It will be interesting to see if this precooler can withstand 180 decibels at mach 25. Those are the numbers that I remember from 1991. 3000 degrees f and 180 decibels.
180 dB — that’s a lot of vibration. I didn’t know it was that high, but it’s not surprising at the front of those compressors, the shock waves at the inlet, and the air deceleration and compression.
200 lbm/sec, 1,000° C to -150° C in 10 milliseconds, 180 dB. Hard to believe all the tubes in that heat exchanger lasting under that vibration load and remaining leak free. Hydrogen leaks in the HX would not be good.
My Dad built satellites at GE and took me in to witness a shake table test simulating rocket lift off. It was the most incredible thing to see.