The operational state of Hermetically Sealed Electromagnetic Relays (HSER) in the aerospace sector involves multiple physical processes, including mechanical, electrical, and magnetic phenomena. efficiency accuracy traditional dynamic characterization methods, which rely on static data tables, are inadequate for meeting demands reliability analysis. T his paper introduces a meshless node flexible body model as foundation multibody dynamics model. It establishes real-time interaction channel...

Hermetically sealed electromagnetic relays (HSER) are critical components within aerospace applications, particularly in power supply and communication systems, thus have stringent reliability requirements. To enhance the quality consistency across different batches, there is a significant need for production line that capable of real-time adaptive adjustments. This paper analyzes manufacturing process typical HSER model, identifying initial pressure contact system as primary control target...

Electromagnetic devices containing permanent magnet (PM) are common and typical electromagnetic that have advantages of low-power consumption, small size, high sensitivity, its optimization problem has aroused widespread concern. Calculation accuracy properties efficiency processes two important factors affect the effect devices. A fast calculation method was proposed in this paper aimed at with PM characteristics strong non-linearity low solving precision. The response surface used to...

Hermetically Sealed Electromagnetic Relay (HSER), used in aviation and aerospace, demands high reliability due to its critical applications. Given complex operating conditions, efficient thermal analysis is essential for optimizing reliability. The commonly Finite Element Method (FEM) often time-consuming may not be or adaptable multi-dimensional system calculations design processes. This paper introduces an method networks based on matrix perspective technology, encompassing transformation,...

The equivalent model of a permanent magnet (PM) plays an important role in electromagnetic system calculation. A type subsection for PM bar is established, to improve the accuracy traditional circuit method. mathematical expression, and its end verification condition, are presented. Based on analytical method finite element method, leakage permeance calculation open magnetic investigated. As example, given certain bar, flux each section validated by experiment, simulation. This offers...

The magnetic properties of soft materials, including their saturation induction strength and permeability, significantly affect the dynamic characteristics electromagnetic relays. However, materials most commonly used for relays in conductive components systems, such as electrical pure iron, limit further relay design improvement optimization to a certain extent. Thus, this paper proposes use amorphous nanocrystalline with good high-frequency circuits. A wavelet analysis was conducted on...

To increase the retaining force, a novel design for concentric, bi-directional, electromagnetic valve actuator that contains double-layer permanent magnets is presented in this paper. analyze retaining-force change caused by magnets, an equivalent magnetic circuit (EMC) model established, while EMC of permanent-magnet (DLMVA) also designed. Based on 3D finite element method (FEM), calculation built optimization key DLMVA parameters, and valve-actuator results are adopted improvement design....

The enclosed isolated phase bus-bar (EIPB), which is the first power transmission part of synchronous generator output, plays an important role in stability system short circuit conditions. section shape has very big relation with dynamic EIPB. In this paper, analytical calculation model EIPB analyzed firstly. Based on model, finite element method (FEM) and its established. traditional rectangle circle are calculated using model. performances under different conditions discussed: enclosures...

As a part of the power system, stability enclosed isolated-phase bus bar (EIPB) plays an important role in working safety system. Usually, dynamic-thermal EIPB is analyzed by theoretical analysis or finite-element method (FEM). The dynamic can be calculated 2-D model. For complex structure and huge size EIPB, large synchronous generator-side system rarely analyzed. In this paper, new co-simulation studied. subsegments model based on FEM established, temperature distribution joint surfaces...

Modeling of permanent magnet (PM) is very important in the process electromagnetic system calculation aerospace relay (AEMR). In traditional analytical calculation, PM often equivalent to a lumped parameter model one magnetic resistance and potential, but great error caused for inner differences PM; based on conception flux tube, type 2D circuit framework (2D MECF) established; element defined, relationship between elements deduced, solution procedure as well verification condition this...

With the fast-developing electromagnetic valve actuator, multi-objective optimal methods for actuator problems have been widely concerned in recent years. This article presents a modified particle swarm optimization algorithm based on sorting method and employs it to product design of actuator. The simulation results show that could obtain better Pareto front contrast classical non-dominated genetic algorithm-II method, meanwhile preserving high capacity fast solving solutions.

Material properties play an important role in the performance of electromagnetic mechanism. For aeronautic Hermetically-Sealed Electromagnetic Relay (HSER), more than 50% parts are made soft magnetic materials. Therefore, materials directly determines static and dynamic characteristics HSER. Based on theory crystal recrystallization, this paper analyzes cold extrusion heat treatment processing materials, simulates grain change process armature at different temperatures, establishes a...

Various intelligent algorithms are applied in optimization design, and the differential evolution (DE) algorithm is widely with its excellent convergence speed precision. This study analyzed advantages disadvantages of existing multi-objective (MODE) algorithm, developed a MODE based on adaptive weight multi-population strategy (MODE/AWMS). The proposed was verified using test functions. MODE/AWMS exhibited certain compared several other algorithms. Taking polarized magnetic relay as an...

The approach on parallelization is studied in the paper order to improve calculation efficiency, mode of static characteristics relay, and scalability algorithms more complex issues larger numerical issues. For clapper-type we establish its physical mathematical model. Then propose a modified formula Amdahl's law assess effectiveness algorithm, giving theoretical value effectiveness. Finally do design original by comparing efficiency serial parallel algorithms, can verify superiority...

Working characteristic of the permanent magnet (PM) is a key point PM relays design. Soft magnetic material and coil will effect working PM. In order to analyze coil, combined three-subsection in close circuit model (CTPMC) built based on equivalent circuit, its theoretical established under potential effect. Through deduction, it concluded that each subsection works at different recoil lines points would change due coil. Finally, above analysis results are validated by simulation experiments.

DC solenoid electromagnetic contactor is widely used in electrical vehicles, airplanes, trains and other 270v high voltage power supply system. Due to its special working environment, the limitation of volume weight strict. This requires have excellent shock absorption breaking capacity. The static calculation model one type established using finite element method (FEM). Then dynamic numerical contact spring system further combined with characteristics. Runge-Kutta adopted solve differential...

Fault diagnosis and bounce reduction of electromagnetic actuators require one to obtain the electromechanical transient characteristics (ETCs) in real-time. ETCs can be measured by sensors, but due their large size intrusiveness, approach has its limitations. Acquiring through finite element method (FEM) could an alternative, except that FEM is known time consuming. In contrast, real-time measurement coil current not subjected these restrictions, yet, it been properly utilized for...

In the design and analysis of Non Segregated Phase Bus (NSPB), steady temperature rise calculation is very important especially for bolt-joint contact structure NSPB. order to ensure safety such products, taking a certain type NSPB example, finite element method (FEM) model built based on thermal transfer theory, maximum calculated under different DC AC loads within bus working range, distribution area simulated; correspondence relationship DC-AC discussed; has been tested compared with...