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首页> 外文期刊>Journal of intelligent material systems and structures >Development and evaluation of hybrid seat cushions for helicopter aircrew vibration mitigation
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Development and evaluation of hybrid seat cushions for helicopter aircrew vibration mitigation

机译：直升机机组减振混合座垫的开发与评估

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This article investigates the use of novel energy-absorbing materials to reduce vibration transmitted through helicopter pilot seat cushions. A type of engineered material known as the hybrid air cushioning system was integrated into the design of helicopter seat cushions in addition to conventional foam materials. The prototype seat cushions were preliminarily evaluated as the bottom seat cushion on a Bell-412 nonarmored pilot seat through mechanical shaker tests. The promising cushion designs were further evaluated on a Bell-412 helicopter through extensive flight tests. The pilot whole-body vibration levels were assessed in accordance with ISO 2631-1:1997 standard. The flight test results demonstrated that the prototype cushions were able to reduce significantly the pilot whole-body vibration. Therefore, the integration of hybrid air cushioning system with Bell-412 seat cushion can serve as a low-cost solution to mitigate the vibration levels transmitted to helicopter pilots.
机译：本文研究了新型吸能材料的使用，以减少通过直升机飞行员座垫传递的振动。除常规泡沫材料外，一种称为混合空气缓冲系统的工程材料也被集成到直升机座垫的设计中。通过机械振动筛测试，初步将原型座垫评估为Bell-412无装甲飞行员座椅的底部座垫。通过广泛的飞行测试，在Bell-412直升机上进一步评估了有前途的坐垫设计。根据ISO 2631-1：1997标准评估飞行员的全身振动水平。飞行测试结果表明，原型座垫能够显着降低飞行员全身的振动。因此，混合气垫系统与Bell-412座垫的集成可以作为一种低成本解决方案，以减轻传递给直升机飞行员的振动水平。

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