摘要
以工程中常见的多级阶梯轴连续模型为研究对象，利用弹性波传播理论，对于某轴段在一均布扭振激励力矩作用下的整个轴系的扭振响应进行了研究。通过建立各轴段的波动方程组，利用边界条件、初始条件及在变截面处的反射、透射现象，得出了各个轴段中的行波沿轴向传播的表达形式；利用数值迭代方法可求得任一截面上的扭振动力响应。以汽轮发电机组轴系为对象，进行了扭振动力响应计算的研究。
Multi-stepped shaft is used as a basic modal that is more popular in engineering practice. The partial differential equations of torsional wave propagating along the stepped shaft are set up. The initial conditions, boundary conditions and reflection transmissions of elastic wave in varying cross-section are considered. The wave solutions of motion equation are derived in order to determine dynamic response in cross-section of the shaft. Meanwhile, the torsional elastic wave propagation theory is applied for dynamic response investigation of continuous distribution modal of shaft system in turbogenerator.The different calculation results are quoted and compared with the analytical results.
出处
《中国机械工程》
EI
CAS
CSCD
北大核心
1999年第11期1277-1279,共3页
China Mechanical Engineering
基金
国家自然科学基金资助项目
关键词
扭转弹性波
扭振响应
汽轮发电机组
阶梯轴
multi-shaft system torsional elastic wave torsional vibration response turbogenerator
