Method for optimizing reliability of harmonic gear used for space vehicle based on fault physics

A technology of harmonic gear and fault physics, applied in special data processing applications, instruments, electrical digital data processing, etc., can solve the problem of difficult to determine the main failure mode and functional function of the system, shorten the product design cycle and reduce the launch cost. , the effect of reducing the cost of product development
CN102393864AInactive Publication Date: 2012-03-28UNIV OF ELECTRONICS SCI & TECH OF CHINA
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Patent Information

Authority / Receiving Office
CN Β· China
Current Assignee / Owner
UNIV OF ELECTRONICS SCI & TECH OF CHINA
Publication Date
2012-03-28
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

The invention relates to a method for optimizing reliability of a harmonic gear used for a space vehicle based on fault physics. The method comprises the following steps: 1) establishing a physical model of the harmonic gear used for the space vehicle; 2) confirming bottom fault information of the harmonic gear used for the space vehicle; 3) analyzing and acquiring a key part of the harmonic gearused for the space vehicle and a main failure mode thereof; 4) confirming a response surface function of the main failure mode; 5) converting a strength restrain and a fatigue restrain in design optimization of the harmonic gear used for the space vehicle into reliable restrains; and 6) establishing a function expression of the volume of the harmonic gear used for the space vehicle and taking thefunction expression as an optimizing target function. The method provided by the invention has the beneficial effects that the method can be used for performing quantitative optimization of the reliability and ensuring the reliability while efficiently reducing the weight of a product, thereby lowering launching cost.
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