The Japan Research Institute, Limited

Jsol Corporation

Koji Tani

Takashi Yamada

Tetsuo Ogawa

A computer program causes a computer to execute processing of simulating behavior of an electromagnetic component including a coil at each of a plurality of time points based on an analytic model of the electromagnetic component. The processing comprises creating a look-up table storing a flux linkage of the coil, an inductance of the coil and a current in the coil that are obtained by a magnetic field analysis based on the analytic model in association with one another, and simulating behavior of the electromagnetic component by referring to the look-up table using currents in the coil calculated at a previous simulation step and at a step before the previous simulation step.

Non-transitory computer readable recording medium storing a computer program, simulation method and simulation device for simulating dynamic behavior of electromagnetic component

Based on rectangular element data constituting a boundary surface that separates a rotating machine into a stator-side portion and a rotor-side portion, and polygonal or polyhedral element data constituting the stator-side portion and the rotor-side portion excluding the boundary surface, tetrahedral elements including nodes of each of the stator-side portion and the rotor-side portion are created, a node is created at an arbitrary distance from the gravity of the rectangular element in a normal direction for each of the rectangular elements on the boundary surface, mesh division is performed for the tetrahedral elements based on the node at the arbitrary distance and nodes on the boundary surface, and mesh division is further performed based on nodes of the stator and the rotor.

Method for generating three-dimensional mesh method for magnetic field of rotating machine, system for generating three-dimensional mesh, system for analyzing magnetic field of rotating machine, computer program, and recording medium

A two-dimensional mesh is generated on a plane perpendicular to the rotation axis. At this time, a ring-shaped gap is provided between the rotor and the stator, and portions facing the ring-shaped gap are equally divided into the same number of parts. An initial three-dimensional mesh is generated by joining together a plurality of two-dimensional meshes in the direction of the rotation axis while rotating the two-dimensional meshes. A boundary surface is formed in a cylindrical gap composed of a stack of the ring-shaped gaps, and a three-dimensional mesh is generated by filling the cylindrical gap with a plurality of polyhedrons, including polyhedrons comprising each of surface elements constituting the stator-side mesh surface, rotor-side mesh surface and boundary surface as one face.

Three-dimensional mesh generating method, magnetic field analysis method for rotating machine, three-dimensional mesh generating device, magnetic field analysis device for rotating machine, computer program, and recording medium

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Osaka, Japan

Koji Tani