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本文对典型柱塞式液压动力元件作动力学探讨,根据四种最基本的周期性理想扰动的离散频谱分析,提出此类扰动力的谐波分量是激发壳体及有关部件的振动,形成噪声的根源。所导出的公式表明:元件结构参数,使用条件和噪声频谱之间有一定的关系,并与试验结果相符合。由此可为改进制造工艺,采取振动隔离措施,设计新型液压动力元件以降低噪声提供理论性依据。
In this paper, the typical plunger hydraulic power components for dynamic study, according to the four most basic periodic ideal disturbance discrete spectrum analysis, proposed that the harmonic components of such disturbances are excited shell and related components of the vibration, the formation of noise The root cause. The derived formula shows that there is a certain relationship between the structural parameters of the components, the conditions of use and the noise spectrum, and is consistent with the test results. This can be to improve the manufacturing process, to take vibration isolation measures, the design of new hydraulic power components to provide a theoretical basis to reduce noise.