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| Stress Analysis and Structure Optimization of Main Landing Gear Frame Front Fork Based on Workbench |
| LI Jing, ZHANG Xianyu |
| (Aviation University of Air Force，Changchun 130022，China） |
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Abstract Based on main landing gear frame front fork root of a certain aircraft multiple occurrences of fatigue crack,
the front fork as main landing gear frame key-module, seriouly influence safety of the landing gear. Through stress analysis
of the structure using ANSYS Workbench simulation softwarely, weak positions of the frame front fork were obtained, and
its structure and comparative analysis were optimized by combination of topology optimization and goal driven optimization
method. Obtained weak parts were in conformity with the actual usage, structure is reasonable, stress obviously improved,
and weight decreased by 17.3% than before optimization.
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2017, 
