Patents by Inventor Efstratios Nikolaidis

Efstratios Nikolaidis 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).

  • System and method for importance sampling based time-dependent reliability prediction
    Patent number: 8781672
    Abstract: A system and a method of generating a reliability prediction for components of a vehicle. The system and the method include implementing importance sampling in dynamic vehicle systems when the vehicle is subjected to time-dependent random terrain input. Alternatively, simulation data may be implemented. The system and the method include determining a decorrelation length, scaling up the standard deviation of white noise, and calculation of a likelihood ratio.
    Type: Grant
    Filed: August 4, 2011
    Date of Patent: July 15, 2014
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Amandeep Singh, Efstratios Nikolaidis, Zissimos P. Mourelatos
  • Method for determining joint stiffness degradation
    Patent number: 6564156
    Abstract: A method of determining joint stiffness degradation in structure 10 is provided including a first exciting of the structure 18, a first measuring of transfer function and frequency response function 20, simulating a mileage accumulation process of the structure 16 performed after the first exciting 18 and the first measuring 20, a second exciting of the structure 22, performed after the simulating a mileage accumulation process 16, a second measuring of frequency response function 24 performed after the simulating a mileage accumulation process 16 and calculating the change in joint stiffness 26 using the first measuring 20 and the second measuring 24.
    Type: Grant
    Filed: March 13, 2001
    Date of Patent: May 13, 2003
    Assignee: Ford Global Technologies, Inc.
    Inventors: Everett You-Ming Kuo, A. Mangala Mahinda Jayasuriya, Efstratios Nikolaidis, Richardo Anibal Burdisso
  • Method for determining joint stiffness degradation
    Publication number: 20020161531
    Abstract: A method of determining joint stiffness degradation in structure 10 is provided including a first exciting of the structure 18, a first measuring of transfer function and frequency response function 20, simulating a mileage accumulation process of the structure 16 performed after the first exciting 18 and the first measuring 20, a second exciting of the structure 22, performed after the simulating a mileage accumulation process 16, a second measuring of frequency response function 24 performed after the simulating a mileage accumulation process 16 and calculating the change in joint stiffness 26 using the first measuring 20 and the second measuring 24.
    Type: Application
    Filed: March 13, 2001
    Publication date: October 31, 2002
    Inventors: Everett You-Ming Kuo, A. Mangala Mahinda Jayasuriya, Efstratios Nikolaidis, Richardo Anibal Burdisso