NRC helps Aircraft Manufacturers Reduce Airframe and Landing Gear Noise
The National Research Council of Canada (NRC) has commissioned a wind tunnel to help aircraft manufacturers measure the noise levels generated by aircraft landing gear. Unique in Canada, this facility will help airline manufacturers meet internationally accepted and ever more stringent noise standards.
In Ottawa, one of the eight wind tunnels operated by NRC Aerospace has been outfitted with an acoustic liner and precision noise measurement technology. This tunnel can house landing gear and simulate the wind conditions during deployment and on approach, generating wind speeds up to 150 knots. NRC aerodynamics experts take landing gear apart and reassemble it part by part, measuring the noise generated by wind flowing around each component as well as that caused by components interacting. The idea is to guide manufacturers in the design of specific components to reduce their sound impact.
The body behind the research is the Green Aviation R&D Network (GARDN), a federally established business-led network of Centres of Excellence. Bombardier Aerospace, Bell Helicopter, Pratt & Whitney Canada and CMC Electronics are among the industry partners collaborating with NRC and nine universities to help manufacturers produce greener aircraft.
Regulations, targets and limits are set by the International Civil Aviation Organization (ICAO) and NASAs Environmental Responsibility Aviation (ERA) program. In the next ten years, regulations will aim to reduce noise generated by commercial aircraft by 32 dB relative to the current standard.
Until recently, the industry had focused on measuring and reducing the noise generated by engines alone.Turbofan-powered aircraft and business jets become progressively quieter with higher ratios of circumvention, acoustic materials and technical design of the car to meet increasingly stringent targets for reducing noise.
However, little is known that the cell also generates a lot of noise due to turbulence of the airflow around the landing gear, wheel wells, flaps and slats.
Air Canada Type Aircraft - News
(P&WC) has received Transport Canada type certification for its PW210S engine, selected by Sikorsky for the S-76D medium-sized helicopter targeting corporate, offshore oil, medical, airline and government operators around the world.
Al Bradshaw, the director of safety and security at the airport, said the simulation also involved commercial air carriers, which are supposed to treat the accident as if one of their own aircraft had gone down. WestJet, Porter and Air Canada,
Pratt & Whitney Canada Corp. (P&WC) has received Transport Canada type certification for its PW210S engine, selected by Sikorsky for the S-76D medium-sized helicopter targeting corporate, offshore oil, medical, airline and government operators around
Aircraft equipment manufacturers can now call on NRC Aerospace for this type of acoustic assessment. Recognized globally for research and innovation, Canada's National Research Council (NRC) is a leader in the development of an innovative,
It has 4000 share owners and 3500 card customers for its Marquis brand. It employs 6400 people, more than a quarter the workforce at Air Canada. Flexjet has 84 aircraft, about 30 of them Challenger 300s, 356 pilots and about 800 employees.
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