CAJ | 학술논문

飞机载荷主要涉及气动载荷、地面载荷、惯性载荷等，载荷的工况也是琐碎繁多，如何将不同工况、不同部件、不同类型的载荷批量化生成利用NASTRAN进行有限元分析的接口文件，是飞机强度分析输入的关键技术。通过特定的载荷编码技术并结合NASTRAN载荷定义的卡片格式，将某型飞机90种严重工况下的气动节点载荷、地面节点载荷、惯性节点载荷按照一定编码批处理地导入NASTRAN的bdf文件中，分析和计算表明该方法具有良好的载荷识别性能和准确性以及较高的载荷输入效率。
비궤재하주요섭급기동재하、지면재하、관성재하등，재하적공황야시쇄쇄번다，여하장불동공황、불동부건、불동류형적재하비양화생성이용NASTRAN진행유한원분석적접구문건，시비궤강도분석수입적관건기술。통과특정적재하편마기술병결합NASTRAN재하정의적잡편격식，장모형비궤90충엄중공황하적기동절점재하、지면절점재하、관성절점재하안조일정편마비처리지도입NASTRAN적bdf문건중，분석화계산표명해방법구유량호적재하식별성능화준학성이급교고적재하수입효솔。
The Loads of aircraft involved air load、landing load、mass load and so on. Because of the load case is various,how to input different load cases and different component loads and various loads into inferface bulk data with finite element analysis based on NASTRAN Software is pivotal technique. In this paper, according to special code, air load and landing load and mass load on the node force,which are from ninety serious load case in the de-sign of some aircraft,are input BDF file of NASTRAN software. The analyzing and calculating show the method has more distinguished load and more efficient to input load.