Patents by Inventor Leandro Tadeu Roldão Perestrelo

Leandro Tadeu Roldão Perestrelo 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 for monitoring axial loads in structures by identifying natural frequencies
    Patent number: 11788926
    Abstract: The present invention relates to a method for monitoring axial loads in structures by identifying natural frequencies. The analyzed structures are made up of elements connected by means of contact and are subjected to tractive loads, such as mooring lines. The proposed method uses bench testing and a computer model of the structure to determine the variation in the natural frequencies in relation to the variation in load. Monitoring is carried out using vibration sensors, in particular accelerometers, laser position sensors or strain gauges, to measure the dynamic behaviour of the structure, a data capture and signal conditioning unit and a computer to correlate the load applied and the vibration behaviour using a computer algorithm, and also to present the result. The invention discloses an easy calibration method for the dimensional template of the structures in question, high accuracy and easy installation and operation in the field.
    Type: Grant
    Filed: November 23, 2018
    Date of Patent: October 17, 2023
    Assignees: BR2W SOLUCÕES LTDA., UNIVERSIDADE ESTADUAL DE CAMPINAS—UNICAMP
    Inventors: Pedro Luiz de Souza Pinto Filho, Felliphe Góes Fernandes Barbosa, Leandro Tadeu Roldão Perestrelo, Milton Dias Junior, Layse Freitas Boere de Moraes
  • METHOD FOR MONITORING AXIAL LOADS IN STRUCTURES BY IDENTIFYING NATURAL FREQUENCIES
    Publication number: 20220018729
    Abstract: The present invention relates to a method for monitoring axial loads in structures by identifying natural frequencies. The analyzed structures are made up of elements connected by means of contact and are subjected to tractive loads, such as mooring lines. The proposed method uses bench testing and a computer model of the structure to determine the variation in the natural frequencies in relation to the variation in load. Monitoring is carried out using vibration sensors, in particular accelerometers, laser position sensors or strain gauges, to measure the dynamic behaviour of the structure, a data capture and signal conditioning unit and a computer to correlate the load applied and the vibration behaviour using a computer algorithm, and also to present the result. The invention discloses an easy calibration method for the dimensional template of the structures in question, high accuracy and easy installation and operation in the field.
    Type: Application
    Filed: November 23, 2018
    Publication date: January 20, 2022
    Inventors: Pedro Luiz de Souza Pinto Filho, Felliphe Góes Fernandes Barbosa, Leandro Tadeu Roldão Perestrelo, Milton Dias Junior, Layse Freitas Boere de Moraes