force spectra meaning in English

载荷谱计算法

The main frequency - domain parameters , which are discussed here , include modal numbers , cross terms of force spectra , and cross terms of modals as well as damping ratio
参数分析的内容包括参振模态的数目、力谱交叉项、模态交叉项、结构阻尼比，并得到了一些有价值的结论。
The study shows that adequate modes are important to ensure the precision of computation , and different ways to deal with cross terms of force spectra and modals have a great effect on results , and the resonant responses are sensitive to the structural damping ratio
研究表明，选择足够数量的参振模态对保证计算精度非常重要，力谱交叉项、模态交叉项的不同处理方法对计算结果有较大影响，并且结构共振响应对结构阻尼很敏感。
Based on the analytical model of the generalized force spectra of the first mode of typical lattice towers in along - wind direction , simplified empirical formulae to evaluate along - wind dynamic responses of lattice towers under wind load are proposed in this paper
摘要基于格构式塔架顺风向一阶广义荷载谱解析模型，提出了格构式塔架顺风向风振响应简化计算公式，这些简化公式将求格构式塔架顺风向风振响应的复杂积分变为简便的代数运算。