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首页> 外文期刊>Journal of guidance, control, and dynamics >Selective Self-Locking Actuator and Control Allocation Approach for Thermal Load Minimization
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Selective Self-Locking Actuator and Control Allocation Approach for Thermal Load Minimization

机译：选择性自锁执行器和控制分配方法，用于最小化热负荷

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摘要

Waste thermal energy generated by a flight control system and its actuators represents one component of the total thermal load on an aircraft. A novel actuator concept was paired with a control allocation strategy to reduce waste thermal energy produced by a flight control system. A concept for a fail-safe selectively self-locking power screw was introduced that combines the benefits of low-friction motion with the ability to hold loads with zero motor current. When coupled with a control allocation method that penalizes actuator movement from one time step to the next, simulations showed the ability of the approach to reduce waste thermal energy when compared with typical electromechanical and control allocation approaches. Simulations of individual actuators showed significant reductions in waste thermal energy in cases where static loads were held for long periods of time and the vehicle was not aggressively maneuvering, suggesting that an selectively self-locking actuator accompanied by a minimum movement control allocation strategy could be particularly well suited for cruise flight. In cases in which the vehicle engaged in aggressive maneuvers, the selectively self-locking actuator performed better than the backdrivable actuator, but only by a slight amount.
机译：飞行控制系统及其执行器产生的废热能占飞机总热负荷的一个组成部分。将新颖的执行器概念与控制分配策略结合使用，以减少飞行控制系统产生的废热能。引入了一种故障安全的选择性自锁动力螺钉的概念，该概念结合了低摩擦运动的优点以及能够在零电机电流的情况下保持负载的能力。当与惩罚执行器从一个时间步到下一步的运动的控制分配方法相结合时，仿真结果表明，与典型的机电和控制分配方法相比，该方法具有减少废热能的能力。单个执行器的仿真显示，在长时间保持静态负载且车辆未进行积极机动的情况下，废热能显着减少，这表明选择性自锁执行器以及最小运动控制分配策略尤其有用非常适合邮轮飞行。在车辆进行激进操纵的情况下，选择性自锁致动器的性能要优于可逆驱动的致动器，但仅表现出少量。

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  • 来源
    《Journal of guidance, control, and dynamics》 |2015年第6期|1110-1118|共9页
  • 作者

    David B. Doman; Michael W. Oppenheimer; William Rone;

  • 作者单位

    Air Force Research Laboratory, Wright-Patterson Air Force Base, Ohio 45433-7531;

    Air Force Research Laboratory, Wright-Patterson Air Force Base, Ohio 45433-7531;

    Air Force Research Laboratory, Wright-Patterson Air Force Base, Ohio 45433-7531;

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