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RISOptimal Implementation of Miniature Piezoelectric Panel Speakers Using the Taguchi Method and Genetic Algorithm
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A thin and miniature piezoelectric panel speaker has been developed in this paper. The system is modeled using the energy method in conjunction with the finite element method. The electrical ...
Optimal Design and Implementation of an Omnidirectional Panel Speaker Array Using the Genetic Algorithm
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A panel speaker array with omnidirectional radiation pattern is presented in this paper. Array signal-processing techniques are utilized to manipulate the sound beam electronically such that ...
Active Noise Cancellation for a Three-Dimensional Enclosure by Using Multiple-Channel Adaptive Control and H∞ Control
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Active noise control (ANC) techniques for a three-dimensional enclosure are compared in terms of two control structures and two control algorithms. The multiple-channel filtered-x least-mean-square ...
Simulations of an Internal Model-Based Active Noise Control System for Suppressing Periodic Disturbances
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This study proposes an active noise control algorithm using the internal model principle. The structure of the noise is built in the transfer function of the controller in the unity feedback ...
DSP Implementation of an Active Bearing Mount for Rotors Using Hybrid Control
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: An on-line active technique for suppressing rotor vibration is proposed. Electromagnetic actuators are mounted on the housing of a ball bearing for generating counter forces to cancel the ...
Integration of a Quantitative Feedback Theory (QFT)-Based Active Noise Canceller and 3D Audio Processor to Headsets
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper seeks to enhance the quality of spatial sound reproduction by integrating two advanced signal processing technologies, active noise control (ANC) and three-dimensional (3D) audio, to ...
Broadband Spatially Feedforward Active Noise Control Algorithms Using a Comb Filter
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A controller composed of a nonrecursive filter and a recursive filter is used to approximate the ideal controller for a spatially feedforward duct ANC problem. The nonrecursive part represents ...
Industrial Noise Source Identification by Using an Acoustic Beamforming System
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A noise source identification technique is proposed for industrial applications by using a microphone array and beamforming algorithms. Both of the directions and the distances of long-range noise ...
Adaptive Order Tracking Technique Using Recursive Least-Square Algorithm
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Order tracking technique is one of the important tools for diagnosis of rotating machinery. Conventional methods of order tracking are primarily based on Fourier analysis with reference to shaft ...
Development and Implementation of a Semi-Adaptive H∞ Active Control Algorithm for Duct Noise
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A hybrid active noise control (ANC) scheme for suppressing duct noise based on the H ∞ control synthesis is proposed. The controllers are designed in terms of performance, stability, and ...