【摘要】 应用PULSE测试分析系统中阶次跟踪法,测试分析某型乘用车车内四个位置的噪声水平随发动机转速变化的关系.揭示了该型汽车在测试工况下,不同的转速对车内噪声的贡献规律.为降低车内行驶噪声和振动响应提供了重要的分析依据和参考.更多还原

【Abstract】 In this paper the order tracking technique in PULSE Multi-analysis system is used to determine and analyze the noise and vibration varying with engine speed at four different seats.Test results show that both noise and vibration at different speeds in the test car contribute differently to the sum noise energy under testing conditions.It provides an analysis basis and reference for reducing car noise and vibration.更多还原