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Fatigue Analysis for the Gear of 59-Tank Transmission System

Author: LiDeJian
Tutor: ZhangXiaoLi
School: Dalian University of Technology
Course: Mechanical and Electronic Engineering
Keywords: Gear Fatigue Life Prediction Tank Miner's Rule Finite Element Analysis
CLC: TJ811
Type: Master's thesis
Year: 2007
Downloads: 526
Quote: 9
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Abstract


Domestic and international statistics show that engineering machinery and equipment accounted for fatigue damage occurred 60% -90% , showing that fatigue failure of the mechanical structure the most common form . Therefore, we must pay attention to withstand the mechanical structure of various types of cyclic loading fatigue failures. Master the mechanical structure of the damage law , estimate the fatigue life, in the engineering field has a very important significance. Tank is the main weapon of armored equipment, is a major ground war attacking force . Because poor conditions of service tanks , tank parts in service during faults have occurred . Tank gear box connected to the tank engine and gearbox , tank transmission is a key component , the use of its component damage rate is higher than other parts. Tanks, transmission gear , mainly subjected to cyclic loading , the main failure mode is fatigue failure , broken teeth failure will inevitably occur , often due to the gear box of broken teeth and damaged. The occurrence of failure will not only affect the normal military training , but also brought no small economic loss. Conditions of service under the tank , make accurate stress analysis , so as to arrive transmission gear of the force deformation and grasp the damage law , estimate the fatigue life, it is very necessary , but also for tank gear box inspection , repair and maintenance to provide the necessary data. The subjects of cumulative damage theory, 59 tanks , for example, the tank gear box were fatigue analysis and estimate the life of the gear . According tanks in service , and reasonably determine the typical operating conditions , determine its load spectrum , the establishment of gear finite element analysis model , the use of Miner fatigue damage theory and SN fatigue curves , using the finite element analysis method of transmission gear fatigue damage and fatigue life was predicted, and developed based on the results of a suitable maintenance period .

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CLC: > Industrial Technology > Arms industry > Tanks, warships, aircraft, aerospace,weapons > Chariot > Tanks, armored vehicles
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