Method for designing quasi-zero stiffness nonlinear suspension system

A system design, quasi-zero stiffness technology, applied in the field of quasi-zero stiffness nonlinear suspension system design, to achieve the effect of ensuring reliability, high adaptability to economic value, and good design guidance

Active Publication Date: 2013-09-04
SHANGHAI SATELLITE ENG INST
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Problems solved by technology

However, there is no relevant design technology for this kind of quasi-zero stiffness nonlinear suspension system

Method used

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  • Method for designing quasi-zero stiffness nonlinear suspension system
  • Method for designing quasi-zero stiffness nonlinear suspension system
  • Method for designing quasi-zero stiffness nonlinear suspension system

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Embodiment Construction

[0044] The present invention will be described in detail below in conjunction with specific embodiments. The following examples will help those skilled in the art to further understand the present invention, but do not limit the present invention in any form. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention. These all belong to the protection scope of the present invention.

[0045] see figure 1 , a quasi-zero stiffness nonlinear suspension system design method, comprising the following steps:

[0046] Step 1: Determine the zero stiffness region of the quasi-zero stiffness nonlinear suspension system according to the mass of the suspended object and the suspension frequency range.

[0047] In this step, according to the mass m of the suspended object and the initially determined suspension frequency range f 0 (Generally 0~0.1Hz), the system target stiffness k d Calc...

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Abstract

The invention provides a method for designing a quasi-zero stiffness nonlinear suspension system. The method includes the following steps that step one, a zero stiffness area of the quasi-zero stiffness nonlinear suspension system is determined according to the quality of a suspended object and the frequency range of suspension; step two, the stiffness of a negative stiffness disc spring set is designed according to a space environment and a test environment; step three, the stiffness of a positive stiffness wire spring is designed; step four, the zero stiffness area of the suspension system is verified and optimized; step five, ultimate bearing strength and fatigue life of the suspension system are verified; step six, a failure analysis and a failure handling are carried out on the suspension system, and design of the suspension system is completed. Under the limit conditions of the suspended object and an application environment, the design of the suspension system can be achieved rapidly and reliably, implementation is high in efficiency, reliability, safety and expandability are high, the application prospects are broad and applicable economic value is high.

Description

technical field [0001] The invention relates to the field of ground micro-vibration tests, in particular to a design method for a quasi-zero-stiffness nonlinear suspension system. Background technique [0002] The quasi-zero stiffness nonlinear suspension system has the characteristics of high static stiffness, low dynamic stiffness, and nonlinearity, and can ensure that the stiffness of the system tends to zero. It can effectively realize the function of simulating the weightlessness environment on orbit, and is extremely useful for ground micro-vibration tests. Great application value and development prospect. [0003] The demand for micro-vibration research is becoming increasingly urgent. While facing more and more different research objects, it is necessary to quickly realize the design of quasi-zero stiffness nonlinear suspension system to ensure the development progress and quality. Therefore, the development of a quasi-zero stiffness nonlinear suspension system that...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
Inventor 蒋国伟周徐斌申军烽满孝颖钟鸣沈海军虞自飞
Owner SHANGHAI SATELLITE ENG INST
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