کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
769115 1462958 2016 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Fatigue failure analysis of rotor compressor blades concerning the effect of rotating stall and surge
ترجمه فارسی عنوان
تجزیه و تحلیل شکست خستگی از تیغه کمپرسور روتور در مورد اثر متوقف کردن چرخش و افزایش
کلمات کلیدی
کمپرسور محوری تیغه روتور حالت شکستگی خستگی، غرفه دوار، سرریز
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی صنعتی و تولید
چکیده انگلیسی


• Different fatigue fracture mechanisms of the blades were identified.
• The static stress of the blades was analysed using 3D finite element method (FEM).
• The critical fracture stress of the blade at failure position was calculated.
• The effect of the rotating stall and surge on fatigue modes was explained.

Detailed investigation was performed on the effect of the rotating stall and surge on the fatigue failure mechanisms of the axial compressor first stage rotor blades. The static stress distribution of the blades was analysed using three dimensional (3D) finite element method (FEM). The critical fracture stress was calculated using the linear elastic fracture mechanics. Fractographic observation revealed different fatigue fracture modes corresponding to the different fatigue loads. Results demonstrated that during operation two kinds of fatigue loads can occur which are tension-torsion fatigue and bending fatigue. The tension-torsion fatigue stems from the periodic tension-torsion stress induced by the surge, while the bending fatigue load is caused by the rotating stall.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Engineering Failure Analysis - Volume 68, October 2016, Pages 1–9
نویسندگان
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