关键词: 振动与波, 空调管路, 模态分析, 固有频率, 减振, Ansys

Abstract:

Aiming at vibration problem on air-conditioner pipeline，HyperMesh is applied to divide the designed air-conditioner pipeline model into high quality hexahedral mesh. Then, the model is imported into ANSYS to carry out modal analysis, and the natural frequencies and modes of the first 10 orders are calculated. It is found that the first order natural frequency is near the operating frequency, the vibration mode of the natural frequency is analyzed and the design scheme is put forward to improve the pipeline system, which makes the natural frequency of the air conditioning pipeline system far away from the operating frequency and avoid the resonance. Finally, the experiment is carried out with the improved structure，and it is found that the amplitude of the vibration of improved structure has been reduced by 90%. Practice shows that the application of ANSYS and other finite element technology efficiently improves the efficiency and accuracy in the process of vibration reduction of air conditioner.