Design And Implementation Of Multi Channel Static Loading Control System For Aerospace Test

Static loading test is one of the important structural testing experimental means, which is widely used in the field of aerospace. While the static loading test of the test object oriented space with huge structure, high load level, long time span and other characteristics of the test. This has put forward higher request to the static loading test of the hydraulic loading system.According to the loading control system of multi-channel manual hydraulic, developed by NO 702 Institute of Chinese Academy of Launch Vehicle Technology, the research analysis system for the overall, analyzes the structure and composition of the manual hydraulic loading control system, establish the work flow of the system, focusing on the study of the function of system, performance, interface, design requirements of safety and so on, clear design goals of manual hydraulic loading control system software.In the LabVIEW graphical language design platform, the use of virtual instrument technology, state machine technology, FPGA test and measurement technology, TCP protocol technology, Ethernet technology, designs the parameters configuration, data acquisition, graphic display, data management, data communication, multi-channel manual hydraulic loading control system software data playback etc. function. At the same time, the detailed design of the input and output interface program between, in order to meet the requirement of manual hydraulic loading control system. The state machine structure, designed the overall structure of the flow of software, realize the function requirements of the system overall. According to the interface requirements, interaction between the interface design and user. The software design of the security policy in a series of data interaction, stability, loading safety test error recording capability, etc. to ensure the safety and stability of the system.The new system developed fast response speed, high measuring accuracy, stable and reliable, add the function of humanization, and the development of low cost, short time to build the system, to provide a powerful guarantee for the test. For the future to carry out the construction of static test chamber fast, efficient, set up perfect manual hydraulic loading system, the research provides valuable experience.