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自润滑关节轴承是航空设备的关键部件之一,当前航空用精密级产品主要依赖进口,其技术瓶颈为内外圈成形装配工艺。该文基于非接触定向模压工艺原理,提出了整体式外圈自润滑关节轴承单边模压成形工艺;利用数值模拟技术对模压成形工艺设计与分析;利用最优拉丁超立方抽样法对设计空间抽样,再采用多目标遗传算法,对模压成形的设计参数和工艺参数进行工艺优化计算。结果表明,应用数值模拟与优化计算进行工艺设计,可以获得自润滑关节轴承单边模压成形工艺的设计参数与工艺条件,从而满足自润滑关节轴承制造的质量要求,游隙均匀、接触压力分布均匀、衬垫无损伤。
Self-lubricating spherical plain bearings are one of the key components of aviation equipment. At present, precision-grade aviation products mainly rely on imports, and the technical bottleneck is the forming and assembling process of inner and outer rings. Based on the principle of non-contact oriented molding process, a one-side compression forming process of the integral outer ring self-lubricating spherical plain bearings was proposed. The design and analysis of the molding process was carried out by using the numerical simulation technique. The design space was sampled by the optimal Latin hypercube sampling method , And then using multi-objective genetic algorithm, the molding process of the design parameters and process parameters optimization calculation. The results show that the design parameters and process conditions of single-side compression forming process of self-lubricating spherical plain bearings can be obtained by numerical simulation and optimization calculation, so as to meet the quality requirements of self-lubricating spherical plain bearings with uniform clearance and uniform contact pressure distribution , Liner without damage.