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Study on Vibration Damping Characteristics of Triple Mass Flywheel Torsional Damper

SHI Wen-ku;MIN De-lei

2011, 31 (6): 76-80. DOI: 10.3969/j.issn.1006-1355-2011.06.017

Abstract （1546）

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Inspired by the structure of curved-spring double-mass-flywheel (DMF-CS), a new type of torsional damper, triple mass flywheel (TMF) damper, is introduced. As to the powertrain torsional vibration problem of a truck, the matching method for TMF’s parameters, including damping coefficient, torsional stiffness and rotational inertia, is discussed. And these parameters of the truck are obtained using this method. Based on these parameters, the damping performance of the TMF is compared with that of DMF-CS of the truck. The impact of TMF on the safety of the shaft system is analyzed. The results verify the effectiveness of the parameter matching method and show that the TMF has obvious superiority over DMF-CS in the aspects of vibration damping and shaft-system safety. Finally, the feasibility of TMF is discussed.

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《Optimal Design of Powertrain Mounting System Based on the Theory of Energy Decoupling》

SHEN Zhi-hong;GUO Fu-xiang;FANG De-guang;LIANG Tian-ye;SHI Wen-ku

2010, 30 (3): 35-37. DOI: 10.3969/j.issn.1006-1355.2010.03.010

Abstract （2319）

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A sixfreedom dynamic model of the powertrain mounting system of an IVECO minibus is established. Some relevant formulas are derived based on the theory of energy decoupling. The optimal design of the parameters of the powertrain mounting system is carried out. The result indicates that a reasonable selection of the parameters of the powertrain mounting system is beneficial for reducing engine vibration and increasing vehicles comfort performance.

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《Study on Identification Mothod of Inertia Parameter of Powertrain Rigid Body by Test 》

Long Yan;Shi Wen-ku;Lan Dian-dian;Liang Tian-ye

2009, 29 (1): 73-76. DOI: A

Abstract （1932）

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The accurate inertia parameters of powertrain rigid body is one of important prerequisites in the powertrain mounting system design. Based on the existing methodology ,a methodology of inertia parameter identification of the non-linear damping mounting system is introduced and validated.In this methodology,three mounts of the powertrain are used as mounting,and the inertia parameters of powertrain rigid body is gained by Frequency Response Function (FRF)。Based on the methodology,the influences of vehicle mounting system to the inertia parameters of powertrain rigid body is taken into account adequately.The feasibility and reliability of the methodology is proved by an instance.