作　　者： (张丰收）; (叶献辉）; (吴万军）; (姜乃斌）;

机构地区： 中国核动力研究设计院核反应堆系统设计技术重点实验室

出　　处： 《核动力工程》 2017年第S1期27-30,共4页

摘　　要： 通过建立蒸汽发生器干燥器结构有限元分析模型,完成了干燥器结构振动特性分析和气动噪声分析研究。通过振动特性分析确定干燥器内部结构薄弱板部件,对干燥器薄弱板部件进行气动噪声分析研究,包括最大静压和最大压力功率谱密度分析研究,探究干燥器结构在气动噪声载荷下的结构强度及疲劳特性。研究结果表明:干燥器结构主要的薄弱板部件是竖直分隔板和均汽网结构;最大静压值和最大压力功率谱密度研究中,竖直分隔板、均汽网结构和声压力波回传方向板部件最大应力强度出现在均汽网结构位置,但小于限值,满足RCC-M规范要求。 The finite element model of steam generator secondary separator was developed, and the analysis of the structural vibration characteristics and the aerodynamic noise of the steam dryer was completed. The frail plate part of steam dryer was found based on the vibration study. In the aerodynamic noise section, the maximum static pressure and pressure power spectral density(PSD) were included. Structural strength and fatigue characteristics were studied under the aerodynamic loads. The results demonstrated that the main frail plates are the vertical partition plate and perforated plate at the steam dryer. The maximum stress intensity appears at the perforated plate. But it is less than the limit value, and meets the requirement of RCC-M specifications.

关 键 词： 干燥器 振型 气动噪声 随机振动 功率谱密度