CAJ | 학술논문

通过有限元分析软件ANSYS Workbench对飞机舵机作动器进行了力学分析建模，通过引入非线性接触设置模拟了作动器筒体的实际工作的接触效应，分析了结构在复杂工作状态下的局部应力分布，并且根据第四强度理论校核了结构的静强度设计；然后，在静力分析的基础上，根据第一强度理论确定结构的疲劳危险点，并结合名义应力法和线性累积损伤理论估算了结构在设计疲劳谱下的疲劳寿命。本文的分析流程可以给工程设计单位在处理类似复杂航空结构的静强度与安全寿命设计问题方面提供参考。
통과유한원분석연건ANSYS Workbench대비궤타궤작동기진행료역학분석건모，통과인입비선성접촉설치모의료작동기통체적실제공작적접촉효응，분석료결구재복잡공작상태하적국부응력분포，병차근거제사강도이론교핵료결구적정강도설계；연후，재정력분석적기출상，근거제일강도이론학정결구적피로위험점，병결합명의응역법화선성루적손상이론고산료결구재설계피로보하적피로수명。본문적분석류정가이급공정설계단위재처리유사복잡항공결구적정강도여안전수명설계문제방면제공삼고。
Mechanical Analysis modeling is applied in this paper to analyze the aircraft rudder actuator by means of finite element analysis software ANSYS Workbench. Actual work loads and constrain conditions of Actuator Cylinder are exactly simulated through introduction of nonlinear contact pairs, and accurate analysis of the Actuator Cylinder structure is performed under the complicated work condition to obtain local stress distribution. Meanwhile we have checked static intensity on the basis of Fourth Strength Theory. Then based on static analysis we find fatigue danger point according to First Strength Theory. At last, fatigue life of the structure under designed fatigue spectrum is estimated by adopting Nominal Stress Method and Miner Theory. The analysis process of this paper provides some theoretic reference value about static strength and safety life design related to similar complex aircraft structure for engineering design academy.