某型水陆两栖飞机主结构铝合金材料选用分析

材料选用是飞机研制过程中的一项重要内容,选用材料的好坏直接影响飞机性能的优劣,飞机选材需要考虑多个因素。某型水陆两栖飞机按照疲劳、损伤容限设计原则进行结构设计。通过对某型水陆两栖飞机载荷工况和服役环境的分析,结合飞机基本选材原则和某型水陆两栖飞机结构设计对材料的静强度性能,疲劳、损伤容限性能,耐腐蚀性能等的要求,综合考虑铝合金材料特点、适航性、成本及供货等因素,最终提出某型水陆两栖飞机结构的铝合金材料选材方案。

Analysis of Choosing Aluminum on Mainstructure of Amphibious Aircraft

Choosing material is important during the development of an aircraft and the materials which are appropriate or not influence the performance of the aircraft. So many factors should be considered. The amphibious aircraft structure design is in accordance with fatigue and damage tolerance design. This paper analyses the load condition and service circumstance of the amphibious aircraft and the requirement of static strength properties, fatigue and damage tolerance properties and corrosion resistance properties, considers about factors such as aluminum characters, airworthiness, cost and material supply, then the scheme of choosing aluminum on structure of amphibious aircraft is presented.