The robust optimization of assembly structure of engine jacket can effectively improve the aviation stability.The traditional optimization design ignores the unstable factors in manufacturing process,boundary conditions and material characteristics,thereby reducing the robustness of aero-engine.At present,the design of robustness is becoming more and more concerned,and is widely used in the field of aviation.The robustness of the aero engine assembly design is designed,and the Kriging response surface model is used to make the characteristics of the material as an uncertain factor.After optimizing the robustness,the robustness optimization of the assembly of the engine gear structure is compared.The analysis results show that this robust design method has a high accuracy.After robust optimization,the robustness of aero engine gear assembly is improved effectively.%对发动机套齿结构装配结构稳健性优化能够有效提高航空稳定性,传统的优化设计对制造工艺、边界条件和材料特点中的不稳定因素有所忽视,从而降低了航空发动机稳健性.目前,稳健性设计越来越备受关注,并且被广泛应用到航空领域中.在航空发动机装配设计中实现稳健性的设计中,使用Kriging响应面模型,将材料的特点作为不确定因素.在稳健性优化之后,对发动机套齿结构装配的稳健性优化前后进行了对比,分析结果表示,此稳健性的设计方法具有较高的精度,通过稳健性优化之后,航空发动机套齿结构装配的稳健性有效提高.
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