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Method for optimizing running-in process of mechanical product by utilizing power spectral density curve

A technology of power spectral density and mechanical products, which is applied in the field of optimization of mechanical product assembly running-in process, can solve problems such as long running-in time, wear, and difference in excitation effect, and achieve the effects of improving competitiveness, simplifying the running-in process, and good practicability

Active Publication Date: 2020-03-06
BEIHANG UNIV
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  • Summary
  • Abstract
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  • Claims
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Problems solved by technology

Excessive energy is easy to cause wear, and too small energy will lead to longer running-in time. The energy under different frequency bands has different excitation effects on different types of potential defects.

Method used

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  • Method for optimizing running-in process of mechanical product by utilizing power spectral density curve
  • Method for optimizing running-in process of mechanical product by utilizing power spectral density curve
  • Method for optimizing running-in process of mechanical product by utilizing power spectral density curve

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Embodiment Construction

[0050] Specific embodiments of the present invention will be described below in conjunction with the accompanying drawings. Certain terms are used herein for convenience only and are not to be regarded as limitations of the invention. For example, terms such as "upper," "lower," "left," "right," "horizontal," "vertical," "upward," and "downward" merely describe the configurations shown in the drawings. In fact, components may be oriented in any orientation, and thus the term should be understood to include all such variations unless otherwise indicated. In this specification, the word "comprising" should be understood as its "open" meaning, ie, "having", and therefore should not be limited to the "closed" meaning, ie, "only includes". Corresponding meanings also apply to the corresponding words "comprising", "including" and the like. Although expressions such as "1st", "2nd", "first" and "second" may be used to describe the respective elements of the present invention, they ...

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Abstract

The invention discloses an optimization method of a mechanical product running-in process. The method comprises the following steps: step 1, collecting a traditional running-in process signal; step 2,drawing a random signal power density spectrum; step 3 , calculating the total energy value in one running-in cycle of the traditional method; step 4, selecting an optimal working condition combination; step 5, optimizing the running-in time; and step 6, drawing an optimized running-in process parameter table.

Description

technical field [0001] The invention relates to a method for optimizing the running-in process of a mechanical product assembly, in particular to finding the best running-in condition by using the dynamic process information (such as vibration signal, acoustic emission signal, etc.) collected by the running-in test and using the power spectral density analysis method Combination and corresponding time to achieve the purpose of shortening the running-in time and simplifying the running-in process. Background technique [0002] Running-in refers to a measure to make the mating parts run normally and stably after assembly of mechanical products before use, also known as running-in. The surface of new product parts or reinstalled parts must have micro and macro geometric defects. Putting it into use directly will cause early wear and tear or even failure of mechanical products. Therefore, before the product leaves the factory, it is necessary to carry out a bench test for the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/20G06F119/18G06F111/10
Inventor 戴伟孙佳欢
Owner BEIHANG UNIV
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