1. Science and Technology Field This project belongs to the fields of scientific research, technical services and geological exploration. 2. Project background In the process of launching satellites, detectors and other spacecraft by launch vehicles, separation operations are always accompanied, such as carrier rocket stage separation, satellite rocket separation, spacecraft separation, etc. Whether the separation system can work normally is a key factor affecting the success or failure of aerospace product flight. How to verify the feasibility and reliability of the aerospace product separation system scheme is a key technology to realize the launch of aerospace products. Since the beginning of the 21st century, in order to comprehensively improve my country's overall level in terms of space-to-earth transportation capabilities and satellite application capabilities, and accelerate my country's progress from a aerospace power to a aerospace power, my country has launched a variety of high-thrust bundled launch vehicles and multi-functional high-precision satellite development work, a large number of cutting-edge separation technologies are gradually applied to aerospace products, such as a new generation of high-thrust solid booster separation and recovery technology, multi-satellite high-precision orbital separation technology, etc. However, the existing separation test verification technology has problems such as low simulation degree of space-earth consistency and limited measurement accuracy of separation parameters in complex environments, which largely restricts the development of separation technology. 3. Main technological innovations This project focuses on the development of a separation system test system for my country's new aerospace products and the verification and implementation of separation tests. It has mastered a number of key separation test technologies and overcome the problems of high-precision simulated separation tests of multiple models such as the Long March 6A launch vehicle, the Fengyun-4 satellite, and the Chang'e-5 probe, providing a reliable guarantee for aerospace products to complete their first flight mission. The main innovations are as follows: 1. A segmented bending-resistant design method is proposed to assist load-bearing structures and devices, and a test system assembled by multi-specification cage-type load-bearing frames is invented, which breaks through the bearing and protection of 50-ton high-energy explosion impact. Key technologies such as full-process virtual assembly of multi-physical models, and high-altitude falling buffer protection of size and large-mass separated bodies have solved the problem of vertical separation and recovery of large booster of launch vehicles;2. A spacecraft microgravity environment simulated separation verification test system has been invented, which overcomes the problems of poor separation control accuracy, complex test equipment, and large data resolution error faced by traditional separation test methods. It has the advantages of high gravity balance accuracy, fast dynamic response speed, long follow-up stroke and adaptability to microgravity simulated separation tests of spacecraft of various specifications;3. An anti-radiation and anti-interference buffer protection device has been invented, which solves the problem of image capture under interference factors such as high electromagnetic radiation, strong light, and impact. It realizes three-dimensional reconstruction of a multi-ocular stereo vision system and automatic matching measurement of mobile images, and obtains a large-scale elastic rocket structure with a large field of view and high-precision three-dimensional motion trajectory. 4. Main technical indicators 1. The inclination of the assembled separation test tower is less than 0.2 deg;, the impact resistance exceeds 50t, the bending resistance exceeds 350t bull;m, and the energy absorption of the separation buffer protection device exceeds 80%;2. It has a gravity follow-up balance simulation capability of 1kN to 40kN, the separation working stroke reaches 500mm, the separation follow-up speed exceeds 0.5 m/s, and the separation response time is less than 5ms;3. It has the ability to test separated attitude in extreme environments. The test accuracy reaches plusmn;5 mm in the spatial dimension of 25 m times;25m times; 5 m, and the test error is less than 2.0%. 5. Intellectual Property Rights and Application Promotion This project is novel and innovative in technology, has multiple intellectual property rights, and the overall technology has reached the domestic leading and international advanced level. It has been carried out in the fields of missile, rocket, satellite, and equipment. Multiple separation test projects have solved the problems of low consistency of simulation and low test accuracy in ground simulation test, effectively verified the feasibility and reliability of multiple separation system design plans, and made positive and beneficial contributions to the successful launch of my country's new generation aerospace products.