By introducing a damage variable expressed by the equivalent shear stiffness, a dynamic shearing damage constitutive model of rock is established including three phases.
定义了用等效剪切刚度表示的损伤变量，建立了一个分三阶段表述的岩石动态剪切损伤本构模型。
Based on the concept of equivalent stiffness of rock masses, the estimation of joint stiffness in distinct element model of stiff blocks is discussed.
以节理岩体等效刚度的概念为基础，讨论了离散元刚性块体模型中节理刚度的选取问题。
In the respect of pseudo dynamic test, the author explained the influencing factors of initial inputting stiffness matrix and the equivalent method of mass matrix of model.
在拟动力试验方面，指出了联机试验中初始刚度矩阵的影响因素，建立了模型质量矩阵的等效方法。
Through this equivalent stiffness, the mechanical model of wheel-tract system in the new light train with rubber wheels can is simplified by treated the rubber wheel as a tri-axial spring.
引入等效刚度系数，将轮缘橡胶等效为三向弹簧，从而简化新型轻轨列车系统的力学模型。
Base on the practical data, the virtual structure, which has equivalent stiffness, is built by using inverse problem method. It can substitute the complex structure model in practice.
以实测数据为依据，采用反问题解法构造了与实际结构刚度相当的虚拟结构模型，代替了复杂的实际结构模型。
Base on the practical data, the virtual structure, which has equivalent stiffness, is built by using inverse problem method. It can substitute the complex structure model in practice.
以实测数据为依据，采用反问题解法构造了与实际结构刚度相当的虚拟结构模型，代替了复杂的实际结构模型。
应用推荐