eblc1388
Active Member
Last night I saw on TV probably the most expensive test I have ever seen. It lasts for only a few seconds and costed $9 million US dollars for the part under test. The part is totally destroyed afterwards.
It is a Rolls Royce jet engine for the new A380 AirBus. The test is to break off one of the rotating turbine blades when these blades are rotating at some 30,000rpm(my guess). The object is to prove that the flying blade would not puncture the casing of the engine and endanger the aircraft.
The blade was broken off using explosive mounted on the roots of the blade. Just image the difficulties to set off a charge on something rotating at 30,000rpm by throwing a switch. The person to do so is a woman who is the head of the project.
How would you wire up the circuit to send the signal/power to something rotating at 30,000 rpm? Slip rings & brushes? Radio signals?
It is a Rolls Royce jet engine for the new A380 AirBus. The test is to break off one of the rotating turbine blades when these blades are rotating at some 30,000rpm(my guess). The object is to prove that the flying blade would not puncture the casing of the engine and endanger the aircraft.
The blade was broken off using explosive mounted on the roots of the blade. Just image the difficulties to set off a charge on something rotating at 30,000rpm by throwing a switch. The person to do so is a woman who is the head of the project.
How would you wire up the circuit to send the signal/power to something rotating at 30,000 rpm? Slip rings & brushes? Radio signals?