Dynamic Behavior of a Brushless in Runner Motor

作     者：Tièba Ouattara Moussa Magara Traoré Tièba Ouattara;Moussa Magara Traoré

作者机构：Département de Génie Mécanique Energétique et Mines Ecole Normale d’Enseignement Technique et Professionnel (ENETP) Bamako République du Mali 

出 版 物：《World Journal of Mechanics》 (力学国际期刊（英文）)

年 卷 期：2023年第13卷第4期

页      面：93-105页

学科分类：0810[工学-信息与通信工程] 08[工学] 081001[工学-通信与信息系统] 

主　　题：Rotor Dynamics Asymmetric Rotor Parametric Excitation Finite Element Method Unbalance Response 

摘      要：In this article, a model of a rotor with an asymmetric disk is presented in order to represent Campbell’s diagrams and instability maps as a function of the rotations of the support which can significantly change the dynamic behavior of the rotor. Critical rotating speeds can also lead to unacceptable levels of vibration. Indeed, the critical speeds are a function of the dynamic rigidity of the rotating systems and the presence of the gyroscopic forces creates a dependence between the rotating speed of rotation and the natural frequencies to such structures (the CAMPBELL diagrams): this implies that the correct determination of the critical speeds is one of the essential elements when sizing such dynamic systems.