noise vibration theory的意思|示意

A 4d dynamic model has been established for the vehicle suspension system. No-linear random vibration theory is used to discuss how to solve this equation by FPK based on filtered white noise input.

建立了四自由度车辆悬挂系统的动力学模型，并应用非线性随机振动理论，在对模型输入进行过滤白噪声简化的基础上，探讨了用FPK法解方程的可能途径。

Contributes to a research on the vibration radiation noise of piezoelectric pump. Two theory models are introduced, which calculate the synthetic sound pressure according to the vibration quantity.

研究压电泵振动放射噪声，提出两种由振动量计算压电泵合成声压的理论模型。

According the theory analysis, the effective method is applied in actual site and noise reduction effect is obvious after vibration isolation.

依据理论分析结果，对实际现场采取了有效的隔振降噪方法，隔振后降噪效果明显。

In this paper, the relationship between the structure vibration and the surface noise radiation is analyzed and deduced from the acoustic and vibrational theory.

本文从声学振动理论出发，分析并导出了结构的振动与表面辐射噪声的关系。

Based on the theory analysis, the reason was discovered of oil- blocking during the operation of a gear oil pump, which resulted in power loss, vibration and noise.

通过分析 ，找出了齿轮油泵在运转过程中造成困油容积而形成功率损失、振动和噪声的原因 ，为设计和维修齿轮油泵提供了消除困油现象的方法和结构措施。

Based on discrete random vibration theory, recurrence formulas are developed to calculate the dynamic response of structures under white noise excitations.

基于随机振动的离散分析理论，推导出白噪声激励下结构动力响应的递推公式。