制动电阻器多学科设计优化  

Multidisciplinary Design Optimization of Electric Braking Resistor

作　　者：谢常清[1] 鄂加强[1] 彭雨[1] 龚金科[1] 赵延明[2] 

机构地区：[1]湖南大学机械与汽车工程学院 [2]湖南科技大学信息与电气工程学院,湖南湘潭411201

出　　处：《铁道学报》2008年第5期119-124,共6页Journal of the China Railway Society

摘　　要：为了确保机车、动车制动电阻器整体性能提高,以某型号特种内燃动车制动电阻器传热性能、经济性能、质量以及抗热冲击性能为目标函数建立多学科设计优化模型,并充分考虑各学科之间的耦合效应,采用自适应混沌优化算法对多学科设计优化模型进行求解。多学科设计优化结果表明,该制动电阻器传热性能增加11.51%,设计成本下降7.05%,质量减少7.21%,抗热冲击性能增加15.50%,整体性能提高9.97%。优化前后特种内燃动车制动电阻器的安全温度对比实验表明,制动电阻片的安全温度由优化前的500℃提高到优化后的550℃。In order to guarantee the improving of the global performance of the electric braking resistor in locomotives and rail motor cars, the MDO model is established with the heat transfer performance, economic performance, weight and thermal-shock resistance performance of the electric braking resistor as the objective functions. Taking the multidisciplinary coupling effect into full consideration, the MDO model is solved by the self-adaptive chaotic optimization algorithm. The results indicate that the heat transfer performance is raised by 11.51%, the design costs are reduced by 7. 05%, the weight is lightened by 7.21%, the thermal-shock resistance performance is enhanced by 15.50%, and the global performance of the electric braking resistor is improved by 9.97%. Results of the safety temperature experiments reveal that the safety temperature of the electric braking resistor is 500℃ before multidisciplinary optimization and is raised to 550℃ after multidisciplinary optimization.

关 键 词：制动电阻器 热冲击 多学科设计优化 自适应混沌优化算法 

分 类 号：U260.355[机械工程—车辆工程]