控制学科在环的主动悬架多学科设计优化

基于多学科设计优化的思想，提出一种控制学科在环的多学科设计优化方法，将控制学科纳入系统的优化回路内，可以充分考虑系统的结构设计和控制学科之间的协同作用，以实现更好的整体优化效果.以主动悬架的设计优化为例，建立了1/4车辆主动悬架模型和LQG控制器模型，并基于多学科可行法的优化框架，进行多学科分析，对结构参数和控制器参数同时进行优化.优化结果表明，该方法能协调悬架动力学和控制学科之间的耦合关系，获取整体最优解.优化后的主动悬架在保证悬架工作空间和轮胎变形在一定的范围内，且不消耗更多能量的前提下，使车身加速度均方根值降低了27%. 

Multidisciplinary Design Optimization of Active Suspension with Control Discipline in Loop

Taking the design and optimization of active suspension as an example, based on the idea of multidisciplinary design optimization, a multidisciplinary design optimization method was proposed with the control discipline in loop, bring the control discipline into the optimization loop of the system. To achieve better overall optimal results, the collaboration between the system''s structural design and control discipline was fully considered. And a quarter-vehicle active suspension model and the LQG controller model were established. Based on the optimization framework of the multidisciplinary feasibility method, multi-disciplines analysis was conducted, and the suspension parameters and controller parameters were optimized at the same time. The optimization results show that this method can coordinate the coupling relationship between suspension dynamic and control discipline to obtain the global optimal solution. The optimized active suspension can reduce the root of mean square (RMS) of vertical body acceleration by 27% under the premise of not consuming more energy, and can ensure that the suspension''s working space and tire deformation are within a certain range.