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The nonlinear primary resonances of a pneumatic spring with simple harmonic excitations were studied by the method of nonlinear dynamics. Through testing, load curve of the pneumatic spring under a certain initial pressure was got. According to the test data, the relative elastic force was fitted to relative displacement by cube polynomial equation. The method of multiple scales was used to solve...
Due to the volumetric compressibility of air, the usage of linear models as a mean to describe the behavior of pneumatic vibration isolators is often justified given the range of parameter settings of characteristic system properties. Outside this range, the nonlinear behavior may quickly prevail over the linear behavior. In this paper, a nonlinear model of pneumatic vibration isolator was established,...
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