Text | Hua Shang Tao Li Wu Su
Scientific and technological personnel have tackled tough problems for the country, and many moments have been deeply touched.
For example, Qian Xuesen's disciple Guo Yonghuai, who flew to Beijing overnight, crashed when the plane malfunctioned on the way, and when people found his body, they found him and the guards hugging each other, and a briefcase was sandwiched in the middle, containing top-secret information.
For another example, at the appraisal meeting of scientific and technological achievements of electromagnetic catapult technology, a white-haired old expert was excited and touched the prototype and cried.
Guo Yonghuai is the only scientist who has participated in all the work of "two bombs and one satellite", and Everyone knows China's "achievements" in this regard, and the breakthrough in electromagnetic catapult technology depends on Ma Weiming, who became an academician of the Chinese Academy of Engineering at the age of 41.
Electromagnetic catapult technology is a core technology of the aircraft carrier, other than that, in the development of this technology, the United States spent 21 years and dropped 3.2 billion US dollars, which is obviously difficult.
After obtaining cutting-edge technology, the United States has been locked down for a long time, and even if it is sold, it is a multi-billion price tag.
A few days ago, the United States issued a statement for the first time to sell the electromagnetic catapult system of the aircraft carrier, saying that it decided to sell electromagnetic catapult systems and advanced blocking devices to France, and the total amount is expected to reach 1.321 billion US dollars, about 8.4 billion yuan.
It is precisely seeing the indispensability of this technology that Ma Weiming led the team to use their long-term technical accumulation in the development of electrical engineering equipment to successfully develop a small prototype and "unlock" the key technology in one fell swoop.
After overcoming the difficulties of basic technology, Ma Weiming's team worked hard for several years and made a cluster breakthrough in electromagnetic emission technology, making China the second country in the world to master electromagnetic catapults, and the media said that it comprehensively promoted the launch revolution of the mainland's "heavy weapons" from chemical energy to electromagnetic energy.
Because of this, he is known as the "domestic Magneto King".
In addition to electromagnetic catapult technology, Ma Weiming has also conquered the core technology of ship generators.
Specifically, in the early 1990s, when the mainland developed a new type of conventional submarine, it had to spend huge sums of money to buy high-efficiency generator systems from abroad, but even if it was paid, it would cause various problems.
In the process of negotiating with foreign technology, Ma Weiming found that there was an inherent oscillation problem in the output of the motor. This is not a small problem, once the inherent oscillation exceeds a certain critical point, it will cause the "paralysis" of the entire power system, and the moment that cannot be lost may be reduced to "scrap iron".
Therefore, Ma Weiming pointed out the inherent oscillation problem of foreign motors in person. Unexpectedly, Western experts simply dismissed it, arrogantly responding that their products were "completely problem-free."
This incident stung Ma Weiming, who understood more and more that the core technology must be made in China, otherwise, "you can only live on the waistband of other people's pants forever."
Dare to think and dare to do, Ma Weiming, with the support of his mentor Zhang Gaifan, used only 35,000 yuan to manufacture two small twelve-phase motors and started the research and development of domestic twelve-phase generators.
With limited funds, he had to exhaust all kinds of methods: without a laboratory, he smashed the sink and transformed a 20-square-meter face washroom into a laboratory; in order to simulate the test in the waterproof environment, they bought salt to develop "artificial seawater"; without lifting equipment, they carried a stick on their shoulders, and the bulky iron guy was carried into the laboratory.
After repeated testing, disassembly, debugging and calculation, it took five years for Ma Weiming to lead the team to develop a twelve-phase rectifier generator that belongs to the Chinese and has the international leading level. On this basis, a multiphase rectifier generator with a stable winding was invented, which fundamentally solved the worldwide problem of "inherent oscillation".
After China opened up technology, the arrogance of the West was self-defeating. At the beginning, foreign investors stressed that "only sell products, not patents", when Ma Weiming solved the inherent shock problem, he had to buy it in reverse, and he had to pay 2.5 million yuan for one use.
Not only electromagnetic catapult technology, ship-to-ship generator related technology, Ma Weiming also has a number of achievements, for example, he spent ten years to develop the world's first AC and DC winding generator system, reducing submarine noise by more than 10% and achieving the pioneering action of "submarine mute".
It is not difficult to see that the "secret to victory" of Ma Weiming's repeated achievements lies in his ability to really concentrate on tackling tough problems, make great efforts, fight hard battles, and bear fruit.
Ma Weiming's super "combat effectiveness", even the Western giants, are eager to include it. According to the media, as early as 1997, a Western company tried to invite him to join with an annual salary of 700,000 US dollars (4.4 million yuan in a discounted contract), but as a result, Ma Weiming flatly refused, so he was ridiculed by some people as a "high-IQ fool".
Ma Weiming could not be attracted by huge interests, and he once said publicly: "I, willingly, am willing to be a horse that rides a rope, bow down for the sake of national interests and national defense, and die after death." ”
It can be said that China has been changing and developing vigorously over the years, because there are thousands of Ma Weiming who do not consider personal gains and losses and are bent on serving the country with science and technology!
Resources:
1. "The United States approves the export of aircraft carrier electromagnetic catapult system for the first time: the price of up to $1.32 billion for France", Global Network
2. "Ma Weiming: Winning Deep Blue", China Education News
3. "Ma Weiming: A Breakthrough in Electromagnetic Ejection Technology", Beijing News
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