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介绍了一种连杆装置载荷测试系统。某大型火箭芯级与助推器的连接采用了三支点超静定捆绑方式,为了充分了解这一新型捆绑连接结构在火箭大型地面试验和发射前加注过程中的载荷变化情况,开发设计了捆绑连杆载荷监测系统。系统采用了多路模拟开关及扫描技术实现了多通道数据实时采集,同时编制数据采集和数据处理软件对采集到的电压信号进行分析处理。通过对该系统的标定,实现载荷的测量。文章介绍了系统的硬件、软件设计原理和系统的两种工作状态。通过对箭上使用的连杆进行标定,得到连杆受力和系统输出的关系,通过标准载荷试验验证,线性误差在系统允许范围内。该系统载荷测量准确,可以用于火箭各种大型地面试验中捆绑连杆的载荷测量。
A connecting rod device load testing system is introduced. A large rocket core and booster connection with the use of three-point statics tied way, in order to fully understand the new type of bundled connection structure in the rocket test and launch before launch large surface load changes during the development and design Bundled link load monitoring system. The system uses multiple analog switches and scanning technology to achieve real-time acquisition of multi-channel data, while the preparation of data acquisition and data processing software for the acquisition of the voltage signal analysis and processing. Through the calibration of the system, to achieve load measurement. The paper introduces the system hardware, software design principles and system of two working conditions. Through the calibration of the connecting rod used on the arrow, the relationship between the connecting rod force and the system output is obtained. Through the standard load test, the linear error is within the allowable range of the system. The system load measurement accuracy, can be used for a variety of large rocket ground test load measurement tied bundles.