基于Abaqus子模型技术分析透平空心叶片气膜孔应力  

Stress Analysis around Film Cooling Holes of Hollow Blade Turbine Based on the Abaqus Submodel Technology

作　　者：成露[1] 赵仕志[1] 

机构地区：[1]东方电气东方汽轮机有限公司,四川德阳618000

出　　处：《东方电气评论》2014年第4期61-64,共4页Dongfang Electric Review

摘　　要：燃机透平空心冷却叶片的结构异常复杂,叶身表面数量众多,尺寸小巧的气膜孔给应力,计算带来巨大困难。要准确的计算叶身应力,其计算规模将非常巨大,需要消耗大量的计算机资源才能完成。子模型技术通过对几何模型的分解,在保证总体计算规模不太大的同时又可以保证重点部位的计算精度。本研究用Abaqus商业软件的子模型方法分析气膜孔周围应力分布,比较了传统计算方法和子模型方法的计算精度、时间和资源消耗量。The structure of the gas turbine cooling blade is extremely complex. It is difficult to calculate the stress in the blade because of large number of tiny and exquisite film cooling hole. Computation of precise stresses in the blade is usually of huge works, requiring super computer service. Submodel technology divides the geometry model to reduces the work of computation of stresses with precise results at key point or position. The analysis introduced in this paper is to use submodel method of Abaqus software to analyse the film cooling holes in the turbine blade, providing comparison of traditional method with the submodel method with respect to calculation accuracy, time and resources required.

关 键 词：冷却叶片 气膜孔 应力分析 ABAQUS 子模型 

分 类 号：TK471[动力工程及工程热物理—动力机械及工程]