method 2018, 38(2): 18-21.  DOI: 10.3969/j.issn.1006-1355.2018.02.004 Abstract ( )   PDF (1276KB) ( )   The dynamic stiffness method is imposed to analyse the vibration problem for rotating tapered beams. Based on Euler-Bernoulli beam theory, the governing equation of free vibration of a rotating tapered beam is derived. Then the dynamic stiffness matrix is developed by using the dynamic stiffness method. Finally, the natural frequencies and corresponding mode shapes of the beam are obtained by using fzero function of MATLAB. The accuracy and effectiveness of the proposed method are verified by numerical calculations. Furthermore, the effect of the hub radius, rotating speed and taper ratio on natural frequency are discussed in detail. Related Articles | Metrics

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Simulation Analysis of the Excitation Mechanism of Picking Machines based on ADAMS 2018, 38(2): 22-24.  DOI: 10.3969/j.issn.1006-1355.2018.02.005 Abstract ( )   PDF (1312KB) ( )   Related Articles | Metrics

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Research of Hysteresis Compensation Modeling of PZT Patches and Active Vibration Control of Cantilever Beams 2018, 38(2): 25-29.  DOI: 10.3969/j.issn.1006-1355.2018.02.006 Abstract ( )   PDF (1847KB) ( )   In order to improve the vibration control effects of the piezoelectric cantilever beam, an inverse hysteresis compensation controlling method based on least squares algorithm was presented. The displacements of the lead zirconate titanate (PZT) patch under different voltages were measured, and the experimental hysteresis loop model of the PZT patch was fitted with the polynomial via least squares algorithm. Using the inverse hysteretic compensation model of the PZT patch, the control voltage was compensated. Through the active vibration control experiments of piezoelectric cantilever beam, the control effects of the PID controller with or without inverse hysteresis compensation were systematically studied. The results showed that the active control effects of PID controller with inverse hysteresis compensation, was 10.083% better than the traditional PID controller. Thus, the inverse hysteresis compensation method can effectively improve the active control effects of PZT patch, which is of great reference value for active vibration control of piezoelectric cantilever beam. Related Articles | Metrics

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Lag-compensation PID Control for a Flexible Structure with Piezoelectric Stack Actuators 2018, 38(2): 30-35.  DOI: 10.3969/j.issn.1006-1355.2018.02.007 Abstract ( )   PDF (1934KB) ( )   This paper exploits piezoelectric stack actuator and PID controller to suppress the vibration of the flexible beam in the presence of multi-frequency excitations. Meanwhile, the phase-lag compensator and frequency division method are applied to solve the issues of phase-lag and multi-frequency excitation for the flexible beam, respectively. First of all, the modal frequencies and shapes of the flexible beam are obtained by FEA method and verified by experimental test. Moreover, the relationship between the excitation frequency and the phase-lag is identified by experiments. Then, the active frequency-division-based PID controller with the phase compensator is designed to attenuate multi-frequency vibrations of the flexible beam. Finally, we investigate the performance of the proposed controller and specifically, the acceleration responses of the controlled beam under multi-frequency excitation are evaluated. The maximum attenuation of acceleration root mean square (RMS) is almost 45%, which indicates that the designed PID controller is effective. Related Articles | Metrics

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Complex Modes and Sound Radiation Properties of Inhomogeneous Damping Plates 2018, 38(2): 36-41.  DOI: 10.3969/j.issn.1006-1355.2018.02.008 Abstract ( )   PDF (1841KB) ( )   Related Articles | Metrics

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Hybrid Calculation Method for Normal Absorption Coefficient  of Foam Material under Air Backing 2018, 38(2): 42-44.  DOI: 10.3969/j.issn.1006-1355.2018.02.009 Abstract ( )   PDF (1087KB) ( )   Considered the air backing as a layer of material, and got the acoustic transfer matrix of air by theoretical calculation, combined with acoustic transfer matrix of materials that obtained from experimental measurement, constructed the hybrid model of experiment and calculation, thus the total transfer matrix of air backing composite material was obtained, and normal absorption coefficient of foam material under air backing was calculated. Took the polyethylene foam as an example, the influence of different air backing thickness on the sound absorption coefficient of the foam material was studied. By comparing the calculated results with the corresponding experimental results in the impedance tube, concluded that the results from the two methods were basically consistent. With the increase of air backing thickness, the sound absorption performance of the foam material was improved, and the effective sound absorption range moved to the low frequency region. The hybrid calculation method has provided a convenient and effective means for the study of the normal sound absorption coefficient of foam materials under air backing. Related Articles | Metrics

