摘要
针对叶片动频率陀螺特征值问题,首先将其转化为等价的广义实对称矩阵特征值问题,然后用拟波前子空间迭代法进行求解.在经转轴算例验证之后,用此方法分析某型压缩机工作叶片的动力特性,发现其有发生内共振的可能,而陀螺阻尼则起一定的致稳作用.
The gyroscopic eigenproblem concerning the dynamic frequencies of compressor blades is shown to be equivalent to the generalized eigenproblem of two symmetric real matrices. A subspace iteration algorithm is applied to solve the problem using a quasi front method. Applications are made to a spinning shaft and the compressor blades. Possibile inner resonances could be damped to the gyros copic motion.
出处
《西安交通大学学报》
EI
CAS
CSCD
北大核心
1999年第8期32-34,43,共4页
Journal of Xi'an Jiaotong University
基金
国家自然科学基金