织物增强的飞艇蒙皮强度分析测试  

STRENGTH ANALYSIS AND TEST OF FABRIC REINFORCED AIRSHIP ENVELOPE

作　　者：刘扬 赵海涛[1] 张俊[2] 高成军 陈吉安[1] LIU Yang;ZHAO HaiTao;ZHANG Jun;GAO ChengJun;CHEN JiAn(School of Aeronautics and Astronautics,Shanghai Jiaotong University,Shanghai 200240,China;The 23rd Institute of China Electronics Technology Corporation,Shanghai 200437,China;Space Structure Research Center,Shanghai Jiaotong University,Shanghai 200240,China)

机构地区：[1]上海交通大学航空航天学院,上海200240 [2]中国电子科技集团公司第二十三研究所,上海200437 [3]上海交通大学空间结构研究中心,上海200240

出　　处：《机械强度》2023年第3期613-619,共7页Journal of Mechanical Strength

摘　　要：为研究飞艇蒙皮材料强度性能及超压承载对其剩余强度的影响,设计了蒙皮材料单轴和双轴拉伸的试件形式和实验方案,并借助于高速摄像机分析飞艇破坏情况。基于实验数据,拟合出飞艇承载气压时蒙皮单轴拉伸强度曲线、蒙皮双轴拉伸时材料的经纬向强度包络线。实验结果表明,单轴拉伸时,蒙皮的剩余强度与飞艇承载气压表现出负向相关关系;双轴拉伸时,蒙皮承载强度受经向和纬向强度综合影响。该实验分析了飞艇蒙皮的失效情况,可为其强度预报提供实验依据。In order to study the strength performance of the airship envelope and the influence of overpressure bearing on its residual strength,the sample forms and experiments plans for the uniaxial and biaxial tensile of the envelope material were designed,and the tearing situation of the airship was analyzed with the help of a high⁃speed camera.Based on the experimental data,fitted the uniaxial tensile strength curve when the airship bears air pressure,and the longitudinal and latitudinal strength envelope line of the material when it was biaxially stretched.The experimental results demonstrate that there is a negative correlation between the residual strength of the envelope and the airship bearing air pressure when uniaxially stretched,the bearing strength of the envelope is comprehensively affected by the longitudinal and latitudinal strengths when biaxially stretched.This experiment also analyzes the failure situation of the airship envelope,which can provide an experimental guidance for its strength prediction.

关 键 词：蒙皮 飞艇 撕裂破坏 强度测试 单双轴拉伸 

分 类 号：V274[航空宇航科学与技术—飞行器设计]