6 Wind and Water Tunnel Equipment
407
Fig. 6.26 D5 aeroacoustic wind tunnel landing gear pressure test
× height × length), and the cross section is a chambered rectangle. The
wind tunnel is equipped with a tower-type mechanical balance and a
series of strain balances for force test. Equipped with pressure sensors and
electronic scanning valve system with an appropriate range for pressure
distribution measurement test; high pressure air source and high precision
pressure flow control system for aircraft engine performance simulation
and measurement; it is equipped with dynamic derivative test device, jet
test device, inlet test device, shifting test rack device, ground effect test
device and control system, launching test device, test device with propeller
power, abdominal brace and tail brace support device, rotating balance test
device, etc.
The fan section has a diameter of 5.98 m, 12 blades made of forged
aluminum, and the drive power of ac variable frequency motor is
2050 kW. The motor is installed in the fairing, with 7 tail cone guide
blades and 7 front support blades. Figures 6.30 and 6.31 show the wind
tunnel test section.
3. Pressurized wind tunnel
FL-9 low-speed supercharged wind tunnel is a critical aviation infrastructure scheme proposed according to the needs of China’s trans-century
aviation industry development (as shown in Fig. 6.32). Its construction
and use filled the gap of China’s high-Re wind tunnel (the maximum
407
Fig. 6.26 D5 aeroacoustic wind tunnel landing gear pressure test
× height × length), and the cross section is a chambered rectangle. The
wind tunnel is equipped with a tower-type mechanical balance and a
series of strain balances for force test. Equipped with pressure sensors and
electronic scanning valve system with an appropriate range for pressure
distribution measurement test; high pressure air source and high precision
pressure flow control system for aircraft engine performance simulation
and measurement; it is equipped with dynamic derivative test device, jet
test device, inlet test device, shifting test rack device, ground effect test
device and control system, launching test device, test device with propeller
power, abdominal brace and tail brace support device, rotating balance test
device, etc.
The fan section has a diameter of 5.98 m, 12 blades made of forged
aluminum, and the drive power of ac variable frequency motor is
2050 kW. The motor is installed in the fairing, with 7 tail cone guide
blades and 7 front support blades. Figures 6.30 and 6.31 show the wind
tunnel test section.
3. Pressurized wind tunnel
FL-9 low-speed supercharged wind tunnel is a critical aviation infrastructure scheme proposed according to the needs of China’s trans-century
aviation industry development (as shown in Fig. 6.32). Its construction
and use filled the gap of China’s high-Re wind tunnel (the maximum