Engineering topics

Yu, James C.

Publications and source records attributed to Yu, James C..

3 records

NASA NTRS1999

Development of Field Measurement Systems for Flight Vehicle Noise

Field measurement of noise radiated from flight vehicles is an important element of aircraft noise research programs. At NASA Langley, a dedicated effort that spans over two decades was devoted to the development of acoustic measurement systems to support the NASA noise research programs. The new challenge for vehicle operational noise reduction through varying glide slope and flight path require noise measurement to be made over a very large area under the vehicle flight path. Such a challenge can be met through the digital remote system currently under final development at NASA Langley.

Yu, James C.↗

NASA NTRS1989

Noise considerations for tiltrotor

A projection is made of the technology-development requirements faced by aircraft designers contemplating the evolution of V-22-type tilt-rotor aircraft technology into a civilian tilt-rotor commuter aircraft of the requisite scale and payload. These research challenges are noted to often involve the reduction of noise level to values tolerated by passengers within the cabin and communities in the vicinity of airports, especially during hover and in the course of transition from vertical to horizontal flight (and vice-versa). Noise-generation and noise-radiation characteristics research has been undertaken using the XV-15 tilt-rotor proof-of-concept aircraft.

Huston, Robert J.↗

NASA NTRS1988

Structures and materials technology for Space Station

This paper provides a brief overview of the NASA Langley structures and materials technology program for large space structures. Concepts developed for constructing large space truss structures such as space platforms and antennas are considered. The applications of the finding to the Space Station initiative are addressed.

Blankenship, Charles P.↗