提供全套毕业论文图纸,欢迎咨询毕业设计(论文)题目:燃气轮机涡轮叶片受力特性计算及分析 学 生 姓 名: 张 海 诺学 号: 班 级: 专 业: 指 导 教 师: 2025 年 03 月燃气轮机涡轮叶片受力特性计算及分析 学 生 姓 名: 学 号: 班 级: 所在院(系): 指 导 教 师: 完 成 日 期: 燃气轮机涡轮叶片受力特性计算及分析摘 要涡轮叶片是燃气轮机的主要零部件之一,它在高温、高压、高速、恶劣且相当复杂的环境下工作,承受着离心力、气动力、温度应力等循环交变载荷与动载荷作用,叶片容易发生疲劳破坏。而引起涡轮叶片振动疲劳失效的主要因素是气动载荷激振力,因此本文就涡轮叶片气动载荷进行了讨论分析。首先推导了燃气轮机涡轮叶片气动载荷激振力的表达式,并采纳 MATLAB 仿真技术对气动激振力进行了分析得到的载荷谱,及对周向力进行了谐波分析,得到了其频谱图和各阶谐波重量。关键字:燃气轮机;涡轮叶片;气动载荷;载荷谱;频谱图Calculation and analysis of mechanical characteristics of gas turbine blade AbstractTurbine blade is one of the main components of gas turbine , it working in high temperature,high pressure,high speed,bad and very complex environment, under the centrifugal force,aerodynamic force,temperature stress and other cyclic alternating load and dynamic load,prone to fatigue failure of blade. And the main factors causing the failure of turbine bladevibration fatigue is the aerodynamic load excitation force,so this paper turbine blade aerodynamic load was analyzed. First , the expression of gas turbine blade aerodynamic loadexcitation force is derived,and the use of MATLAB simulation technology of pneumatic vibration force are analyzed to get the load spectrum , and the circumferential makes harmonic analysis , obtained its spectrum and harmonic components.Key words : Gas turbine ; Turbine blade ; The aerodynamic load ; Load spectrum;Spectrum目 录1 概论..................................................................