CAJ | 학술논문

为计算某型号电机底座的固有振动频率，研究其共振特性，利用Lanczos 法对其进行模态分析，得到了前6阶固有频率及振型。在此基础上，运用Hyperworks软件的Optistruct模块，对底座结构的固有频率进行优化。优化结果表明，此方法能有效提高底座的1阶固有频率，从而避开谐振区，抑制电机与底座之间发生共振。
위계산모형호전궤저좌적고유진동빈솔，연구기공진특성，이용Lanczos 법대기진행모태분석，득도료전6계고유빈솔급진형。재차기출상，운용Hyperworks연건적Optistruct모괴，대저좌결구적고유빈솔진행우화。우화결과표명，차방법능유효제고저좌적1계고유빈솔，종이피개해진구，억제전궤여저좌지간발생공진。
For calculating the natural frequencies of a type of electric motor base, the resonance characteristics are re-searched.Using Lanczos method for the modal analysis, the first six-order natural frequency and mode shape are obtained. On this basis, using Optistruct module of Hyperworks, the natural frequency of the electric motor base is optimized.Optimiza-tion results show that this method can improve the first-order natural frequency of the base, and then resonance region is avoi-ded for suppressing resonance between the motor and the base.