【摘要】 采用在双体单自由度结构间设立Maxwell型非线性被动控制单元的最优参数表达式,并基于等效双体单自由度体系求得了相邻结构间阻尼器优化零频率阻尼系数与松弛时间。运用实数编码的遗传算法求解了等式约束条件下非线性规划问题,避免了使用罚函数,确定了相邻结构间优化阻尼分布。通过数值分析表明了优化算法的有效性。更多还原

【Abstract】 The optimal parameter expression of the Maxwell model-defined element is adopted and which is used to interconnect two single-degree-of-freedom systems for the nonlinear passive control.The optimal relaxation time and optimal damping coefficient at zero frequency of controller is obtained based on the two equivalent single degree of freedom systems.The Genetic Algorithm with real number code is used to solve nonlinear programming problem with equality constraints,avoids the use of the penalty function and determine the optimal distribution of damping.The numerical results prove the validity of the algorithm.更多还原