Temperature effect on vibration frequency of aero - engine compressor blade 航空發(fā)動機壓氣機葉片振動頻率與溫度的關系
The dropping block failure analysis of engine compressor blade made by titanium alloy 某壓氣機鈦合金葉片掉塊失效分析
Investigation and analysis of an accident caused by burst of engine compressor stage 4 disk flange 一起發(fā)動機壓氣機四級盤輪緣破裂導致事故的調查和分析
Taking ti alloy tc11 electron beam welded work - piece as research object , which is the conventional material of aero engine compressor blisc , the fatigue damage evolution law of fatigue damage action in the area of welded joint based on damage mechanics theory is analysed , and fatigue damage model , which macro - parameter and micro - damage characteristics are related , with fractal geometry - a new conception of modern mathematics is set up in this paper . it tries to research the measuring method of fatigue fracture fractal dimension and the relationship of fractal damage variable with fatigue life . it also sets up the welded joint fatigue damage fractal evolution equation 本課題以航空發(fā)動機壓氣機葉盤常用材料鈦合金( tc11 )電子束焊構件為研究對象,對焊接接頭的疲勞破壞行為,基于損傷力學理論分析其疲勞損傷演化規(guī)律,應用現(xiàn)代數學的新概念? ?分形幾何學理論,建立宏觀參量與細觀損傷特征相聯(lián)系的疲勞損傷模型,研究疲勞斷口分維數測量方法以及分形損傷變量與疲勞壽命之間的關系,建立焊接接頭疲勞損傷分形演化方程。