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Dynamic Modeling of Flexible Manipulators Considering the Characteristics of Motor Winding 2018, 38(2): 45-49.  DOI: 10.3969/j.issn.1006-1355.2018.02.010 Abstract ( )   PDF (1312KB) ( )   In this paper, the dynamics of flexible manipulators is modeled by flexible body dynamics. This paper introduces the dissipative description between bearings and viscous damping, the equivalent deformation description of joint flexible joint, using modal assumption method to describe the flexible link, the motor winding motor drive and torque characteristics describe the dynamics equation was established by Lagrange equation. This paper carries on the simulation to solve the model, calculate the deformation at the end of the connecting rod of different transmission ratio and the additional weight centroid, comparative analysis to obtain the relationship between the connecting rod end deformation and the transmission ratio and the additional weight centroid. This provides a theoretical basis for the design optimization of the mechanical arm in the later stage. Related Articles | Metrics

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Research on Sound Insulation Characteristics of Composite Structure with Melamine Core 2018, 38(2): 50-54.  DOI: 10.3969/j.issn.1006-1355.2018.02.011 Abstract ( )   PDF (1420KB) ( )   Related Articles | Metrics

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Design of Flexible Deck Simulators and Their Applications in Shock Resistance Tests zhang baogang 2018, 38(2): 55-58.  DOI: 10.3969/j.issn.1006-1355.2018.02.01 Abstract ( )   PDF (1812KB) ( )   Shock resistance for facilities on warships is of great importance to their safety and reliability. In order to simulate the shock environment where the facilities are installed, flexible deck simulator is put out and the corresponding principles and designing process are indicated. In shock test for a on board facility, a flexible deck simulator is designed and used to simulate the shock loads. It is concluded from the testing results that the shock environment where the facility is installed is well simulated by using the simulator, which indicates that the necessity of the usage of flexible deck simulator in shock test. Related Articles | Metrics

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Experimental Study on the Influences of Oil Quantity and Inclination Angle on Oil Film Noise 2018, 38(2): 59-64.  DOI: 10.3969/j.issn.1006-1355.2018.02.013 Abstract ( )   PDF (1826KB) ( )   A parallel-plate squeeze film test apparatus was built to study the noise in main bearing of engine, which was as irregular as type-writing sound. The test apparatus could simulate the dynamic loading effect to conduct the film noise. After realizing synchronous acquisition of displacement signal, sound signal and images, the irregular noise was studied in the experiment. Through the observation and comparison of a series of oil film cavitation images and combined with the timing analysis of the measured signals, the irregular noise occurred when lateral side of cavitation connected with the outside atmosphere. And according to the conclusion, the influence of the quantity of oil and inclination angle of upper plate on the irregular noise was studied. The test results show that oil film noise is more likely to occur when quantity of oil and angle of inclination increase. Related Articles | Metrics

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Transfer Path Analysis of Bus Steering Wheel Vibration in    Idle Condition based on Mount Stiffness Method 2018, 38(2): 65-70.  DOI: 10.3969/j.issn.1006-1355.2018.02.014 Abstract ( )   PDF (2117KB) ( )   Related Articles | Metrics

