基于蚁群优化最小二乘支持向量机模型的边坡稳定性分析

液固混合介质隔振器基于一种全新的工作机理，具有优良的隔振系统动力学特性. 混合介质由一类几乎不可压缩液体和许多可压缩的固体单元混合而成. 当振动、冲击发生时, 液体将动压力瞬间传递到所有单元体上, 使它们同时参与变形,从而有效隔离振动,大幅度吸收、损耗冲击能量; 若设计得当,这类隔振器可同时具有卓越的隔振和缓冲性能. 以空心橡胶球作为固体单元体, 分析了该单元体在有限变形情况下的变形规律, 分析了隔振器的非线性刚度特性; 采用MTS液压伺服试验系统进行了测试验证, 理论分析和试验结果具有较好的一致性. 建立了系统的非线性动力学方程, 采用多尺度摄动法获得了系统的频响特性, 发现系统具有软弹簧非线性动力学特性, 并在试验中得到了证实; 因为弹性恢复力中存在位移平方项, 通过试验和数值仿真进一步验证了系统响应的非对称性.

SLOPE STABILITY ANALYSIS USING LEAST SQUARE SUPPORT VECTOR MACHINE OPTIMIZED WITH ANT COLONY ALGORITHM

The relationship between slope stability and influencing factors is complex and nonlinear. Support vector machine (SVM) is used to build the nonlinear relationship.  The parameters of SVM are optimized  with a continuous ant colony algorithm (CACA). Thus the ACAC-SVM is proposed for forecasting slope stability. Slope of right-bank spandrel groove  at Jinping is forward slope.  A majority of the slope surface is bare and comprised of  bedrock. the natural slope is comprised of marbleand stability now. The CACA-SVM is used to analysis the stability of the slope of right-bank spandrel groove at  Jinping.  The results are in good agreement with the actual data, which indicates that the CACA-SVM can be well applied to the analysis of slope stability