Multi-body Dynamic Simulation of the Impact on Cross Deck Pendant
When aircraft is landing on carrier, the impact stress, generated at the moment of tail-hook arresting cross deck pendant, propagates to both ends of the wire rope. To simulate and understand the governing law of this stress wave, a cable element with contact and large displacement functionality was developed in this paper based on absolute nodal coordinate formulation under the framework of multi-body dynamics. And then a multi-body dynamic model of the whole arresting system was built. The results of simulation show that stress peaks are caused by reflection and superposition of transverse wave at deck sheaves and carrier-based aircraft tail-hook, after tail-hook arrests the cross deck pendant. The study further shows that damper sheave installation can reduce stress peak effectively, and replace the rope with lightweight material will also weak the stress peak. Besides, the multi-body model of full-size arresting system built here provides an effective simulation way to assist the design and optimization work of the whole arresting system.
1.Tsinghua University, Beijing 100084;
2.Naval Aviation Institute, Huludao 125001
When aircraft is landing on carrier, the impact stress, generated at the moment of tail-hook arresting cross deck pendant, propagates to both ends of the wire rope. To simulate and understand the governing law of this stress wave, a cable element with contact and large displacement functionality was developed in this paper based on absolute nodal coordinate formulation under the framework of multi-body dynamics. And then a multi-body dynamic model of the whole arresting system was built. The results of simulation show that stress peaks are caused by reflection and superposition of transverse wave at deck sheaves and carrier-based aircraft tail-hook, after tail-hook arrests the cross deck pendant. The study further shows that damper sheave installation can reduce stress peak effectively, and replace the rope with lightweight material will also weak the stress peak. Besides, the multi-body model of full-size arresting system built here provides an effective simulation way to assist the design and optimization work of the whole arresting system.
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