The Experts below are selected from a list of 222 Experts worldwide ranked by ideXlab platform

Samim Y Unlusoy - One of the best experts on this subject based on the ideXlab platform.

W. Haddad - One of the best experts on this subject based on the ideXlab platform.

  • Nonlinear control of vehicle yaw rate via roll moment distribution
    Proceedings of 1994 American Control Conference - ACC '94, 1994
    Co-Authors: D. Williams, W. Haddad
    Abstract:

    A vehicle model is developed including nonlinear effects of weight transfer on Cornering Force generated by tires. By distributing a roll resisting moment between the front and rear axles, vehicle handling can be influenced. Results are reported for a controller derived using feedback linearization as well as an intuitive approach. Based on the simulation results, the intuitive controller was implemented on an active vehicle suspension, with results reported.

Ergin Tonuk - One of the best experts on this subject based on the ideXlab platform.

D. Williams - One of the best experts on this subject based on the ideXlab platform.

  • Nonlinear control of vehicle yaw rate via roll moment distribution
    Proceedings of 1994 American Control Conference - ACC '94, 1994
    Co-Authors: D. Williams, W. Haddad
    Abstract:

    A vehicle model is developed including nonlinear effects of weight transfer on Cornering Force generated by tires. By distributing a roll resisting moment between the front and rear axles, vehicle handling can be influenced. Results are reported for a controller derived using feedback linearization as well as an intuitive approach. Based on the simulation results, the intuitive controller was implemented on an active vehicle suspension, with results reported.

Mark H Lowenberg - One of the best experts on this subject based on the ideXlab platform.

  • Influence of Tire Inflation Pressure on Nose Landing Gear Shimmy
    Journal of Aircraft, 2010
    Co-Authors: Phanikrishna Thota, Mark H Lowenberg, Bernd Krauskopf, Eb Coetzee
    Abstract:

    This work investigates shimmy oscillations in the nose landing gear of a passenger aircraft and studies how they depend on changes in the tire inflation pressure. To achieve this, a mathematical model of a landing gear is considered that includes the influence of the tire pressure via different tire properties, such as Cornering Force and contact patch length. Experimental data obtained from two radial tires are used as a basis for modeling the influence of inflation pressure on tire properties. Bifurcation analysis of the mathematical model is then performed. It yields stability diagrams in the plane of velocity and vertical Force for different values of the tire inflation pressure. Specifically, two-parameter bifurcation diagrams for five different inflation pressures are presented. This allows the conclusion that for the type of tires considered, the landing gear is less susceptible to shimmy oscillations at higher than nominal inflation pressures.

  • Influence of tire inflation pressure on nose landing gear shimmy
    Journal of Aircraft, 2010
    Co-Authors: Phanikrishna Thota, Mark H Lowenberg, Bernd Krauskopf, Etienne Coetzee
    Abstract:

    This work investigates shimmy oscillations in the nose landing gear of a passenger aircraft and studies how they depend on changes in the tire inflation pressure.Toachieve this,amathematical model ofalanding gear isconsidered that includes the influence of the tire pressure via different tire properties, such as Cornering Force and contact patch length. Experimental data obtained from two radial tires are used as a basis for modeling the influence of inflation pressure on tire properties. Bifurcation analysis of the mathematical model is then performed. It yields stability diagrams in the plane of velocity and vertical Force for different values of the tire inflation pressure. Specifically, twoparameter bifurcation diagrams for five different inflation pressures are presented. This allows the conclusion that for the type of tires considered, the landing gear is less susceptible to shimmy oscillations at higher than nominal inflation pressures. Copyright © 2010 by the American Institute of Aeronautics and Astronautics, Inc.

  • Nonlinear analysis of the influence of tire inflation pressure on nose landing gear shimmy
    AIAA Modeling and Simulation Technologies Conference, 2009
    Co-Authors: Etienne Coetzee, Phanikrishna Thota, Bernd Krauskopf, Mark H Lowenberg
    Abstract:

    In this work we investigate shimmy oscillations in the nose landing gear of a passenger aircraft and consider how they depend on changes in the tyre inflation pressure. To achieve this, we consider a mathematical model of a landing gear that includes the influence of the tyre via different tyre properties, such as, Cornering Force, contact patch length, etc. Experimental data obtained from two radial tyres is then used as a basis to model the influence of inflation pressure on tyre properties. Bifurcation analysis of the mathematical model can then be performed. It yields stability diagrams in the plane of velocity and vertical Force for different values of the tyre inflation pressure. Specifically, we present two-parameter bifurcation diagrams for five different inflation pressures. This allows us to conclude that, for the type of tyres considered, the landing gear is less susceptible to shimmy oscillations at higher than nominal inflation pressures.

  • Nonlinear analysis of the influence of tyre inflation pressure on nose landing gear shimmy
    AIAA Modeling and Simulation Technologies Conference, 2009
    Co-Authors: Phanikrishna Thota, Bernd Krauskopf, Mark H Lowenberg
    Abstract:

    In this work we investigate shimmy oscillations in the nose landing gear of a passenger aircraft and consider how they depend on changes in the tyre inflation pressure. To achieve this, we consider a mathematical model of a landing gear that includes the influence of the tyre via different tyre properties, such as, Cornering Force, contact patch length, etc. Experimental data obtained from two radial tyres is then used as a basis to model the influence of inflation pressure on tyre properties. Bifurcation analysis of the mathematical model can then be performed. It yields stability diagrams in the plane of velocity and vertical Force for different values of the tyre inflation pressure. Specifically, we present two-parameter bifurcation diagrams for five different inflation pressures. This allows us to conclude that, for the type of tyres considered, the landing gear is less susceptible to shimmy oscillations at higher than nominal inflation pressures. Copyright © 2009 by the American Institute of Aeronautics and Astronautics, Inc.