非固定拘束両質量体に基づく完全フラッター終了パラメータの求め方

Japanese Patent JP7075158

B2

The present invention proposes a method for solving a complete flutter termination parameter based on double mass bodies of non-fixed constraint, including the following steps: obtain model input parameters at a flutter termination moment t0, wherein the model input parameters includes the mass ratio of the double mass bodies as well as position coordinates, a speed, an acceleration speed and a restoration coefficient of each mass body, the mass ratio and the restoration coefficient are both constants; establish a first solution model to obtain a parameter at a flutter termination moment t∞; establish a second solution model to obtain position parameters of the double mass bodies at the flutter termination moment t∞; establish a third solution model to obtain speed parameters of the double mass bodies at the flutter termination moment t∞ according to the third solution model and the model input parameters. The present invention continues to complete numerical simulation directly from a certain flutter moment, can skip over a flutter process, and directly obtain the flutter termination moment and the positions and speeds of the double collision mass bodies at the flutter termination moment, thereby improving calculation accuracy and saving a lot of calculation time.

Forest dragon
Zhang Hongyuan
Hayashi Toshifumi

JP2021517104A

May 25, 2022

April 13, 2020

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University Of Shanghai For Science And Technology

G01M7/02

CN103383298A

NORDMARK, Arne et al.,Simulation and stability analysis of impacting systems with complete chattering,Journal of Computational and Nonlinear Dynamics,米国,American Society of Mechanical Engineers (ASME),2009年,Vol. 58, No. 1,pp. 85-106,[検索日2022.04.11]インターネット:

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