Patents by Inventor Douglas Ryan Matthews

Douglas Ryan Matthews 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).

  • Utilization of fast-response pressure measurements to nonintrusively monitor blade vibration in axial compressors
    Patent number: 11199437
    Abstract: A method to monitor rotor blade vibration using unsteady casing pressure. The method applies a non-intrusive blade vibration monitoring technique by using an array of unsteady pressure sensors which may be flush-mounted in the casing of a compressor. The method comprises using spinning mode theory and temporal-spatial analysis to obtain frequency and nodal diameter information of spinning pressure waves associated with the rotor blade vibration. An example of the compressor can be a multistage axial compressor.
    Type: Grant
    Filed: April 9, 2020
    Date of Patent: December 14, 2021
    Assignee: Purdue Research Foundation
    Inventors: Nicole Leanne Key, Yujun Leng, Nicholas Joseph Kormanik, III, Fangyuan Lou, Douglas Ryan Matthews
  • UTILIZATION OF FAST-RESPONSE PRESSURE MEASUREMENTS TO NONINTRUSIVELY MONITOR BLADE VIBRATION IN AXIAL COMPRESSORS
    Publication number: 20200333178
    Abstract: The present disclosure relates to a novel method to monitor rotor blade vibration using unsteady casing pressure. The novel method applies a non-intrusive blade vibration monitoring technique by using an array of unsteady pressure sensors flush-mounted in the casing of a multistage axial compressor. The novel method comprises using spinning mode theory to obtain frequency and nodal diameter information for all pressure waves that can be identified and determining any of the pressure waves that is associated with blade vibration.
    Type: Application
    Filed: April 9, 2020
    Publication date: October 22, 2020
    Applicant: Purdue Research Foundation
    Inventors: Nicole Leanne Key, Yujun Leng, Nicholas Joseph Kormanik, III, Fangyuan Lou, Douglas Ryan Matthews