Annoying “whines” or discrete tonal noises often result from the normal operation of rotating equipment due to the even spacing of the basic load carrying elements. This applies to gear teeth, impeller blades, machine tool cutting blades, and snow tire treads, for instance. Whenever it is possible to unevenly space the elements, the “whines” can be effectively reduced. This paper uses snow tire tread noise to demonstrate a mathematical way for computing an uneven spacing so that the excitation or noise source is in the preferred form for whine reduction -- “white noise.” White noise is analogous to white light which is comprised of many colors, each color having a different frequency. Thus, a mechanical design is computed using a criterion described in the frequency domain. The method uses the mathematics associated with classical “frequency modulation” theory and, therefore, is called “Mechanical Frequency Modulation” or MFM.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Quieting Noise Mathematically — Its Application to Snow Tires


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:

    Kongress:

    Mid-Year Meeting ; 1969



    Erscheinungsdatum :

    1969-02-01




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch


    Schlagwörter :


    Electrostatic Charging and Noise Quieting

    Truax, Robert L. | SAE Technical Papers | 1970




    Quieting Heavy Machinery with Noise Cancellation Technology

    Denenberg, Jeffrey N. | SAE Technical Papers | 1992


    Quieting : a practical guide to noise control

    Berendt, Raymond Donald / Corliss, Edith L. R. / Ojalvo, Morris Solomon | TIBKAT | 1976