摘要
本文分析了流体动压滑动轴承优化设计中约束条件的模糊性,给出了模糊优化的数学模型,介绍了常用的水平截集解法,提出了一个确定清晰解的综合决策方法.应用这一理论对一柴油机主轴承的优化设计结果表明,模糊优化是有效的,较之普通优化更优越.
This paper analyses the fuzziness of constraints in optimum design of hydrody-namic sliding bearings, gives the mathematical model of fuzzy optimum design, introduced the common method of level section set to solve fuzzy mathematical model, and suggested a decision synthesis method to determine the clear solution.The result of fuzzy optimum design of main bearing of a diesel engine with this theory shows that, the fuzzy optimization is effective, and even more superior compared to common, optimization.
关键词
滑动轴承
优化设计
模糊约束
hydrodynamic sliding bearings
optimum design
fuzzy constraint
decision sythesis
main bearing of diesel engine