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Analysis and Control of Low-Frequency Shudder of Vehicle’s Bodies under the Second Order Excitation of Drivelines 2018, 38(2): 71-76.  DOI: 10.3969/j.issn.1006-1355.2018.02.015 Abstract ( )   PDF (1850KB) ( )   As to driveline used two piece driveline connected by universal joint (cardan joint), second driveline order shudder occurs when vehicle launches in low gear and wide open throttle. Based secondary couple theory of single universal joint, the formulas for secondary couple calculation of two piece driveline (including multiple joint) is deduced. Then the mechanism of launch shudder is analysed based on vibration order characteristics, peak amplitude relationship between driveline and body, powertrain modal data, demonstrating that excitation source of the shudder is the secondary couple produced by universal joint. Combining subjective rating with objective data, the target of shudder is set with a measurable indicator. The influence on shudder of driveline phase, driveline torque, driveline static angle, center bearing stiffness, powerplant rear mount stiffness is theoretically analysed and experimentally proved, which provides effective measures for optimization of launch shudder. Finally, by reasonably taking optimization measures, launch shudder of a vehicle is optimized from highly severe level to acceptable level under kerb mass and gross mass. Related Articles | Metrics

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Study on the Control of MPV Interior Booming Induced by Torsional Vibration of Driveline Systems 2018, 38(2): 77-82.  DOI: 10.3969/j.issn.1006-1355.2018.02.016 Abstract ( )   PDF (2300KB) ( )   Related Articles | Metrics

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ibration and Noise Suppression of Tractor Cabs  based on Modal Strain Energy 2018, 38(2): 83-86.  DOI: 10.3969/j.issn.1006-1355.2018.02.017 Abstract ( )   PDF (1823KB) ( )   The suppression of structure noise in tractor cab is studied. The problem of abnormal vibration of the cab plate is analyzed through the modal strain energy. To determine the problem plate and optimize the topography of it, the contribution of the panel is calculated. The numerical and experimental analysis demonstrate that, the proposed method is more suitable for identifying the abnormal vibration in the tractor cab compared to the individually classical modal analysis. In which, the main vibration panel can be recognized effectively with less computational objective and more precise identification. Related Articles | Metrics

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Investigation on the Influence of Inter-car Windshield Types on the Aerodynamic Noise of High Speed Trains 2018, 38(2): 87-90.  DOI: 10.3969/j.issn.1006-1355.2018.02.018 Abstract ( )   PDF (1472KB) ( )   Related Articles | Metrics

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Comparative Test Study on Influence of Rail Vibration Damping Fasteners on Train Stability 2018, 38(2): 91-95.  DOI: 10.3969/j.issn.1006-1355.2018.02.019 Abstract ( )   PDF (1676KB) ( )   To study the influence of GH-1 rail vibration damping fastener on train stability, a train stability test was carried out. The lateral and vertical vibration accelerations of the bogie and carriage were measured and compared during the train passed the track area with different damping fastener. The safety and stability indexes of the train in operation were analyzed according to the current standards. It is concluded that the train safety and stability can meet the standard when passing through the GH-1 rail vibration damping fastener area, and that the vibration accelerations of the bogie and carriage are smaller than that with DT fastener, showing better stability. The conclusion is meaningful for the designing and safety application of the new damping fastener. Related Articles | Metrics

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Study on Aerodynamic Noise Optimization Control of Auxiliary Converters for Metro Vehicles 2018, 38(2): 96-101.  DOI: 10.3969/j.issn.1006-1355.2018.02.020 Abstract ( )   PDF (2031KB) ( )   Focused on the excessive noise of the metro vehicle auxiliary converter, the numerical simulation method of the aerodynamic noise source and the propagation was adapted to analyze the aerodynamic noise characteristics of auxiliary converter. On this basis, it was proposed to add the rectification net, resonant cavity, and increase the number of blades. By comparing the results between the optimization schemes and the original model, it is found that the total sound pressure level of the outlet measuring point decreased by 2.5 dB(A) after adding rectification net, and decreased by 2.5 dB(A) when the number of the blade increases from six to seven. After adding the resonant cavity, the total sound pressure level of the outlet measuring point decreased by 0.5 dB(A). When these optimization programs are combined, the sound pressure level of the entire frequency band reduces obviously and the total sound pressure level of the outlet measuring point is reduced by 7.1dB(A). It can provide a reference for the low noise converter design and development. Related Articles | Metrics

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Study on the Transmission Characteristics of Propellers under Unsteady Excitation 2018, 38(2): 102-107.  DOI: 10.3969/j.issn.1006-1355.2018.02.021 Abstract ( )   PDF (2876KB) ( )   Related Articles | Metrics

