噪声与振动控制Issue(4)：138-141,147,5.DOI:10.3969/j.issn.1006-1335.2014.04.030
考虑设备弹性的隔振系统
Isolation Effect of the System with Equipment Support’s Flexibility
摘要
Abstract
The flexibility characteristic of the isolated equipments in high frequency domain is studied. A model, in which the elastic support of the equipment is regarded as a continuum system with free ends, is established. The vibration source output is regarded as a constant force applied to the equipment’s support, and its rigid motion and elastic vibration are considered. Then, the characteristics of the flexible equipment’s support and the power flow transmission of the vibration isolation system are studied utilizing admittance matrix method. It is shown that the position of the source excitation has a great influence on the performance of the vibration isolation system. The eccentricity of the excitation force can induce lateral oscillation of the system and inspire even order modes of the support and the base, which will lead to poor isolation effect. The non-symmetric distribution of the isolators to the central line of the support or the base can excite the even order modes of the base, and the former can furthermore inspire lateral-pitch coupled oscillation. Results of the analysis may have some reference significance for improvement of vibration isolation of equipments with flexible supports.关键词
振动与波/隔振/弹性设备/导纳/功率流Key words
vibration and wave/vibration isolation/flexible equipment/mobility/power flow分类
通用工业技术引用本文复制引用
高阳,孙玲玲,王晓乐..考虑设备弹性的隔振系统[J].噪声与振动控制,2014,(4):138-141,147,5.基金项目
国家自然科学基金资助项目 （）
