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Chapter 915 Become the big brother yourself

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    Lin Guanghua is indeed right. As early as the late 1980s, Ascendas Group had begun to track the relevant foundations of full-authority digital electronic control systems for foreign aerospace engines.

    And at the very beginning, Ascendas Group did not want to take the leading role on its own, but placed its hope on international cooperation.

    This is not because Ascendas Group does not want to be independent, but because the expansion of Ascendas Group was too big at that time, resources in all aspects were somewhat tight, and there was no energy to invest more in full-power digital electronic control systems. Under such circumstances, full-power digital electronics  The control system taking the form of international cooperation can be regarded as a quick measure to fill the gap.

    So Zhuang Jianye found General Motors and Pratt & Whitney through McDonnell Douglas and other American partners, which had a good cooperative relationship with Ascendas Group at the time, hoping to cooperate in the aero-engine full digital electronic control system.

    As a result, GM and Pratt & Whitney looked at the letter of intent for cooperation handed over by Ascendas Group, and did not reject it immediately. Instead, they gave Ascendas Group's two aerospace giants detailed introductions to similar products, and bluntly told Ascendas Group: "You guys  Forget about manufacturing aero engines and gas turbines. Take a look at our products. They are much better than yours. How about it? Feel free to do OEM work for us two brothers. Follow your big brother and make sure you have a drink every day.  , Xiao Huazi is smoking, with a big gold chain and a small watch, and the little girl is using it as a cotton-padded jacket!"

    Zhuang Jianye is ready to cooperate. If he can take on some of General Motors and Pratt & Whitney's aviation engine parts OEM under this premise and earn some pocket money, he will naturally not mind. The problem is that General Motors and Pratt & Whitney directly regard Ascendas Group as their younger brother.  , without saying anything, he wanted to be included in the club and start mercilessly exploiting him.

    " Zhuang Jianye can't stand it, so of course he has to make his attitude clear.

    GM and Pratt & Whitney originally thought that Ascendas Group was here to pay homage to the dock and be their little brother, so they were naturally polite.  It turned out that Tengfei Group did not join the club, but was preparing to steal their skills. If they were to show a good face, what would the other younger brothers of the two eldest brothers think?

    What's more, the full-power digital electronic control system sounds simple, but in fact it is another world-leading black technology of General Motors and Pratt & Whitney in the core materials of aerospace engines.

    It is of vital significance to these two global aero-engine leaders to widen the gap with other countries and maintain the leading edge in aero-engines in the next twenty years.

    ??In fact, this is indeed the case.

    Unlike traditional hydraulic mechanical control systems that require a complex set of mechanical components and structural accessories installed on the underside or side of the aero-engine, the full-power digital electronic control system only requires a core electronic control box, combined with precision servo control that is integrated with the aero-engine.  Mechanisms and sensors can control the turbine temperature, turbine speed, fuel injection rate and fan arithmetic of the aircraft engine.

    ¡° One is a huge and complex mechanical structural attachment that occupies nearly half of the aircraft engine, and the other is an electronic control box the size of a computer screen.

    No need to consider other things, just the weight reduction of the aero-engine itself makes the full-power digital electronic control system immediately become synonymous with true fragrance.

    What¡¯s more, the maintainability of the full-power digital electronic control system is much better than that of the traditional hydraulic mechanical control system.

    "There is no way that the mechanical structure is inherently complex, and it serves an uncle-level existence such as aero-engines. Naturally, its position is also an uncle. Therefore, the required accuracy and frequency of maintenance can directly make ground engineers collapse to tears.

    The full-power digital electronic control system is different. A master electronic controller is not only exquisite, but also can troubleshoot various internal nodes through an external computer. The specially designed control software has fault prediction and independent detection functions to ensure  In many cases, there is no need for ground staff to intervene, and the full-power digital electronic control system has already displayed the fault location on its own.

    The ground crew can adjust or repair according to the displayed position, which can be said to be directly to the point, efficient and fast.

    Of course, this is only one aspect of the many benefits of the full-authority digital electronic control system. What really makes this technology a favorite of American aviation giants is the qualitative improvement of the flight quality of the full-authority digital electronic control system.

    Due to the complex mechanical structure of traditional hydraulic mechanical control systems, pilots always have an unavoidable lag when controlling engine output.

    So much so that when driving an airplane, it always gives people a sense of slow response and powerlessness.

    Just like a car with a crappy gearbox, the frustration of changing gears can make you feel like a tractor, and it can drive an experienced driver crazy.

    ???????????????????????????????????????????????????????????????????????????? It?doesn¡¯t matter if it lags a little behind, anyway, there is no need to perform difficult maneuvers, as long as it flies smoothly to the destination according to the route.

     Fighters used in air combat are dying.

    You must know that air combat is ever-changing. If there is a slight delay, you may be locked by the enemy and be absorbed by the enemy.

    Because of this, the combat effectiveness of a fighter jet using a full-authority digital electronic control system is very different from that of a fighter without it, because the full-authority digital electronic control system can be seamlessly connected to the aircraft's fly-by-wire flight control system, thus optimizing the overall impact of the aeroengine on the entire aircraft.  Fighter performance output.

    In this way, the pilot only needs to move the joystick, and everything on the aircraft will be processed efficiently and automatically.

    In contrast to the traditional hydraulic-mechanical control system, the pilot controls the throttle, the valve, the regulator, and the joystick

    After a set of movements, the flight attitude may not be adjusted, but the pilot is already half-tired from running around.

    The most typical one is the Su-30mki multi-purpose fighter aircraft introduced by New Delhi from Russia. On paper, this combat aircraft is equipped with a world-leading vector engine.

    ¡°However, Russia is not up to par in terms of full-power digital electronic control systems, and can only use traditional hydraulic mechanical structures to control complex structures such as vector nozzles.

    This has led to an increase in the structural weight of the Su-30mki, and has also brought unnecessary trouble to the pilot's control, because the New Delhi pilot flying the Su-30mki multi-purpose fighter needs to hold the joystick with one hand and control the regulating valve with the other hand.  You also have to activate the hydraulic button and then grasp the balance according to the feeling, so that you can barely achieve the deflection of the vector nozzle and increase the engine thrust.

    The F-22, which also uses vector engines, has a seamless connection between the engine's full-authority digital electronic control system and the aircraft's fly-by-wire control system, so pilots flying the F-22 can simply pull the joystick if they want to deflect the vector nozzle.  Achieve perfect violent output.

    With such a huge performance advantage, how could GM and Pratt & Whitney bring it together?  Of course, it is cost-effective to cover up and create a monopoly.

    To be honest, at that time, either General Motors or Pratt & Whitney could tell Ascendas Group: "Young man, it's not easy. Okay, big brother can help you."

    Zhuang Jianye can lead Ascendas Group to bow down.

    As a result, no one wanted to see Ascendas Group. Faced with the dilemma of being either the younger brother and being abandoned as shit, Zhuang Jianye unfortunately chose the third path. Isn¡¯t it just a status in the world? Well, let¡¯s be the big brother.  !

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