CAJ | 학술논문

本文研究转速对转子振动频率的影响。首先对 SOLID WORKS有限元软件进行模态分析的可靠性结果进行验证，然后计算了27种不同转速下前10阶转子振动频率，并分析其变化规律，提出使用SOLIDWORKS有限元法求解实际工程上临界转速的新方法。研究结果表明，随着转速增加，转子的振动频率将相应增加，且其增加具有非线性；随着转速的变化，转子的高阶次振动频率将发生组合和分离，其临界点发生在临界线（“振动频率=转速对应频率”直线）上；利用有限元法和临界线，求解实际工程临界转速的新方法比其他方法的准确性更高。
본문연구전속대전자진동빈솔적영향。수선대 SOLID WORKS유한원연건진행모태분석적가고성결과진행험증，연후계산료27충불동전속하전10계전자진동빈솔，병분석기변화규률，제출사용SOLIDWORKS유한원법구해실제공정상림계전속적신방법。연구결과표명，수착전속증가，전자적진동빈솔장상응증가，차기증가구유비선성；수착전속적변화，전자적고계차진동빈솔장발생조합화분리，기림계점발생재림계선（“진동빈솔=전속대응빈솔”직선）상；이용유한원법화림계선，구해실제공정림계전속적신방법비기타방법적준학성경고。
This paper studies the impact of speed on the rotor vibration frequency. First, the reliability of the results of finite element software SOLIDWORKS modal analysis is verified, and then the front 10 order rotor vibration frequencies at the 27 kinds of different speeds was calculated and the new method of solving the practical engineering critical speed using SOLIDWORKS the finite element software was proposed. The results show that as the speed increases, the vibration frequency of the rotor will increase accordingly, and it increases with nonlinear, with the speed changes, higher order vibration frequency of the rotor occurs combination and separation. The critical point occurs atthe critical line (“the vibration frequency is equal to the speed frequency” straight line). Using the finite element method and the critical line, a new method for solving practical engineering critical speed is higher than the accuracy of other methods.