Adaptive control of vibration transmission in a strut system

In this article, theoretical and the experimental studies are reported on the adaptive control of vibration transmission in a strut system subjected to a longitudinal pulse train excitation. In the control scheme, a magneto-strictive actuator is employed at the downstream transmission point in the secondary path. The actuator dynamics is taken into account. The system boundary parameters are first estimated off-line, and later employed to simulate the system dynamics. A Delayed-X Filtered-E spectral algorithm is proposed and implemented in real time. The underlying mechanics based filter construction allows for the time varying system dynamics to be taken into account. This work should be of interest for active control of vibration and noise transmission in helicopter gearbox support struts and other systems.

[1]  Peter Vary,et al.  Frequency-domain adaptive Kalman filter for acoustic echo control in hands-free telephones , 2006, Signal Process..

[2]  David W. Miller,et al.  Optimal Control of Power Flow at Structural Junctions , 1989, American Control Conference.

[3]  Srinivasan Gopalakrishnan,et al.  Optimal spectral control of multiple waves in smart composite beams with distributed sensor-actuator configuration , 2001, SPIE Micro + Nano Materials, Devices, and Applications.

[4]  K H.-S. DELAYED-X LMS ALGORITHM: AN EFFICIENT ANC ALGORITHM UTILIZING ROBUSTNESS OF CANCELLATION PATH MODEL , 1998 .

[5]  Toshio Sone,et al.  THE STABILITY AND CONVERGENCE CHARACTERISTICS OF THE DELAYED-X LMS ALGORITHM IN ANC SYSTEMS , 1998 .

[6]  Mingsian R. Bai,et al.  IMPLEMENTATION OF A BROADBAND DUCT ANC SYSTEM USING ADAPTIVE SPATIALLY FEEDFORWARD STRUCTURE , 2002 .

[7]  W. Steve Shepard,et al.  Experimental study on active vibration control of a gearbox system , 2005 .

[8]  B Balachandran,et al.  Analytical study of active control of wave transmission through cylindrical struts , 2001 .

[9]  Brian R. Mace,et al.  Adaptive active control of flexural waves in a beam in the presence of a nearfield , 2005 .

[10]  Chin An Tan,et al.  Active Vibration Control of the Axially Moving String by Wave Cancellation , 2021 .

[11]  T. Ohtsuka,et al.  Wave-absorbing control for flexible structures with noncollocated sensors and actuators , 1989 .

[12]  Y. Kikushima,et al.  Optimal Vibration Feedback Control of an Euler-Bernoulli Beam: Toward Realization of the Active Sink Method , 1999 .

[13]  D. Roy Mahapatra,et al.  Active feedback control of multiple waves in helicopter gearbox support struts , 2001 .

[14]  Jian-da Wu,et al.  Implementation of an active vibration controller for gear-set shaft using μ-analysis , 2005 .

[15]  Vasanthan Raghavan,et al.  Complexity of pruning strategies for the frequency domain LMS algorithm , 2006, Signal Process..