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Influence Due to the Blade Number on the Stator Tonal and Broadband Noise

期刊: ACOUSTICS AUSTRALIA, 2021; 49 (2)

The cascade's response function can be used to effectively deal with the unsteady response of the interaction between the harmonic turbulence and the ......

Sound-Absorption Mechanism of Structures with Periodic Cavities

期刊: ACOUSTICS AUSTRALIA, 2021; 49 (2)

A simplified finite element method (FEM) simulation method has been established and validated for analyzing the sound absorption mechanism of structur......

Application of a Chebyshev Collocation Method to Solve a Parabolic Equation Model of Underwater Acoustic Propagation

期刊: ACOUSTICS AUSTRALIA, ; ()

The parabolic approximation has been used extensively for underwater acoustic propagation and is attractive because it is computationally efficient. W......

A Comparison of Machine Health Indicators Based on the Impulsiveness of Vibration Signals

期刊: ACOUSTICS AUSTRALIA, ; ()

Vibration signals collected from machines can contain rich machine degradation information, such as impulsiveness and cyclo-stationarity. In the field......

Experimental Study of the Performance of a Propeller with Trailing-Edge Serrations

期刊: ACOUSTICS AUSTRALIA, ; ()

Experimental studies were conducted at a hemi-anechoic chamber to investigate the effectiveness of trailing-edge (TE) serration designs for reducing a......

Multizone Sound Field Reproduction Based on Equivalent Source Method

期刊: ACOUSTICS AUSTRALIA, ; ()

In this paper, the two-zone sound field reproduction problem is investigated with a newly proposed method. The aim of the two-zone reproduction proble......

Difference Factor of Vertical Beam Pattern for Shallow-Water Source Depth Discrimination

期刊: ACOUSTICS AUSTRALIA, 2021; 49 (1)

This study addresses the problem of source depth discrimination in the context of shallow-water acoustics. From the perspective of beam pattern correl......

Design of Tunable Acoustic Liner and Adaptive Control System

期刊: ACOUSTICS AUSTRALIA, 2021; 49 (1)

Traditional acoustic liners used in nacelles and fan ducts include a perforated face sheet bonded to a honeycomb core. A tunable acoustic liner with a......

On Robust Beamforming for Distorted Towed Linear Array Using Product Theorem

期刊: ACOUSTICS AUSTRALIA, 2020; 48 (2)

To solve the beamforming performance degradation problem of the towed linear array caused by the shape distortion, we propose a robust beamforming way......

Simulated Operational Path Analysis Method for the Separation of Intake and Exhaust Noises

期刊: ACOUSTICS AUSTRALIA, 2020; 48 (2)

The classical transfer path analysis (TPA) method has become a standard measurement method. It has high accuracy but remains a time-consuming and comp......

Efficient Acoustic Topology Optimization Using Vibro-Acoustic Coupled Craig-Bampton Mode Synthesis

期刊: ACOUSTICS AUSTRALIA, 2020; 48 (3)

Continuum topology optimization is an effective way to reduce vibration and noise of vibro-acoustic coupling system. However, the high computation tim......

Acoustic Properties of Multilayered Structures

期刊: ACOUSTICS AUSTRALIA, 2020; 48 (3)

The acoustic performance of multilayered structures (MLSs) can be identified by experiments and calculation models that use commercially available sof......

Effect of Blade Outlet Angle on Acoustics of Marine Centrifugal Pump

期刊: ACOUSTICS AUSTRALIA, 2020; 48 (3)

To research the effect of blade outlet angle on acoustics of marine centrifugal pump, the unsteady numerical simulation analysis of the four models is......

A Study on Active Noise Reduction of Automobile Engine Compartment Based on Adaptive LMS Algorithm

期刊: ACOUSTICS AUSTRALIA, 2020; 48 (3)

The engine compartment is the main source of automobile noise. In this paper, based on the study of the noise characteristics of the engine compartmen......

Study on Aerodynamic Noise Numerical Simulation and Characteristics of Safety Valve Based on Dipole and Quadrupole

期刊: ACOUSTICS AUSTRALIA, 2020; 48 (3)

Aiming at the problem that it is difficult to accurately predict the aerodynamic noise in the safety valve exhaust process, a new numerical simulation......

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