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Relay life prediction method based on multidimensional design parameters

A technology for design parameters and life prediction, applied in computer-aided design, design optimization/simulation, instruments, etc., can solve the problems of reliability and short life of high-power electromagnetic relays, and achieve the effect of improving the life of relays and improving the reliability of use

Active Publication Date: 2020-02-14
HARBIN INST OF TECH
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Problems solved by technology

At present, the reliability and short life of high-power electromagnetic relays have become urgent problems to be solved

Method used

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  • Relay life prediction method based on multidimensional design parameters
  • Relay life prediction method based on multidimensional design parameters
  • Relay life prediction method based on multidimensional design parameters

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Embodiment Construction

[0025] The technical solution of the present invention will be further described below in conjunction with the accompanying drawings, but it is not limited thereto. Any modification or equivalent replacement of the technical solution of the present invention without departing from the spirit and scope of the technical solution of the present invention should be covered by the present invention. within the scope of protection.

[0026] The invention provides a method for predicting the life of a relay based on multidimensional design parameters. The method first analyzes the working principle of the relay product, and obtains the experimental data of the life of the relay under different design parameters through the control variable method; then, according to the above experimental data Analyze and determine the sensitive design parameters that affect the life of the relay; at the same time, during the life test, collect data such as the relay coil current, main circuit current...

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Abstract

The invention discloses a relay service life prediction method based on multidimensional design parameters, and the method comprises the steps: firstly analyzing the working principle of a relay product, and obtaining relay service life experiment data under different design parameter conditions through a variable control method; then analyzing and determining sensitive design parameters influencing the service life of the relay; in the process of carrying out the service life experiment, collecting the working data of the relay, and determining characteristic parameters representing the service life of the relay; establishing a regression design matrix, taking the relay life characteristic parameters as observation vectors, solving parameter vectors, and obtaining a mathematical model ofthe characteristic parameters about the design parameters; taking the change rate of the characteristic parameters as an observation vector, and fitting to obtain a mathematical model of the change rate of the characteristic parameters relative to the design parameters; and finally, combining the two models to obtain a life prediction model. The relation between the relay service life and the multi-dimensional design parameters can be determined through modeling, and relay design can be guided to further prolong the relay service life.

Description

technical field [0001] The invention belongs to the technical field of life prediction and relates to a method for predicting the life of a relay, in particular to a method for predicting the life of a relay based on multidimensional design parameters. Background technique [0002] With the rapid development of new energy, aerospace, aviation, electric vehicles and other fields, the demand for electromagnetic relays has shifted to high voltage and high power levels, and its breaking voltage and current need to be further improved, while its reliability and service life must be guaranteed. At present, the reliability and short life of high-power electromagnetic relays have become urgent problems to be solved. If we can explore the relationship between the relay life and its multidimensional design parameters, and determine the characteristic parameters that can characterize the state of the relay, and establish a relay life prediction method based on multidimensional design p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/20G06F119/04
CPCG01R31/3271
Inventor 周学廖晓宇朱旭晴王淑娟翟国富梁慧敏
Owner HARBIN INST OF TECH
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