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Analysis of Noise Characteristics of Outdoor Acoustic Environment for Existing Residential Buildings along Urban Traffic Lines 2018, 38(2): 108-112.  DOI: 10.3969/j.issn.1006-1355.2018.02.022 Abstract ( )   PDF (1630KB) ( )   The noise level and the noise spectrum of the outdoor acoustic environment of the residential buildings near the urban traffic were monitored and the noise characteristics were analyzed, which could provide theoretical support for the acoustic noise reduction design of the residential buildings. According to the results, the spectrum characteristics of the combined overhead road traffic noise, the rail traffic noise and the aircraft noise were basically the same, which indicated that the acoustic noise reduction technology which was applicable to the existing residential buildings along these categories of the urban traffic could be used interchangeably. Related Articles | Metrics

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Analysis of Characteristics of Ground Vibration Induced by Modern Tramcars 2018, 38(2): 113-119.  DOI: 10.3969/j.issn.1006-1355.2018.02.023 Abstract ( )   PDF (2262KB) ( )   Related Articles | Metrics

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Study on Vibration Response of Station Structures under Subway Excitation 2018, 38(2): 120-126.  DOI: 10.3969/j.issn.1006-1355.2018.02.024 Abstract ( )   PDF (2068KB) ( )   Related Articles | Metrics

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Analysis of Vibration Characteristics of Piles with Top Fixed and Part Embedded in a Viscoelastic Foundation 2018, 38(2): 127-132.  DOI: 10.3969/j.issn.1006-1355.2018.02.025 Abstract ( )   PDF (1341KB) ( )   Extending the reverberation-ray matrix method analysis to the vibration of pile foundation, Based on the Winkler foundation model of Timoshenko beam theory,the vibration characteristics of pile with top fixed and part embedded in elastic foundation were solved by the reverberation-ray matrix method and the root method,the calculation result were compared with SAP2000,it shows that the effectiveness and accuracy of the vibration characteristics of the buried structure were solved by the reverberation-ray matrix method.Meanwhile,the influence of soil spring coefficient and soil damping coefficient on the natural frequency and mode of pile with top fixed and part embedded in viscoelastic foundation was analyzed, the results show that when the soil spring coefficient increases, the natural frequency of the embedded structures increases, the soil spring coefficient has no effect on attenuation coefficient,and the influence of embedded structure mode is small. when the soil damping coefficient decreases, the natural frequency of the embedded structures increases, the attenuation coefficient of the embedded structures decreases, and the influence of the embedded structures on the low-order modes is especially obvious, and the influence on the high-order modes is small. Related Articles | Metrics

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Analysis of Dynamic Displacement Response of  Bridges under Vehicle’s Impact 2018, 38(2): 133-137.  DOI: 10.3969/j.issn.1006-1355.2018.02.026 Abstract ( )   PDF (1292KB) ( )   Related Articles | Metrics

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Fault Diagnosis Method of Rotating Machinery based on the Kernel Extreme Learning Machine 2018, 38(2): 138-143.  DOI: 10.3969/j.issn.1006-1355.2018.02.027 Abstract ( )   PDF (1686KB) ( )   Related Articles | Metrics

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Application of CEEMDAN Combined with LMS Algorithm in Signal De-noising of Bearings 2018, 38(2): 144-149.  DOI: 10.3969/j.issn.1006-1355.2018.02.028 Abstract ( )   PDF (1871KB) ( )   For the problem of extracting useful signals in strong noise background，a new algorithm is developed based on the Complete Ensemnle Empirical Mode Decomposition with adaptive noise (CEEMDAN) and least mean square algorithm (LMS) . Firstly，the signal is decomposed by CEEMDAN，and the signal is decomposed into several intrinsic mode function (IMF)，then use LMS to reduce the noise of each component，and finally to refactor the denoised components. The simulation results show that this method can eliminate most of the noise and interference signals，and is easy to implement. Eventually this approach applied to the bearing fault diagnosis of vibration sieves，verify the feasibility of the method. Related Articles | Metrics

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A Fault Diagnosis Method for Rolling Bearings based on Adaptive Extraction of Effective Signals 2018, 38(2): 150-153.  DOI: 10.3969/j.issn.1006-1355.2018.02.029 Abstract ( )   PDF (1507KB) ( )   Related Articles | Metrics

