航空物探直升机振动条款适航验证方法研究  

Research on Airworthiness Verification Method for Aerogeophysical Helicopter Vibration Clause

作　　者：尹中伟 林长亮 张思奇 赵春状 王刚 Yin Zhongwei;Lin Changliang;Zhang Siqi;Zhao Chunzhuang;Wang Gang(AVIC Harbin Aircraft Industry Group Co.,Ltd.,Harbin 150066,China;Aviation Military Representative Office of the Representative Bureau of Army Armament Department in Harbin Region,Harbin 150066,China)

机构地区：[1]航空工业哈尔滨飞机工业集团有限责任公司,黑龙江哈尔滨150066 [2]陆军装备部航空军事代表局驻哈尔滨地区航空军事代表室,黑龙江哈尔滨150066

出　　处：《航空科学技术》2021年第11期76-79,共4页Aeronautical Science & Technology

摘　　要：直升机振动条款的适航验证主要考核在合适的速度和功率状态下,直升机的每一个部件均没有过度振动,保证机上各系统工作正常,确保飞行安全。结合某航空物探直升机对适航条款CCAR-29-R1.251和AC 29-2C.251的具体验证过程,从节约条款验证成本和提高审定工作效率的角度出发,提出了基于有限元的相似性分析与飞行试验相结合的验证方法,验证结果得到了民航审查代表的认可,为其他改进改型类直升机的振动条款适航验证工作提供参考。Main assessment of airworthiness verification of helicopter vibration clause is that each part of the rotorcraft must be free from excessive vibration under each appropriate speed and power condition in order to ensure the nor-mal operation of all systems on board and flight safety.By introducing the specific verification process for CCAR-29-R1.251 and AC29-2C.251 of an aerogeophysical helicopter,a verification method combining similarity analysis based on finite element analysis with flight test is proposed,which can save the cost of verification and improve the efficiency of validation.The civil aviation review representative has approved the verification results.The verification method in this paper can provide reference for the verification on vibration terms of other modified helicopters.

关 键 词：振动 适航 直升机 航空物探 验证方法 有限元 

分 类 号：V223[航空宇航科学与技术—飞行器设计]