Abstract

In this study, an equivalent multi-body dynamics model of a rotary compressor for a household air-conditioner is established to predict its vibration responses when eccentric masses on the crankshaft, cyclic gas loads, torque ripple of the motor, connections with rubber washers, and the intake tube and exhaust tube are considered. Practical experiments for measuring the vibration acceleration of the compressor are conducted to validate the reliability and equivalence of the established model. The design of experiments method is employed to determine the optimal counterweights. This study determines the gas loads required to be considered in the counterweight design to attenuate the compressor vibration effectively. In addition, an optimal assembly angle for two counterweights is attained to reduce the compressor vibration.

摘要

在这项研究中，建立了家用空调旋转式压缩机的等效多体动力学模型，以预测曲轴上的偏心质量、循环气体负载、电机的扭矩脉动、与橡胶垫圈的连接、并考虑进气管和排气管。通过测量压缩机振动加速度的实际实验验证了所建立模型的可靠性和等效性。采用实验设计方法来确定最佳配重。这项研究确定了配重设计中需要考虑的气体载荷，以有效衰减压缩机振动。此外，还获得了两个配重的最佳装配角度，以减少压缩机振动。