| 摘要: |
| 【目的】针对铣削加工中铣削切削参数的非线性优化，研究了铣削参数优化求解问题。【方法】以最大生产率为目标建立了铣削切削参数优化数学模型，将试验优化设计中均匀设计的思路引入优化过程，根据均匀设计原理，在优化模型的设计变量空间内均匀分布一系列点，然后将可行域内的上述系列布点作为优化计算的系列初始点，并运用MATLAB工具箱函数分别开始进行优化计算。【结果】提出了一种基于均匀设计变量的铣削用量优化方法，得到了优化模型的一系列局部最优点，比较所有局部最优点的最优值，即认为在一定程度上获得了该优化问题的全局最优解。实例计算表明，单工序切削时间减少了5.72 s,表明该方法对铣削用量的优化是可行的。【结论】采用均匀布点的铣削用量优化求解方法可求取非线性多峰值函数的全局最优解。 |
| 关键词: 铣削加工 铣削用量 均匀设计 参数优化 |
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| 基金项目:陕西省科技攻关项目“多功能旱作果园作业机械技术研究”（14210110） |
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| Machining parameter optimization of milling process based on uniform design |
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| Abstract: |
| 【Objective】In view of the milling processing in the milling cutting parameter non-linear-optimization,this article-studied the milling parameter optimization solution question.【Method】The milling cutting parameter optimization mathematical model was established by taking the greatest productivity as the goal,some ideas of uniform design in the test design were introduced into optimized process.A series of uniformly distributed points were generated by the principle of the uniform design in variable design space.These points were regarded as a series of start points of the optimization model.The MATLAB toolbox function was chosen to compute.【Result】A new optimization method of milling parameter based on uniform design was discussed.A series of local minimum values can be gained.Comparison found the best value of all local minimum values,the value was thought as the global minimum to some degree.The example computation showed that the single working procedure cutting time reduced 5.72 s,indicating this method is feasible in the milling parameter optimization.【Conclusion】Using the uniform distribution of points the optimization of the milling parameters is possible to seek overall optimal solution to the non-linear multi-peak value function. |
| Key words: milling processing milling parameter uniform design parameter optimization |
