面向复材构件的临时紧固件安装工艺测试与验证装置设计  

Design of Testing and Verification Device for Installation Technology of Temporary Fasteners to Composite Components

作　　者：凡志磊 严晨[2] 黄稳 王华 FAN Zhilei;YAN Chen;HUANG Wen;WANG Hua(COMAC Shanghai Aircraft Manufacturing Co.,Ltd.,Shanghai 201324,China;Shanghai Key Laboratory of Digital Manufacture for Thin-Walled Structures,Shanghai Jiao Tong University,Shanghai 200240,China;Shanghai Institute of Technology,Shanghai 201418,China)

机构地区：[1]中国商飞上海飞机制造有限公司,上海201324 [2]上海交通大学上海市复杂薄板结构数字化制造重点实验室,上海200240 [3]上海应用技术大学,上海201418

出　　处：《航空制造技术》2023年第3期93-99,共7页Aeronautical Manufacturing Technology

基　　金：国家自然科学基金(51775350)。

摘　　要：临时紧固件过大的夹紧力会给复材孔周带来损伤,严重影响结构的静态承载及动态疲劳性能,航空复材装配现场需要对临时紧固件的安装夹紧力进行控制。因此针对临时紧固件气动安装工具输出扭矩的波动性特点,设计了一种面向复材构件的临时紧固件安装工艺测试与验证装置,以探讨其安装工艺与夹紧力之间的关系。通过电气比例阀控制气动安装工具的输入气压,通过扭矩传感器和夹紧力传感器监测临时紧固件安装过程中的扭矩和夹紧力。对所搭建的装置进行了测量系统分析,利用皮尔逊相关系数公式验证了其重复性,并用Bessel公式计算了其不确定度。结果表明,所设计的装置可以用于复材构件临时紧固件的安装工艺测试与验证。这将为航空复材装配现场的临时紧固工艺的制定提供方法和依据。Excessive clamping force of temporary fasteners will cause damage to the composite holes and seriously affect the static load-bearing and dynamic fatigue performance of the structure.The clamping force of the temporary fastners needs to be controlled at the aviation assembly site.Therefore,in view of the fluctuation characteristics of the output torque of the temporary fasteners pneumatic installation tool,a test and verification device for the installation of temporary fasteners for composite structures was designed to explore the relationship between the installation process and the clamping force.The input air pressure of the pneumatic installation tool is controlled by an electric proportional valve,and the torque and clamping force during the installation of temporary fasteners are monitored by a torque sensor and a clamping force sensor.The measurement system of the built device is analyzed,the repeatability is verified by the Pearson correlation coefficient formula,and the uncertainty is calculated by the Bessel formula.The results show that the designed device can be used to test and verify the installation process of temporary fasteners for composite components.This will provide a method and basis for the formulation of temporary fastening technology at the assembly site of aeronautical composite materials.

关 键 词：复合材料 临时紧固件 安装工艺 扭矩 夹紧力 测量系统分析 

分 类 号：V262.4[航空宇航科学与技术—航空宇航制造工程]