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In order to improve the structural performance of a five-axis gantry milling machine, a design idea of adopting parallel optimum design for key components and complete machine was investigated. Using CAE (Computer Aided Engineering) software, the finite element analysis model of the five-axis gantry milling machine key components and the complete machine were established. Then the static stiffness...
The design of piezoelectrically actuated plano-convex shaped resonators has been studied to optimize their Q-factor and signal spectrum at high temperatures. The investigated arrays of thickness-shear-mode (TSM) resonators consist of langasite, a high temperature stable material. As viscoelastic damping and an increasing conductivity decreases the Q-factor at elevated temperatures, design optimizations...
This paper investigates and compares the inductance evaluation methods for interior permanent magnet synchronous motors (IPMSM). Three major finite element methods will be discussed. First, their detail calculation processes are presented as well as their fundamental principles. Not only the results, but also their solving method, computation time and complexity are compared. Then, the discussion...
Discontinuous primary permanent magnet linear synchronous motor (DPPMLSM) has many merits in long-stroke transportation, including vertical, horizontal, and slanted model system, however, detent force of DPMLSM is particularly troublesome requiring positioning accuracy specially at low speed region as well as of position control and is different from short primary type and short secondary type PMLSM...
This paper presents a new procedure for coupling element-free Galerkin method with finite element method (FEM-EFGM). The coupling model is based on overlapping domain decomposition method (DDM), which the domain is decomposed into FEM subdomain and EFGM subdomain, then obtaining the iterative solutions by some techniques. The solutions are more accurate and could eliminate influence of irregular interface...
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