【摘要】 利用文献[1]得出的近似频率方程和求解条件,结合Rayleigh定理和经典弦的频率公式,推导拉索近似频率方程的求解条件及其参考值,扩大近似频率方程的使用范围。通过数值算例,将文献[1]和本文求解条件的合理性和可靠性进行对比研究,其结果可用于快速测试拉索索力。更多还原

【Abstract】 By means of approximate frequency equation and solving conditions obtained from reference [1] and in combination with Rayleigh theorem and frequency formula of classic string,this paper derives solving conditions of approximate frequency equation and reference values and expand the range of application of approximate frequency equation.Based on numerical examples,the paper conducts comparative study for rationality and reliability of solving conditions in reference [1] and this paper,the result can be used to test cable force quickly.更多还原