I have a little black hole

Lei Tiantang doesn’t have that mood to manage these things anyway. Anyway, he should have earned his own money, and the rest will wait for the four-star company and the stick government to apologize and compensate, otherwise these attacks will It will never stop!

He is now concerned about the rocket engine test run of the technology company. After more than a year of study and design, the rocket development work of the technology company has finally entered the fast lane. The most important rocket engine has passed a variety of After the test, we finally ushered in the key test-the overall test of the engine!

Because the rocket engine test is very dangerous, as early as last year after the design of the rocket engine was completed, the technology company invested in a large engine test bench in a deep mountain not far from Hefei. 500-ton rocket engine.

The liquid rocket engine test is an important part of the engine development work, and is carried out on various test stands specially constructed, that is, the engine or its assembly is installed on the test stand.

Under the working conditions and simulation environment provided by each process system of the test bench, the engine or assembly is required to 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 assessment, inspection and debugging, Evaluate the quality and performance of engines and assemblies.

Currently, three types of sensors are installed in the test bed: pressure, flow and temperature.Strain-type pressure sensors are usually used in the test bed. The principle is to comprehensively use the metal resistance strain effect and the conversion circuit to convert the physical deformation of the measured object into a resistance change, and then convert the resistance change into electrical output through the conversion circuit.

The resistance strain gauge made of alloy resistance wire wound into sensitive grid is pasted with insulating base layer.When the resistance strain gauge is deformed by external force, it will be pasted on the surface of the measured object to cause slight deformation, and 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. Convert physical deformation into electrical output changes.

Because there are several basic principles for the design of the test bench:

First, it should try to meet the various test requirements put forward by the engine in different development stages, and try to make the test run conditions consistent with the working conditions of the engine;

Second, the test equipment works reliably, the measurement system should have sufficient measurement channels, data capacity and measurement accuracy;

The third is to automate test run, measurement and data processing;

The fourth is to ensure the safety of staff and test equipment, complete explosion-proof, anti-virus, anti-corrosion and noise elimination measures;

Finally, we must consider a certain versatility and leave room for improvement; we must also ensure that it is easy to operate! Inspection and maintenance, has a good economy.

Rocket engine thrust test test rigs can be divided into two types of test rigs: steady state test and dynamic test according to the length of the 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 decline of thrust and pressure in the rising section. Research on the variation characteristics of after-stage effective impulse.

The 500-ton rocket engine test bed designed by the technology company is a composite test bed. It can do this. In addition to using more advanced technologies in design, the various high performances provided by the materials company The material is also the most important support that it can build and complete. There is no material with superior performance. Such a rocket engine test will have to go through several test stands!

At this time, a rocket engine has been installed on the test stand, and it is waiting for the official start of the test. Since this is the first time such an operation is performed, the company’s experts are checking the performance of all equipment for the last time. Whether the system is normal, whether the connection to the rocket engine is stable, etc.

Lei Tiantang looked at the big guy composed of 9 single rocket engines on the monitoring screen and smiled and asked Kong Yuxiao nervously around him: "Relax! Have passed so many single-machine tests and other tests. And, after many simulation tests of supercomputers, you should have more confidence in the company's technology!

Everyone has worked so hard, waiting for our own rocket to go to heaven!If even such a test fails, it is not a denial of hard work!"

"Boss, what you said is easy! How can I not be nervous! Just pull here and ask someone if they are nervous or not, don't look at how well our technology company sells home robots now, but most of the credit goes to the boss of!

This rocket project is the result of everyone's own efforts from beginning to end. Although it has passed tens of thousands of simulation tests of artificial intelligence'origin', but the situation in reality is still different from the simulated one. In case of problems, , That will hit everyone very hard!"Kong Yu smiled and said.

"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 all the things at the venue ready?" Lei Tiantang smiled and shifted the topic. Road.

"Of course I have been prepared for a long time, how can such an important thing not be prepared 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 Fancy there too!

It is adjacent to the sea, not only has good sea transportation conditions, but also the rocket navigation area and the wreckage landing area are safe.It can undertake launching tasks such as geostationary orbit satellites, large-mass polar orbiting satellites, large-tonnage space stations, cargo spaceships, deep-space probes, etc., and basically our company’s rockets need to perform such tasks in the future.

Therefore, the construction of a new space launch center in Hai Province can take advantage of the low latitude to improve the carrying capacity of geosynchronous satellites, extend the service life of satellites, and have a high cost-effectiveness ratio.Kong Yu explained with a smile.

"That's good, but the land you bought has been considered for the company's multiple launch missions in the future? After all, our company will have a lot of various spacecrafts that need to be launched in the future. It is not enough to build a launch pad!" Lei Tian Tang asked.

"Of course, the boss, even the future boss, can launch your spaceship there! The land is absolutely enough!" Kong Yuxiao replied.

"That's good! Look! The test drive has officially started! Ha, watching the scene is really different from watching it on TV!" Lei Tiantang was in a good mood looking at the streamline flames erupting from the rear of the rocket engine.

Neither he nor Kong Yu laughed to disturb their work, nor did they want to do superficial work, shouting "Testing begins!" Such things as blindly delaying time and making people feel vanity.