The 702 Institute under the First Academy of China Aerospace Science and Technology Corporation (CASC) has successfully completed the multi-vehicle parallel static and dynamic joint test of China's new-generation manned carrier rocket, CCTV reported, giving strong support to the launch of the rocket into the preliminary development stage.
Officials said that the test is an important test to verify the key technology of multi-machine parallel connection and box-bottom force transmission of the new generation of manned launch vehicle, and is a landmark work for the model to be transferred to the preliminary development stage. It is reported that this is the largest, most technically difficult and most complex test that has been carried out in the field of mechanical testing in China so far, involving key test technologies such as vibration-elastic boundary simulation, elastic loading with nearly one thousand tons of static load, and multi-machine joint multi-dimensional vibration control and loading under large static load.
IT learned that this is the first time for a Chinese carrier rocket to use multi-engine parallel connection technology of high-thrust engines. The base stage module of our new-generation manned carrier rocket has a diameter of 5 meters and can be fitted with multiple 120-ton engines.
To put it simply, at present, the steps and stages of rocket or spacecraft engineering development are roughly: from "scheme" to "preliminary sample" to "sample" and then to "applied launch". Among them, the scheme stage can be subdivided into scheme demonstration, scheme development, and then is the preliminary sample development, sample development stage.
It is worth mentioning that the "initial sample" and "sample" stages are the development steps and stages that must be experienced in the development of space models such as carrier rockets. The completion mark of these two stages is to complete the test sample flight test verification according to the flight test program and flight test outline, and put forward the test result analysis report, so as to verify whether the requirements of the development task book are met.