کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4976792 1451836 2018 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A method for gear fatigue life prediction considering the internal flow field of the gear pump
ترجمه فارسی عنوان
یک روش پیش بینی عمر خستگی دنده با توجه به جریان جریان داخلی پمپ دنده
کلمات کلیدی
پمپ دنده ای، جفت مایع جامد، خستگی تماس پیشگویی زندگی،
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر پردازش سیگنال
چکیده انگلیسی
Gear pump is the most widely used volume type hydraulic pump, and it is the main power source of the hydraulic system. Its performance is influenced by many factors, such as working environment, maintenance, fluid pressure and so on. It is different from the gear transmission system, the internal flow field of gear pump has a greater impact on the gear life, therefore it needs to consider the internal hydraulic system when predicting the gear fatigue life. In this paper, a certain aircraft gear pump as the research object, aim at the typical failure forms, gear contact fatigue, of gear pump, proposing the prediction method based on the virtual simulation. The method use CFD (Computational fluid dynamics) software to analyze pressure distribution of internal flow field of the gear pump, and constructed the unidirectional flow-solid coupling model of gear to acquire the contact stress of tooth surface on Ansys workbench software. Finally, employing nominal stress method and Miner cumulative damage theory to calculated the gear contact fatigue life based on modified material P-S-N curve. Engineering practice show that the method is feasible and efficient.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Mechanical Systems and Signal Processing - Volume 99, 15 January 2018, Pages 921-929
نویسندگان
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