Patents by Inventor Richard P G COGHLAN

Richard P G COGHLAN has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • METHOD OF MODIFYING EXCITATION RESPONSE CHARACTERISTICS OF A SYSTEM
    Publication number: 20120271458
    Abstract: A method of modifying excitation response characteristics of a structural system, including an aerofoil blade mounted to a support disc, including the steps: (a) identifying a limit cycle associated with the system; (b) determining the amplitude of the limit cycle; (c) comparing the amplitude of the limit cycle against a threshold value; and (d) if the amplitude of the limit cycle is greater than a threshold value, modifying the system to reduce the amplitude of the limit cycle.
    Type: Application
    Filed: April 11, 2012
    Publication date: October 25, 2012
    Applicant: ROLLS-ROYCE PLC
    Inventors: Alison J. MCMILLAN, Richard P G COGHLAN