Topology Optimization Design and Strength Analysis of the Hoist Bracket for Rescue Helicopters  被引量:2

Topology Optimization Design and Strength Analysis of the Hoist Bracket for Rescue Helicopters

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作  者:刘志杰 王礼钊 熊伟 

机构地区:[1]Transportation Equipments and Ocean Engineering College,Dalian Maritime University

出  处:《Journal of Shanghai Jiaotong university(Science)》2016年第4期494-498,共5页上海交通大学学报(英文版)

基  金:the Science and Technology Project of Ministry of Transport of China(No.2013328225080);the Natural Science Foundation of Liaoning Province of China(No.2015020121);the Research Fund for the Doctoral Program of Higher Education of China(No.20122125120013);the Fundamental Research Funds for the Central Universities of China(Nos.3132016069 and 3132016354)

摘  要:The hoist bracket links the rescue hoist with the helicopter cabin, and its structure design greatly affects the operation convenience and safety of the hoistman and lifeguard in the rescue process with a helicopter.This paper firstly builds the force model of the hoist and bracket, and gives five kinds of typical working conditions as the design ones of the bracket. Then this paper puts forward a design process of the hoist bracket based on the topology optimization and strength analysis with the 3D modeling and finite element analysis. This design process can make the bracket's structure lightweight by achieving the optimal material layout under the conditions of maximizing the static stiffness or minimizing the compliance of the bracket. And this improves the dynamic performance of the helicopter, and reduces the fuel consumption and cost under the strength constraints. Finally,taking the design of the hoist bracket used in a rescue helicopter as an example, this paper illustrates the proposed model and method. The analysis results show that the mass of the hoist bracket decreases by 12.5% while the static stiffness of the hoist bracket is achieved. The optimization design results meet the strength requirements of the hoist.The hoist bracket links the rescue hoist with the helicopter cabin, and its structure design greatly affects the operation convenience and safety of the hoistman and lifeguard in the rescue process with a helicopter. This paper firstly builds the force model of the hoist and bracket, and gives five kinds of typical working conditions as the design ones of the bracket. Then this paper puts forward a design process of the hoist bracket based on the topology optimization and strength analysis with the 3D modeling and finite element analysis. This design process can make the bracket's structure lightweight by achieving the optimal material layout under the conditions of maximizing the static stiffness or minimizing the compliance of the bracket. And this improves the dynamic performance of the helicopter, and reduces the fuel consumption and cost under the strength constraints. Finally, taking the design of the hoist bracket used in a rescue helicopter as an example, this paper illustrates the proposed model and method. The analysis results show that the mass of the hoist bracket decreases by 12.5% while the static stiffness of the hoist bracket is achieved. The optimization design results meet the strength requirements of the hoist.

关 键 词:hoist bracket static strength analysis topology optimization rescue helicopter 

分 类 号:TU318[建筑科学—结构工程] U661.43[交通运输工程—船舶及航道工程]

 

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