Thinner, lighter, more reliable: MAI engineers find a way to lighten aircraft cable networks
Modern airliners are packed with electronics. Navigation, communication, control — all of this requires kilometers of cables. And cables, no matter how you look at it, have weight. Extra weight is enemy number one in aviation: it burns fuel and reduces efficiency. Engineers at the Moscow Aviation Institute (MAI) have found a way to make the cable network significantly lighter, and the secret lies not in new materials, but in a smart voltage converter.
The idea is simple and elegant: if you raise the voltage in the onboard network to 270 volts, the same power can be transmitted through the cables, but with less current. This means the wires themselves can be thinner and lighter. The problem is that different equipment requires different voltages, and stepping it down from a high level to the required one is a non-trivial task.
MAI postgraduate student Ilya Lukoshin proposed a solution — a compact converter that does this with surprising speed. Inside the device are four tiny transistors that act as ultra-fast switches. They open and close the circuit 60 thousand times per second. The secret lies in the algorithm: by selecting the precise activation time for each transistor, the supplied energy can be dosed with high accuracy.
But the main feature of the development is its protection against failures. In aviation, interference and voltage surges are not uncommon. If a fault causes a transistor to switch at the wrong time, the control system itself will automatically correct the error and return everything to normal. This makes the converter not just efficient, but truly reliable.
Laboratory tests have already confirmed the stated characteristics. Currently, scientists are perfecting the prototype. If everything goes according to plan, in the near future airliners will become a little lighter — and therefore more economical and environmentally friendly.
