A Degradation Modeling Method for Electromagnetic Relay Based on Multiple Degradation Mechanism Coupling
A technology of electromagnetic relay and degradation mechanism, applied in CAD numerical modeling, design optimization/simulation, etc., can solve problems such as lack of multi-degradation coupling effect, affecting the reliability of the entire life cycle of electromagnetic relays, etc.
Active Publication Date: 2022-03-25
HARBIN INST OF TECH
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Problems solved by technology
However, this method ignores that the actual working process of the electromagnetic relay is a multi-field and multi-degradation coupling process, and the degradation model of the independent manufacturing process parameters deviates from the actual one. These deviations will affect the evaluation and optimization process of the reliability of the electromagnetic relay's life cycle.
[0006] Therefore, based on the consideration that the current degradation modeling of electromagnetic relays lacks the coupling effect of multiple degradations, it is necessary to develop a degradation modeling method for electromagnetic relays based on the coupling of multiple degradation mechanisms
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[0036] Embodiment: select KMC-070 model electromagnetic relay
[0037] Step 1: According to the characteristics of the processing and assembly process of electromagnetic relay parts, the electromagnetic relay is decomposed step by step according to the system whole machine → assembly subsystem → subsystem parts → subsystem manufacturing process parameters, and the contact gap and flexible multi-body are analyzed and determined The degradation parameter of stiffness;
[0038] Step 2: Determine the operating temperature range of -55°C to 125°C in the typical operating temperature profile of the electromagnetic relay specified in GJB65-B, and use the temperature distribution of the electromagnetic relay as a characteristic parameter;
[0039] Step 3: Carry out experiments at different temperature profiles on the above-mentioned determined contact gap and flexible multi-body stiffness to obtain the degradation data of the contact gap and flexible multi-body stiffness;
[0040] St...
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The invention relates to a degradation modeling method of an electromagnetic relay based on coupling of multiple degradation mechanisms, which relates to a degradation modeling method of an electromagnetic relay. Analyze the time-varying degradation parameters that may exist in the electromagnetic relay, conduct experiments on the time-varying degradation parameters under the condition of full coverage of the characterization parameters, and use the modeling method based on the degradation mechanism or stochastic process to obtain the degradation model of the electromagnetic relay time-varying degradation parameters, Use the time-varying parameter degradation model to establish a time-varying degradation parameter dictionary library for electromagnetic relays, and then establish a calculation model for electromagnetic relay representation parameters. In the representation parameter calculation model, calculate the state representation parameters of the current multi-degeneration parameter stage, and substitute the state representation parameters into the degradation dictionary Library, obtain the degradation parameters of the next state, and then use the state representation parameters at this time as the current state to calculate the state parameters, and then obtain the degradation parameters of the next state, and iteratively calculate the life cycle under the coupling effect of multi-source degradation parameters Time-varying degradation parametric models.
Description
technical field [0001] The invention relates to an electromagnetic relay degradation modeling method, in particular to an electromagnetic relay degradation modeling method based on multi-degradation mechanism coupling, belonging to the field of design optimization and reliability of electromechanical products of electromagnetic relays. Background technique [0002] Electromagnetic relays have typical advantages such as excellent versatility, high isolation strength, and excellent interference resistance, and are widely used in modern equipment such as industrial operation and control systems, aerospace aircraft, spacecraft, manned and unmanned spacecraft Complete functions such as control signal transmission, function control execution, and energy system power distribution. With the development of modern equipment towards high sensitivity, high power consumption per unit volume, and high reliability in the whole life cycle, the demand for high reliability in the whole life c...
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IPC IPC(8): G06F30/20G06F111/10
Inventor 陈岑陈昊翟国富叶雪荣
Owner HARBIN INST OF TECH