基于遗传算法的摆线针轮减速器模糊稳健设计

发布时间：2018-06-03 18:43

本文选题：模糊稳健设计 + 摆线针轮减速器　；参考：《南华大学》2011年硕士论文

【摘要】：稳健设计是使所设计的产品(或工艺)无论在制造和使用中当结构参数发生变差,或是在规定寿命内结构发生老化和变质(在一定范围内)时都能保持产品性能稳定的一种工程设计方法。田口稳健设计在国内又称为三次设计,它是以正交表为基本工具,用误差因素模拟各种干扰,以信噪比作为衡量产品质量稳定性的指标,并尝试用廉价的零部件组装质量上乘、成本低廉、性能稳定可靠的产品。模糊稳健设计是稳健设计和模糊优化设计的有机结合。本文首先对遗传算法、模糊稳健设计、摆线针轮减速器的基本理论进行了全面地介绍,然后根据要求建立了摆线针轮减速器的多目标模糊优化数学模型,运用MATLAB中遗传算法相关函数对模型进行求解,利用参数设计对优化结果作进一步处理,根据实际情况合理地选择可控因素和误差因素的个数及其水平数,建立内表和外表,计算内表中不同实验方案下各个目标函数的信噪比(SN比),最后采用模糊综合评判法对计算出的信噪比进行模糊综合评判,从而得出可控因素的最佳参数组合。最后,把通过模糊稳健设计的摆线针轮减速器的优化结果和传统设计结果、一般优化设计结果进行比较,可以看出,模糊稳健设计优化结果比传统设计结果、一般优化设计结果更佳,并且具有稳健性,所以,模糊稳健设计方法具有现实意义,可以进一步推广使用。
[Abstract]:Robust design is designed to make the product (or process) worse when the structural parameters become worse in manufacture and use, Or a kind of engineering design method which can keep the stability of product performance when the structure is aging and deteriorating (within a certain range) within the specified life span. Taguchi robust design is also called cubic design in China. It uses orthogonal table as the basic tool, simulates all kinds of interference with error factors, takes signal-to-noise ratio as the index to measure product quality stability, and tries to assemble superior quality with cheap parts. Low cost, stable and reliable performance of the product. Fuzzy robust design is an organic combination of robust design and fuzzy optimal design. In this paper, the basic theories of genetic algorithm, fuzzy robust design and cycloidal needle wheel reducer are introduced comprehensively, and then the multi-objective fuzzy optimization mathematical model of cycloidal needle wheel reducer is established according to the requirements. The model is solved by genetic algorithm correlation function in MATLAB, the optimization result is further processed by parameter design, and the number of controllable factors and error factors and their horizontal numbers are reasonably selected according to the actual situation, and the inner table and appearance are established. The signal-to-noise ratio (SNR) of each objective function under different experimental schemes in the inner table is calculated. Finally, the fuzzy comprehensive evaluation method is used to evaluate the calculated SNR, and the optimal parameter combination of controllable factors is obtained. Finally, by comparing the optimization result of cycloidal needle wheel reducer with the traditional design result and the general optimal design result, we can see that the fuzzy robust design optimization result is better than the traditional design result. General optimal design results are better and more robust, so fuzzy robust design method has practical significance and can be further popularized.
【学位授予单位】：南华大学
【学位级别】：硕士
【学位授予年份】：2011
【分类号】：TH132.46

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