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Application of MCKD and RSSD in Early Fault Diagnosis of Rolling Bearings 2018, 38(2): 154-161.  DOI: 10.3969/j.issn.1006-1355.2018.02.030 Abstract ( )   PDF (2213KB) ( )   Related Articles | Metrics

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Intelligent Diagnosis Method for Rolling Bearings using Approximate Entropy and LCD-KELM 2018, 38(2): 162-167.  DOI: 10.3969/j.issn.1006-1355.2018.02.031 Abstract ( )   PDF (1776KB) ( )   While in the background of strong noise, it is difficult to extract the non-stationary nonlinear signal feature of rolling bearing. Therefore, this paper proposes a method based on Local Characteristic-scale Decomposition (LCD) and Kernel Extreme Learning Machine (KELM) intelligent diagnostic method (LCD_KELM). Firstly, the measured vibration signals are processed with LCD and decomposes into a series of intrinsic scale component (ISC). Then a number of ISCs containing valid information components are selected out and then compute their ApEns. Using KELM to train randomly selected ApEns. Using the remaining ApEns to test after saving the training parameters and the experimental results show that LCD_KELM has a high diagnostic accuracy, it can accurately diagnosis of rolling bearing operating status to determine the running state of the rolling bearing. Related Articles | Metrics

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Rotating Machinery Fault Diagnosis based on EMD Energy Ratio and GA-BP Network 2018, 38(2): 168-172.  DOI: 10.3969/j.issn.1006-1355.2018.02.032 Abstract ( )   PDF (1327KB) ( )   Related Articles | Metrics

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Improved Algorithm for Speech Pitch Detection Combined with EMD and DWT-ACF 2018, 38(2): 173-178.  DOI: 10.3969/j.issn.1006-1355.2018.02.033 Abstract ( )   PDF (1624KB) ( )   Aiming at the deviation or omission that traditional discrete wavelet transform-autocorrelation function algorithm calculated the pitch under the Low SNR circumstances, this paper proposes an improved algorithm based on Empirical Mode Decomposition (EMD) and Discrete Wavelet Transform-AutoCorrelation Function (DWT-ACF). The algorithm firstly uses the Empirical Mode Decomposition (EMD) process to remove the noisy speech trend items and noise reduction, and then uses the improved Discrete Wavelet Transform-AutoCorrelation Function(DWT-ACF) to highlight the peak value of each pitch period, which improves the accuracy of pitch period detection. The experimental results show that the improved method can effectively improve the frequency doubling and half frequency errors of noisy speech in pitch extraction, and the situation of the deviation or omission, as well as the speed and accuracy of pitch detection is improved. Related Articles | Metrics

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Identification of Bouc-Wen Nonlinear Restoring Force and Mass of Structures with Limited Acceleration 2018, 38(2): 179-187.  DOI: 10.3969/j.issn.1006-1355.2018.02.034 Abstract ( )   PDF (2765KB) ( )   Related Articles | Metrics

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Feature Extraction and Classification of Acoustic Signals of Drones 2018, 38(2): 188-192.  DOI: 10.3969/j.issn.1006-1355.2018.02.035 Abstract ( )   PDF (1705KB) ( )   Related Articles | Metrics

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Fault Diagnosis Method of Gears based on LCD and Energy Difference Spectrum of Singular Values 2018, 38(2): 193-197.  DOI: 10.3969/j.issn.1006-1355.2018.02.036 Abstract ( )   PDF (1892KB) ( )   Related Articles | Metrics

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EMD and Wavelet Threshold Denoising Method of Gear-shift Acceleration Signals 2018, 38(2): 198-203.  DOI: 10.3969/j.issn.1006-1355.2018.02.037 Abstract ( )   PDF (1763KB) ( )   As the noise in the acceleration signal of the acquired shift condition has a great influence on the accuracy and complexity of the excavation of the shift quality evaluation index, a signal denoising method was proposed based on Empirical Mode Decomposition (EMD) and Wavelet Threshold. Firstly, EMD was used to decompose the original noisy signal into finite Intrinsic mode function (imf) components. Secondly, the high frequency components were denoised by wavelet threshold. Then the high frequency denoising components and low frequency components were reconstructed by EMD to obtain the denoising signal. Finally, the acceleration signal of a certain shift condition was subjected to denoising test. The test results show that compared with the traditional EMD denoising and wavelet threshold denoising, the denoising method based on EMD and wavelet threshold can better preserve the original signal characteristic form and the denoising effect is more obvious. This method provides a feasible idea for the denoising of the shift acceleration signal, which lays foundations for the subsequent drviability evaluation. Related Articles | Metrics

