The "Chongqing Liangjiang Star" rocket is expected to have a flight path (red).
Flight for about 5 minutes, reliable access to all important data.
Independent mastery of solid rocket motor technology
The engine is the "heart" of the rocket and one of the core technologies for the development of the rocket. On December 22, 2017, the Zero-Zone Space X-Series rocket engine successfully completed the joint test of the whole machine on December 22, 2017. The engine was shut down after 35 seconds of operation, and the test was a complete success. This is also the first commercial solid rocket motor in China. The old engine expert who went to the on-site guidance gave the test of the test with the "three of the best":
X series rocket engine machine test site.
The first one: It took only 9 months from the start of the project to the engine joint test, and the cycle was the shortest in China's aerospace history;
The second most: the use of streamlined R & D team and test team configuration completed the task, the number of personnel is the most in the history of aerospace;
The third most: the weight of the rocket's electric core product comprehensive control machine is reduced to one-tenth of the traditional products, only less than 1.8kg, the highest degree of integration in the history of high-altitude aerospace.
The Zero Team insists on doing the utmost. The first step is to let all the new research products undergo the actual test. This test run directly brings the gas rudder, servo system and integrated control machine to the company's independent research. The product allows the control unit to replace the mature ignition equipment to perform engine ignition. If the rocket is like a car, then the gas rudder is equivalent to the wheel, the servo system is equivalent to the steering wheel and the transmission mechanism, and the comprehensive control machine is equivalent to the driver. They all successfully withstood the test.
Gas rudder is subjected to high temperature test
In April 2017, the zero-turn space successfully completed the joint test of the gas rudder heat, and the gas rudder withstood the high temperature test.
Gas rudder is a common control structure for solid rockets and a key technology for solid rocket structure design. The gas rudder needs to work in a high-pressure gas flow at a high temperature of 2000 °C for a long time, accompanied by ablation and deflection of the rudder surface in the working process, including the selection of the rudder surface material, the design of the rudder shape, the design of the heat insulation, the design of the heat seal, and the thermal matching design. The design of high temperature resistant transmission system and the calculation of controllable control surface are the core technologies of gas rudder design.
In this test, the zero-turn space was equipped with a gas rudder and its force measurement system that were tested and developed by the company. The gas rudder force measuring system is used to measure the force and moment of the gas rudder in the engine gas flow. The measurement result is used to modify the control force analysis algorithm and control system design. It is the core technology of the gas rudder test. At present, there are only a few units in China. This test capability is costly.
The self-developed force measurement system in the zero-turn space successfully acquired the force and torque data of the rudder surface in the test, solved a series of problems such as decoupling measurement, and saved the company millions of research and development costs.
Integrated integrated control system
If the engine is the "heart" of the rocket, then the integrated control system is the "brain" of the rocket.
The "Chongqing Liangjiang Star" was assembled and ready to be shipped. Source: Zero space
The comprehensive control system of zero space is not only its independent research, but also has great innovation on the technical level. It is understood that the integrated control system adopts integrated design ideas, integrates the traditional control system flight control solution, timing control, power supply and distribution, GPS receiving and telemetry system data acquisition, code modulation and other functions, weighing only 1.8 kg The integrated design significantly reduces the weight and cost of the equipment on the arrow.
"As a result, we can reduce the equipment and scale of the rocket as a whole, thereby improving the capacity." The relevant person in charge of the Zero Space Technology Team said.
The person in charge of the Zero Space Market Department introduced that the integrated integrated control machine can be widely used in aerospace vehicles such as military, civilian drones and low-cost rockets.
In April, the integrated control system also participated in the completion of the semi-physical simulation test and the comprehensive matching test of the electrical system, which also indicates that the development of the first flying arrow has entered the final stage.
Create the first commercial flight test platform
In addition to technology, Zero Space has also tried to innovate in a larger field, and the OS-X series rockets have emerged.
The “Chongqing Liangjiang Star†test was erected in erection. Source: Zero space
According to reports, this is the OS-X series rocket is the first commercial flight test platform in China, mainly used to meet the flight test needs of customers.
At present, flight tests are becoming an important means of research on key technologies in aerospace. In the world, some cutting-edge technology research programs require flight tests. In foreign countries, there are platforms that can be used for sub-orbital research and flight testing. For example, a product in the United States has been able to provide a long-time high-speed flight environment, can be customized, and used by military and civilian customers. The product is scheduled to fly for the first time in 2019 and claims that the world's first commercial flight test platform has initial operational capabilities.
"In China, many customers also have flight test requirements, but there is no such platform in China." The person in charge of the Zero Space said that the market is also the reason for determining their platform.
It is understood that the X series can meet the requirements of microgravity test, sounding, reentry test, high speed technical verification, engine performance test, aircraft performance verification, other custom requirements test, etc., and has a professional service team and rapid iterative optimization design. Low cost and other characteristics.
First flight carries multiple research tasks
The first flight of "Chongqing Liangjiang Star", Zero has also carried out the first research on innovative technologies such as "wireless communication", "resistance reduction rod" and "low-cost energy" in China, which is designed to simplify the design of rocket system and reduce the development cost. A solid foundation.
Taking the wireless communication technology on the arrow as an example, the rocket will be brought from the wired network into the new era of wireless WIFI. This technology can reduce the weight of the electrical system equipment on the arrow by 50%, save the cost of the electrical equipment on the arrow by 30%, and shorten the arrow. 60% design cycle for electrical systems.
The rocket evaluated the effect of installing the drag reduction rod on the rocket head by means of flight test. With its remarkable drag reduction and heat reduction effect, the drag reduction rod has been applied in many foreign models, but it has not been applied in domestic models. The flight of “Chongqing Liangjiang Star†has carried out scientific research for its engineering application. Explore practice.
During the rocket flight, the most critical factors that impede the development of supersonic passenger aircraft will also be tested. With the continuous development of the high-speed transportation industry, the research on sound and explosion has important engineering application value.
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