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    Article

    Wind Farm Noise Uncertainty: Prediction, Measurement and Compliance Assessment

    In most jurisdictions containing wind farms, base noise limits have been set by local regulatory authorities, with the intention of protecting the amenity of surrounding communities. It is a standard requireme...

    Kristy L. Hansen, Branko Zajamsek, Colin H. Hansen in Acoustics Australia (2018)

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    Article

    Effectiveness of a passive-active vibration isolation system with actuator constraints

    In the prediction of active vibration isolation performance, control force requirements were ignored in previous work. This may limit the realization of theoretically predicted isolation performance if control...

    Lingling Sun, Wei Sun, Kongjie Song in Chinese Journal of Mechanical Engineering (2014)

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    Article

    EGO shape optimization of horn-loaded loudspeakers

    Horn-loaded loudspeakers increase the efficiency and control the spatial distribution of sound radiated from the horn mouth. They are often used as components in cinema sound systems where it is desired that ...

    Rick C. Morgans, Anthony C. Zander, Colin H. Hansen in Optimization and Engineering (2008)

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    Actuator Design and Deployment

    In structural acoustics and vibration, actuators are used to excite a structure for the purposes of modal analysis or active noise and vibration control. Here, the design of various actuators is discussed foll...

    Colin H. Hansen in Handbook of Signal Processing in Acoustics (2008)

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    Article

    Effect of External Excitations on a Nonlinear System with Time Delay

    The trivial equilibrium of a two-degree-of-freedom autonomous system may become unstable via a Hopf bifurcation of multiplicity two and give rise to oscillatory bifurcating solutions, due to presence of a time...

    J. C. Ji, Colin H. Hansen, **nye Li in Nonlinear Dynamics (2005)