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Dynamics Research of Isolation Platforms based on Udwadia-Kalaba Theory 2018, 38(2): 204-207.  DOI: 10.3969/j.issn.1006-1355.2018.02.038 Abstract ( )   PDF (1490KB) ( )   In view of the micro manufacturing platform, the problem of isolation based on Udwadia-Kalaba theory to establish the dynamics model of vibration isolation platform, and study its dynamic characteristics under pedestrian excitation. The dynamic model of Udwadia - Kalaba was established for the two structures, and the various particle response curves of solid and dispersed structure were obtained by Matlab simulation. The result of research shows that a dynamic model based on the Udwadia - Kalaba theory can be solved without introducing Lagrange multipliers;Solid structure and decentralized structure even the response curve of the contrast, it is known that the solid even structure relative to the dispersed structure model can achieve good damping effect, and the theoretical method can better applied to the micro vibration isolation platform vibration dynamics to solve the manufacturing aspect. Related Articles | Metrics

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Analysis of Shock Response Accelerations of Metal-net Rubber Vibration Isolators 2018, 38(2): 208-211.  DOI: 10.3969/j.issn.1006-1355.2018.02.039 Abstract ( )   PDF (1620KB) ( )   Related Articles | Metrics

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Development of New Subway Vibration Reduction Fasteners based on Impedance Mismatching Principle 2018, 38(2): 212-214.  DOI: 10.3969/j.issn.1006-1355.2018.02.040 Abstract ( )   PDF (1498KB) ( )   Related Articles | Metrics

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Research and Simulation Analysis of the Combined Stiffness of the Metallic Rubber 2018, 38(2): 215-220.  DOI: 10.3969/j.issn.1006-1355.2018.02.041 Abstract ( )   PDF (1965KB) ( )   Related Articles | Metrics

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Design and Test of Damping Devices with Vibration Isolation and Vibration Absorption Functions 2018, 38(2): 221-224.  DOI: 10.3969/j.issn.1006-1355.2018.02.042 Abstract ( )   PDF (1242KB) ( )   Related Articles | Metrics

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Research on a Kind of Rubber Isolators with  Quasi-zero Stiffness 2018, 38(2): 225-232.  DOI: 10.3969/j.issn.1006-1355.2018.02.043 Abstract ( )   PDF (1668KB) ( )   Related Articles | Metrics

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Uncertainty of Sound Insulation Measurement of Buildings and its Application in Sound Reduction Grading Cai Yang-Sheng 2018, 38(2): 233-238.  DOI: 10.3969/j.issn.1006-1355.2018.02.044 Abstract ( )   PDF (1479KB) ( )   Related Articles | Metrics

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Research of New Ship Vibration Standard of ISO 20283-5 2018, 38(2): 239-246.  DOI: 10.3969/j.issn.1006-1355.2018.02.045 Abstract ( )   PDF (1064KB) ( )   The shipbuilding enterprises of our country do not pay enough attention to vibration control now, although the ship vibration standard is getting higher. In December 2016, the new vibration standard was formulated. This new standard poses a significant challenge to shipbuilding capability and has a great impact on shipbuilding enterprises in our country. In this paper, the new vibration standard ISO 20283-5:2016(E) is compared to old vibration standard ISO 6954:2000(E). The differences between these two standards are investigated. In addition, the trial results of the vehicle are evaluated based on new and old standard, respectively. The results indicate that the shipbuilding capability of our country cannot meet the new vibration standard. The ship designers and builders still need to study the new vibration standard in order to improve the shipbuilding capability of our country and make our country become world-leading shipbuilding power. Related Articles | Metrics