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Development of An Aircraft Landing Gear Fatigue Test System

Author: ZhuJinJie
Tutor: NieHong
School: Nanjing University of Aeronautics and Astronautics
Course: Aircraft design
Keywords: Aircraft landing gear Fatigue Test System Test Bench Fixture Fatigue load spectrum Fatigue Life
CLC: V216.8
Type: Master's thesis
Year: 2009
Downloads: 207
Quote: 1
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Abstract


Fatigue Properties of aircraft landing gear aircraft design is an important part . Fatigue testing ground for landing gear fatigue properties of great significance . Perfect test system design is the protection of the successful completion of testing , therefore, the design of a reliable aircraft landing gear ground fatigue test system has important significance and practical value . Based on the test gear and test the mission statement of research, from the true picture of the whole picture of the landing gear ground fatigue process , was proposed aircraft landing gear ground fatigue test system design and demonstrate the feasibility of this . Modify the test bench system architecture to meet the requirements of this test and the finite element method and MSC.Patran / Natran Taiwan shelf software were mechanical characteristics . Static analysis to verify the bench more serious parts of the force strength . Modal analysis , calculation and analysis of the test bench the natural frequencies and mode shapes , and details of the gantry position has been modified. The test fixture part of the system design . In order to simulate the landing gear ground under load situation , combined with the test requirements and test mission statement dimensions on the characteristics of the landing gear , designed to meet the test requirements of the fixture ; through the mission statement on the landing gear fatigue load spectrum to calculate all fixtures the maximum load, verify fixture static strength ; preparation of a fixture fatigue load spectrum , according to the law of the nominal stress SN curve method and MSC.Fatigue software safety life of each fixture certification, verification of the designed fixture to meet the landing gear ground fatigue test systems.

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CLC: > Aviation, aerospace > Aviation > Basic theory and experiments > Aircraft ground tests > A variety of test equipment and instruments
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