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Firstly, this paper conducted the failure modes and effects analysis (FMEA) for the certain hydraulic system; secondly, it calculated the impact load of the hydraulic system when it works; and based on above results of FMEA and the calculation of impact load, it has made the finite element analysis to key components in Abaqus which caused most failures. Finally, it optimized the design of the sealing...
As the lock ring of the door lock mechanism has a complex structure which needs to be tough enough to withstand heavy load during the high-load-factor maneuver of the aircraft. Special attention should be paid to its strength issue. In order to assess its strength reliability, this paper firstly demonstrated a strength analysis with a simplified finite element model using Patran and MD Nastran. Then...
First, the seal reliability function of the O-ring, that is the maximum contact stress between O-ring and plunger must be greater than the fluid pressure, is established, then on the basis of the nonlinear constitutive equation Mooney-Rivlin of rubber material, the finite element model of the O-ring is built using commercial software ABAQUS, according to the finite element model, the distribution...
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