Patents by Inventor Feixiong GAO

Feixiong GAO 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 directly planning reentry trajectory in height-velocity profile
    Patent number: 11079239
    Abstract: A method for directly planning a reentry trajectory in a height-velocity profile includes the following steps: S1, extracting an actual working parameter of an aircraft, setting the maximum value {dot over (Q)}max of a stagnation point heat flux, the maximum value qmax of dynamic pressure, and the maximum value nmax of overload according to the mission requirement, and solving the height-velocity boundary of the reentry trajectory, that is, a lower boundary of the reentry trajectory in the height-velocity profile; S2, solving a reentry trajectory of an initial descent stage according to differential equations of reentry motion, and determining a starting point of a trajectory of a gliding stage according to the trajectory of the initial descent stage; and S3, planning a trajectory in the height-velocity profile satisfying terminal constraints based on the lower boundary in the height-velocity profile, and calculating a corresponding bank angle, to obtain the reentry trajectory.
    Type: Grant
    Filed: September 24, 2020
    Date of Patent: August 3, 2021
    Assignee: DALIAN UNIVERSITY OF TECHNOLOGY
    Inventors: Wenya Zhou, Zhentao Nie, Feng Yang, Kai Liu, Guanjun Wang, Zhe Li, Honggang Xu, Feixiong Gao
  • METHOD FOR DIRECTLY PLANNING REENTRY TRAJECTORY IN HEIGHT-VELOCITY PROFILE
    Publication number: 20210164783
    Abstract: A method for directly planning a reentry trajectory in a height-velocity profile includes the following steps: S1, extracting an actual working parameter of an aircraft, setting the maximum value {dot over (Q)}max of a stagnation point heat flux, the maximum value qmax of dynamic pressure, and the maximum value nmax of overload according to the mission requirement, and solving the height-velocity boundary of the reentry trajectory, that is, a lower boundary of the reentry trajectory in the height-velocity profile; S2, solving a reentry trajectory of an initial descent stage according to differential equations of reentry motion, and determining a starting point of a trajectory of a gliding stage according to the trajectory of the initial descent stage; and S3, planning a trajectory in the height-velocity profile satisfying terminal constraints based on the lower boundary in the height-velocity profile, and calculating a corresponding bank angle, to obtain the reentry trajectory.
    Type: Application
    Filed: September 24, 2020
    Publication date: June 3, 2021
    Applicant: DALIAN UNIVERSITY OF TECHNOLOGY
    Inventors: Wenya ZHOU, Zhentao NIE, Feng YANG, Kai LIU, Guanjun WANG, Zhe LI, Honggang XU, Feixiong GAO