TY - GEN
T1 - Adaptive noise isolation in finite ducts
AU - Li, Yugang
AU - Malatpure, Aniket
AU - Rahn, Christopher D.
AU - Dawson, Darren M.
N1 - Funding Information:
This research is supported, in part, by a grant (F49620-98-1-0467) from the Air Force Office of Scientific Research (Project managers: Brian Sanders and Dan Segalman). This support is gratefully acknowledged.
Publisher Copyright:
© 2000 by ASME.
PY - 2000
Y1 - 2000
N2 - Noise from jet engines, vehicle exhaust systems, and heating, ventilation, and air conditioning systems often involves planar acoustic wave propagation through finite ducts. This paper introduces controllers that use a loudspeaker actuator and two microphone pressure sensors to adaptively decouple adjacent ducts, thereby isolating a quiet duct from bounded disturbances in an adjacent noisy duct. The system model includes a one dimensional displacement-based partial differential equation for planar noise propagation in the two ducts and an ordinary differential equation for the speaker dynamics. Based on Lyapunov theory, Exact Model Knowledge and adaptive isolation controllers exponentially and asymptotically regulate the controlled duct from bounded disturbances in the uncontrolled duct, respectively, while ensuring bounded uncontrolled duct response and control voltage.
AB - Noise from jet engines, vehicle exhaust systems, and heating, ventilation, and air conditioning systems often involves planar acoustic wave propagation through finite ducts. This paper introduces controllers that use a loudspeaker actuator and two microphone pressure sensors to adaptively decouple adjacent ducts, thereby isolating a quiet duct from bounded disturbances in an adjacent noisy duct. The system model includes a one dimensional displacement-based partial differential equation for planar noise propagation in the two ducts and an ordinary differential equation for the speaker dynamics. Based on Lyapunov theory, Exact Model Knowledge and adaptive isolation controllers exponentially and asymptotically regulate the controlled duct from bounded disturbances in the uncontrolled duct, respectively, while ensuring bounded uncontrolled duct response and control voltage.
UR - http://www.scopus.com/inward/record.url?scp=85119860256&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85119860256&partnerID=8YFLogxK
U2 - 10.1115/IMECE2000-1782
DO - 10.1115/IMECE2000-1782
M3 - Conference contribution
AN - SCOPUS:85119860256
T3 - ASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE)
SP - 101
EP - 108
BT - Control of Vibration and Noise
PB - American Society of Mechanical Engineers (ASME)
T2 - ASME 2000 International Mechanical Engineering Congress and Exposition, IMECE 2000
Y2 - 5 November 2000 through 10 November 2000
ER -