贡献理论 meaning in English

contribution theory

Because damage and reinforcement change the mass and stiffness of building , they will change frequency . so , what is the regularity of this change and how to apply the regularity in practical work are a problem deserving of public attention . in this paper . regarding the typical steel industry building as the object . applying the dynamic stiffness method to make simulation analysis , the author firstly gets the regularity of frequency change
如何在工程实际中主动应用这些规律?都是值得研究的问题。本文以典型的钢结构单层厂房为研究对象，应用动力刚度法进行计算机模拟，系统研究损伤和加固对结构基本频率的影响，探索出一些规律；并用贡献理论解释了这些规律。