竖向参激作用下刚性滑动体系响应的稳态概率分布

摘要

By means of the equivalent nonlinear system met hod, the analytical solution of the joint probability density function of steady -state responses of Coulomb sliding friction rigid structures to vertical Gauss ian white noises is derived. The result displays that the horizontal steady-sta te vibration is little affected by vertical Coulomb damping parametric excitatio ns.%运用等效非线性系统法推导了库伦摩擦刚性 滑移结构在竖向高斯白噪声地面作用下响应的稳态合概率密度函数的解析解。结果表明， 竖向阻尼参激对水平稳态振动的影响不大。