基于压力波动的机油泵NVH问题研究
Vibrationand Noise Analysisof Oil Pump Based on Pressure Fluctuation
机油泵是发动机润滑系统核心零部件，由于高速转动产生较为剧烈的振动从而可能引发噪声。针对发动机转子式机油泵阶次噪声问题，利用试验及仿真分析手段，确定机油泵阶次噪声是由于机油压力波动导致。通过调整机油泵转子齿数，机油压力波动显著降低，阶次噪声消除。
Oil pump is the core component of engine lubrication system. And because of the high speed rotation, it may generate more severe vibration and bring noise. In order to solve the problem of order noise of the engine rotor oil pump, the causes of order noise of the engine oil pump are determined by means of simulation and experimentalanalysis, it is determined that the order noise of oil pump is caused by the fluctuation of oil pressure.By adjusting the number of rotor teeth of the oil pump, the oil pressure fluctuation is significantly reduced and the order noise is eliminated.
施发义;欧阳丹;丁伟;刘成;唐元媛;刘向晖;熊迪;向飞;单文强;向高;张文响;郝少华;
东风汽车集团股份有限公司技术中心,武汉430000;东风汽车集团股份有限公司技术中心,武汉430000;东风汽车集团股份有限公司技术中心,武汉430000;东风汽车集团股份有限公司技术中心,武汉430000;东风汽车集团股份有限公司技术中心,武汉430000;东风汽车集团股份有限公司技术中心,武汉430000;东风汽车集团股份有限公司技术中心,武汉430000;东风汽车集团股份有限公司技术中心,武汉430000;东风汽车集团股份有限公司技术中心,武汉430000;东风汽车集团股份有限公司技术中心,武汉430000;东风汽车集团股份有限公司技术中心,武汉430000;东风汽车集团股份有限公司技术中心,武汉430000;
TK414.1+31
rotor oil pump the order noise of oil pump the fluctuation of oil pressure
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