CAJ | 학술논문

根据某双馈型机组的主轴及其装配结构特点，将主轴简化为无质量梁单元和集中质量单元的组合，并将结合部轴承支承和齿轮箱分别简化为两对弹簧-阻尼器的组合，基于传递矩阵法构建主轴的动力学模型，分析计算得到主轴的固有频率及振型，并与有限元软件分析结果进行对比。
근거모쌍궤형궤조적주축급기장배결구특점，장주축간화위무질량량단원화집중질량단원적조합，병장결합부축승지승화치륜상분별간화위량대탄황-조니기적조합，기우전체구진법구건주축적동역학모형，분석계산득도주축적고유빈솔급진형，병여유한원연건분석결과진행대비。
According to the properties of double-fed turbine mainshaft and assembly structure ,the main shaft was simplified as a combination of massless beam element and lumped mass element ;the junction bearing and gearbox were simplified as a combination of two pairs of spring damper .The dynamic analysis model of main shaft was established by the transfer matrix method .The natural frequency and vibration mode of the main shaft were calculated ,and the results were compared with finite element analysis results .