The Experts below are selected from a list of 300 Experts worldwide ranked by ideXlab platform

Barmac K. Taleghani - One of the best experts on this subject based on the ideXlab platform.

  • Single Axis Piezoceramic Gimbal
    Journal of Intelligent Material Systems and Structures, 2001
    Co-Authors: Garnett C. Horner, Barmac K. Taleghani
    Abstract:

    This paper describes the fabrication, testing, and analysis of a single axis piezoceramic Gimbal. The fabrication process consists of pre-stressing a piezoceramic wafer using a high-temperature thermoplastic polyimide and a metal foil. The differential thermal expansion between the ceramic and metal induces a curvature. The piezoceramic is mounted on a support mechanism and a mirror is attached to the piezoceramic. A finite element analysis of the Gimbal is described and the predicted Gimbal angle versus applied voltage is compared to experimental results.

  • Single-axis piezoceramic Gimbal
    Smart Structures and Materials 1999: Industrial and Commercial Applications of Smart Structures Technologies, 1999
    Co-Authors: Garnett C. Horner, Barmac K. Taleghani
    Abstract:

    This paper describes the fabrication, testing, and analysis of a single axis piezoceramic Gimbal. The fabrication process consists of pre-stressing a piezoceramic wafer using a high-temperature thermoplastic polyimide and a metal foil. The differential thermal expansion between the ceramic and metal induces a curvature. The pre-stressed, curved piezoceramic is mounted on a support mechanism and a mirror is attached to the piezoceramic. A plot of Gimbal angle versus applied voltage to the piezoceramic is presented. A finite element analysis of the piezoceramic Gimbal is described. The predicted Gimbal angle versus applied voltage is compared to experimental results.

Garnett C. Horner - One of the best experts on this subject based on the ideXlab platform.

  • Single Axis Piezoceramic Gimbal
    Journal of Intelligent Material Systems and Structures, 2001
    Co-Authors: Garnett C. Horner, Barmac K. Taleghani
    Abstract:

    This paper describes the fabrication, testing, and analysis of a single axis piezoceramic Gimbal. The fabrication process consists of pre-stressing a piezoceramic wafer using a high-temperature thermoplastic polyimide and a metal foil. The differential thermal expansion between the ceramic and metal induces a curvature. The piezoceramic is mounted on a support mechanism and a mirror is attached to the piezoceramic. A finite element analysis of the Gimbal is described and the predicted Gimbal angle versus applied voltage is compared to experimental results.

  • Single-axis piezoceramic Gimbal
    Smart Structures and Materials 1999: Industrial and Commercial Applications of Smart Structures Technologies, 1999
    Co-Authors: Garnett C. Horner, Barmac K. Taleghani
    Abstract:

    This paper describes the fabrication, testing, and analysis of a single axis piezoceramic Gimbal. The fabrication process consists of pre-stressing a piezoceramic wafer using a high-temperature thermoplastic polyimide and a metal foil. The differential thermal expansion between the ceramic and metal induces a curvature. The pre-stressed, curved piezoceramic is mounted on a support mechanism and a mirror is attached to the piezoceramic. A plot of Gimbal angle versus applied voltage to the piezoceramic is presented. A finite element analysis of the piezoceramic Gimbal is described. The predicted Gimbal angle versus applied voltage is compared to experimental results.

Dong Hao - One of the best experts on this subject based on the ideXlab platform.

  • Stabilization Simulation Analysis of Four-axis & Five-Gimbal Stable Platform
    Computer Simulation, 2012
    Co-Authors: Dong Hao
    Abstract:

    A four-axis five-Gimbal stable platform on moving vehicle was generated against the extreme horizontal disturb,and it was composed of one level horizontal stable platform and two level two-axis three-gmibal stable platform which offer twice rejection to vehicle horizontal disturb.Though kinematic and dynamics characteristic analysis,stabilizing models of the horizontal stable platform,the two-axis three-Gimbal stable platform and the whole four-axis five-Gimbal stable platform were set up.Finally,the stable performance of the platform was simulated on the three typical environment of vehicle.The results indicate that the max error of the four-axis five-Gimbal stable platform is half of the two-axis three-Gimbal platform.

Wu Hongxin - One of the best experts on this subject based on the ideXlab platform.

  • Adaptive Compensation Control of Trajectory Tracking in Gimbal Angle Space for Single Gimbal Control Moment Gyroscope Systems
    Control theory & applications, 2001
    Co-Authors: Wu Zhong, Wu Hongxin
    Abstract:

    As inertial actuators mounted on the spacecraft, single Gimbal control moment gyroscope (SGCMG) systems can affect the attitude control accuracy to a great extent. In order to improve the trajectory tracking performance in Gimbal angle space for SGCMG systems, an adaptive compensation controller is adopted, which has three terms, i.e., proportional, differential, and adaptive compensation ones. This controller not only can realize finite time tracking control in Gimbal angle space, but also can make the tracking error converge to zero exponentially. Simulation results of a certain pyramid type 4 SGCMG system indicate that the control algorithm presented above is feasible.

Yuliya B. Konosevich - One of the best experts on this subject based on the ideXlab platform.

  • Global attraction of steady motions of a Gimbal-mounted asynchronous gyroscope
    Nonlinear Dynamics, 2014
    Co-Authors: Boris I. Konosevich, Yuliya B. Konosevich
    Abstract:

    The subject of consideration is a gyroscope mounted in the Gimbal (Cardan) suspension and placed on the immovable foundation in the field of gravity. Dissipative and control torques on the axes of Gimbals are supposed to be absent, but the fast rotating rotor is under the action of the frictional torque, and so the device is supplied with the asynchronous electric motor that forms a driving torque acting about the axis of rotation of the rotor in the inner Gimbal. The inner Gimbal serves as the stator of the motor. This device has a family of steady motions, which are steady precessions of the rotor about the outer Gimbal axis and steady rotations of the rotor about its axis of rotation in the inner Gimbal. In the paper, the global attraction property is proved for the set of steady motions. This means that every motion of the device tends to one of its steady motions as time tends to infinity. Outcomes of numerical simulation are presented to give a demonstration of this property.