模态应变能法；
简述了理论计算振动参数的方法，重点介绍了模态应变能法。
Outlines the calculation method of vibration parameters, focusing on the modal strain energy method.
在理论研究方面，介绍了弹性应变能法、纤维倾斜模型、三细胞模型和有限元模型等工作。
In theoretical investigations, elastic strain energy method, fiber inclination model, three cells model and finite element model etc. are introduced.
利用单元局部频率变化率法和单元模态应变能比法，对连续梁桥进行了损伤诊断的数值模拟研究。
Based on element local frequency change ratio method and element modal strain energy ratio method, numerical study is carried on to detect the damage of the bridge.
研究表明：在本次试验的情况下，频率分离法、频率分离法的应变能修正法可以变形成一个统一的模型表达式。
Research shows that a uniform expression can be obtained according to the law of frequency separation and its revision with strain energy.
此外还介绍了用两种三轴应变计进行岩体应力测量的结果以及能考虑自重边界元法的实际应用。
Results of measurements on rock mass stresses by two kinds of triaxial strain cells are reported. Finally the possible applications of BEM with gravity are discussed.
运用最大应变能理论和强度极限分析法，对简体、端板等重要部件进行了强度校核。
Used the maximum strain-energy theory and strength limit analytic method to check the important part such as sleeve, end-plate, etc.
以“弯曲应变能最小”为优化准则、采用“三步循环坐标搜索法”求解最优吊点坐标。
Using the criterion of "minimum bending strain energy", the optimum hoisting points of the column are determined with the method of "three step cycling coordinate search".
主要使用了有序样品聚类分析中的离差平方和法、最优分割法，再结合地震学应变能释放水平进行划分。
We use mainly the squariance method among sequence samples cluster analysis and the method of optimum partition, and combine the standard of release level of seismology strain energy to divide it.
精化杂交法可以使单元的应变能按假定的应变模式分解，由此得到相应的分解的单元刚度矩阵，而且常常可以推出显式。
By this way the element stiffness matrix can be decomposed into a series of matrices with respect to assumed strain modes.
本论文结合基于模态应变能改变的损伤识别方法、随机有限元法、概率统计方法，得出一套基于模态应变能改变的损伤统计识别方法。
The thesis combines finite element method, modal strain energy of change, and statistic method, develops a sort of damage statistic identification method.
本论文结合基于模态应变能改变的损伤识别方法、随机有限元法、概率统计方法，得出一套基于模态应变能改变的损伤统计识别方法。
The thesis combines finite element method, modal strain energy of change, and statistic method, develops a sort of damage statistic identification method.
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