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Moving-iron type proportional electromagnet constant force prediction method based on response surface

A proportional electromagnet and prediction method technology, applied in electrical digital data processing, instruments, geometric CAD, etc., can solve the problems of not considering interaction and low efficiency of electromagnetic force optimization, saving design time and cost, and verifying accuracy , the effect of improving computational efficiency

Pending Publication Date: 2020-03-27
WENZHOU UNIVERSITY
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  • Claims
  • Application Information

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Problems solved by technology

[0003] The above research only focuses on the influence of a single influencing factor on the electromagnetic force, and does not consider the interaction between various influencing factors, resulting in low efficiency in optimizing the electromagnetic force

Method used

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  • Moving-iron type proportional electromagnet constant force prediction method based on response surface
  • Moving-iron type proportional electromagnet constant force prediction method based on response surface
  • Moving-iron type proportional electromagnet constant force prediction method based on response surface

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Embodiment Construction

[0059] Embodiments of the present invention will be further described below in conjunction with accompanying drawings:

[0060] 1. Structural composition and working principle of moving iron proportional electromagnet:

[0061] The structure of the moving iron proportional solenoid (MAPS) is as follows: figure 1 As shown, it mainly includes: upper casing 1, lower casing 2, moving iron 3, guide rod 4, guide sleeve 5, bobbin 6, excitation coil 7, lower end cover 8, bearing 9 and other parts. The magnetic isolation ring 10 is a key structural component for MAPS to generate constant force characteristics within the effective working stroke. It is connected with the upper guide sleeve and the lower guide sleeve by welding to form a guide sleeve structure. Due to the existence of the magnetic isolation ring structure, when the excitation coil is fed with current, two special magnetic circuits are formed inside the MAPS. A magnetic circuit φ 1 The upper casing enters the moving ir...

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Abstract

The invention discloses a moving-iron type proportional electromagnet constant force prediction method based on a response surface, and relates to the field of electromagnet optimization, and the method comprises the steps: 1, building a moving-iron type proportional electromagnet finite element model in JMAG electromagnetic simulation software through a finite element method; 2, performing test design by utilizing a center composite design in a response surface method, and formulating an experimental scheme of static electromagnetic force of the moving-iron type proportional electromagnet inan effective working interval; 3, carrying out response surface method prediction and prediction verification, utilizing the finite element model to predict the influence factors of the ideal constantforce value, utilizing the finite element method to carry out simulation analysis on the prediction result, and obtaining the maximum error and the minimum error between the finite element method calculation result and the ideal constant force value. The method has the advantages that the accuracy is high, and the design time and cost are saved.

Description

technical field [0001] The invention relates to the field of electromagnet optimization, in particular to a method for predicting constant force of a moving iron proportional electromagnet based on a response surface. Background technique [0002] As a key component in electro-hydraulic proportional control technology, moving iron proportional electromagnet has the advantages of simple structure, large thrust and convenient maintenance, and is widely used in national defense, aerospace and civil fields. The moving iron proportional electromagnet is used as the spool drive unit of the proportional valve, and its constant force characteristic within the effective working stroke directly determines the control accuracy of the proportional valve, so the linearity of the displacement-force curve within the effective working stroke is a measure A key indicator of proportional valve performance. Li Qipeng et al. used the finite element method to study the influence of various key ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/23G06F30/17G06F111/10G06F119/14
Inventor 庞继红王瑞庭罗中伦李勇代金坤
Owner WENZHOU UNIVERSITY