Chapter 345: Rocket engine test run!

Lei Tiantang is not in the mood to take care of these things now. Anyway, the money he should have made has already been earned back. The rest will be waited for when the four-star company and the Bangzi State government apologize and compensate him, otherwise he will be compensated for these attacks. It will never stop!
What he cares about now is the testing of rocket engines of science and technology companies. After more than a year of study and design, the rocket research and development work of science and technology companies has finally entered the fast lane. The most important rocket engine has gone through a variety of After the test, the key test finally ushered in-the overall test of the engine!
As the rocket engine test run is very dangerous, as early as last year after the rocket engine design was completed, the technology company invested in the construction of a large engine test bench in a deep mountain not far from Feihe. A 500-ton rocket engine.
Liquid rocket engine testing is an important part of the engine development work. It is carried out on various specially constructed test benches, that is, the engine or its components are installed on the test bench.
Under the working conditions and simulation environment provided by the various process systems of the test bed, the engine or assembly can complete the required work according to the predetermined procedure. The main purpose is to verify the feasibility of the design, the reliability of the process, and the method of evaluation, inspection and debugging. Evaluate the quality and performance of the engine and its components.
Currently, three types of sensors are installed in the test bench: pressure, flow and temperature??. Strain pressure sensors are usually used in test benches. The principle is to use metal resistance strain effects and conversion circuits to convert the physical deformation of the measured object into resistance changes, and the resistance changes are converted into electrical output through the conversion circuit.
The resistance strain gauge made of alloy resistance wire wound into a sensitive grid is pasted with an insulating base layer. When the resistance strain gauge is deformed by an external force, it will be pasted on the surface of the measured object to produce a slight deformation. At the same time, the sensitive grid will also be deformed accordingly. The resistance value of the resistance strain gauge changes and is equivalently transformed through the conversion circuit. The physical deformation is converted into a change in electricity output.
And because there are several basic principles of test bench design:
One is to try to meet the various test requirements put forward by the engine in different development stages, and try to make the test conditions consistent with the working conditions of the engine;
The second is that the test equipment is reliable, and the measurement system should have sufficient measurement channels, data capacity and measurement accuracy;
The third is to automate commissioning, measurement, and data processing;
The fourth is to ensure the safety of staff and test equipment, with complete measures such as explosion-proof, anti-virus, anti-corrosion and noise elimination;
Finally, we must consider a certain degree of versatility, and leave room for improvement; but also to ensure that it is easy to operate! Inspection and maintenance, good economy.
The rocket engine thrust test bench can be divided into two test benches: steady state test and dynamic test according to the length of application test. The former mainly tests the steady state thrust and pressure performance indicators of the engine, and the latter focuses on the transition process and decrease of thrust and pressure rise. Research on the characteristics of after-effect impulse change.
The 500-ton rocket engine test bench designed by the technology company is a composite test bench. In addition to adopting more advanced technologies in the design, the material company provides a variety of high performance The material is also the most important support for its construction. Without materials with superior performance, such a rocket engine test run will have to go through several test benches to complete!
At this time, a rocket engine has been installed on the test bench, and it is waiting for the formal start of the test. Since this is the first time such an operation has been performed, the company’s experts are comprehensively inspecting the performance of all equipment for the last time. Whether the system is normal, whether the connection with the rocket engine is stable, etc.
Lei Tiantang looked at the big guy made up of 9 single rocket engines on the monitoring screen and smiled and asked Kong Yu who was nervous around him: "Relax! I have gone through so many stand-alone tests and other tests. , After many simulation tests of supercomputers, you should have more confidence in the company's technology!
Everyone has worked hard for so long, waiting for our own rocket to go to the sky! If you can't even pass such a test, isn't it a denial of everyone's hard work! "
"Boss, it’s easy to say! How could I not be nervous! You can pull someone here and ask if they are nervous. Don’t look at our technology company’s current home robots selling so well, but most of the credit goes to the boss. of!
This rocket project is the result of everyone’s hard work from beginning to end. Although it has passed tens of thousands of simulation tests on the origin of artificial intelligence, the actual situation is still different from the simulated one, in case something goes wrong. , It will be a big blow to everyone! Kong Yu said with a smile.
"Haha! Okay, let's talk about other topics. After this test, it should be the actual launch and recovery test of the rocket engine? Are you ready for the venue?" Lei Tiantang smiled and changed the subject. Tao.

Of course I’ve been prepared long ago. How can we not prepare for such an important thing in advance? We bought a large piece of land in Hai Province to build our rocket launch base. The country already has a rocket launch base there. We Also fancy there!
It is adjacent to the sea and not only has good maritime transport conditions ~EbookFREE.me~, but also the rocket navigation area and the wreckage area are safe. It can undertake the launch missions of geosynchronous orbit satellites, massive polar-orbiting satellites, large-tonnage space stations, cargo spacecraft, and deep space probes, and our company’s rockets will basically need to perform such missions in the future.
Therefore, the construction of a new space launch center in the province can take advantage of the low latitude to improve the carrying capacity of geosynchronous orbit satellites, extend the service life of satellites, and have a high cost-effectiveness. Kong Yu explained with a smile.
"That's good, but the land you bought has already considered the company's multiple launch missions in the future? After all, our company will need to launch a lot of various spacecraft in the future. If only one launch pad is built, it will not be enough!" Lei Tian Tang asked.
"Of course the boss, even the future boss, your spacecraft can be launched there! The land is definitely enough!" Kong Yu replied with a smile.
"That's good! Look! The test run has officially started! Ha, watching it live is really different from watching it on TV!" Lei Tiantang was in a good mood watching the streamlined flames from the tail of the rocket engine.
Neither he nor Kong Yuxiao bothered to interrupt their work, nor did they think about doing superficial work, shouting "testing start!" Such things, if you missed the time, it would make people feel very vain.