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首页> 外文期刊>Journal of Sound and Vibration >Design of vibration isolators by exploiting the beneficial effects of stiffness and damping nonlinearities
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Design of vibration isolators by exploiting the beneficial effects of stiffness and damping nonlinearities

机译：利用刚度和阻尼非线性的有益效果设计隔振器

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摘要

The present study is concerned with the design of a new type of single degree of freedom(sdof) nonlinear vibration isolation system that can deal with harmonic excitations and take advantage of both spring and damping nonlinearities. For typical design requirements expressed in terms of a transmissibility envelope, the proposed design makes use of a recently developed method called the output frequency response function (OFRF) approach, which provides a direct relationship between the system output frequency response and parameters that define the system nonlinearity. Taking all output harmonics into account, a detailed step-by-step procedure is developed to systematically determine the nonlinear parameters from a small set of simulation or experimental data. Simulation studies are conducted to verify the results and demonstrate that the design can effectively achieve all the three requirements for a vibration isolation system of a low resonant peak, low high frequency transmissibility, and a large isolation range.
机译：本研究涉及一种新型的单自由度（sdof）非线性隔振系统的设计，该系统可以处理谐波激励并同时利用弹簧和阻尼非线性。对于以透射率包络表示的典型设计要求，建议的设计使用了最近开发的称为输出频率响应函数（OFRF）方法的方法，该方法在系统输出频率响应与定义系统的参数之间提供了直接关系。非线性。考虑到所有输出谐波，制定了详细的分步程序，以从一小组仿真或实验数据中系统地确定非线性参数。进行仿真研究以验证结果，并证明该设计可有效满足低共振峰值，低高频透射率和大隔离范围的隔振系统的所有三个要求。

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