發(fā)布時間：2018-08-18 11:44

【摘要】：面對航天產(chǎn)品的公差分配不合理的問題,提出綜合考慮裝配和制造兩層面的公差分配方案。分析研究對象裝配尺寸鏈的組成環(huán)情況,在零件制造的工序級別以制造成本-公差函數(shù)和質(zhì)量損失函數(shù)為優(yōu)化目標(biāo),以裝配公差要求、工序間加工余量和工序的加工能力為約束條件,建立公差分配的多目標(biāo)優(yōu)化模型。采用基于Pareto機(jī)制的帶精英策略的非支配排序遺傳算法求解公差分配優(yōu)化模型。以某航天企業(yè)電液伺服閥產(chǎn)品中銜鐵組件的制造和裝配為例,驗(yàn)證了模型的適用性和有效性。
[Abstract]:In view of the unreasonable tolerance distribution of spaceflight products, a tolerance distribution scheme considering both assembly and manufacture is proposed. The composition of assembly dimension chain is analyzed. The manufacturing cost tolerance function and mass loss function are taken as the optimization objectives in the process level of parts manufacturing, and the assembly tolerance requirements are taken as the optimization objectives. The multi-objective optimization model of tolerance distribution is established based on the constraints of machining allowance and processing capacity between processes. An undominated sorting genetic algorithm with elite strategy based on Pareto mechanism is used to solve the tolerance allocation optimization model. Taking the manufacture and assembly of the armature assembly in the electro-hydraulic servo valve product of a aerospace enterprise as an example, the applicability and validity of the model are verified.
【作者單位】： 上海交通大學(xué)機(jī)械與動力工程學(xué)院;中國運(yùn)載火箭技術(shù)研究院第十八研究所;
【基金】：火箭產(chǎn)品生產(chǎn)過程一致性量化控制技術(shù)研究項(xiàng)目資助項(xiàng)目
【分類號】：TP18;V46

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