structural oscillation meaning in Chinese

结构振动

Two statuses of the cracks are assumed under dynamic loading : completely open and completely closed during structural vibration . the structural cracked zone can be simulated by nonlinear element whose stiffness is relative small when the cracks are open and equals to structural virgin stiffness before cracking when the cracks are closed during structural oscillation
结构的开裂区域可以用非线性单元来模拟,这样的非线性单元具有这样的特点:当结构的裂缝处于张开状态下,其刚度比较小,当结构的裂缝处于闭合状态下,开裂部分结构的刚度等于结构开裂前的刚度。