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首页> 外文会议>39th aerospace mechanisms symposium >Implications of Underdamped Stepper Mechanism Performance and Damping Solution Methodology
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Implications of Underdamped Stepper Mechanism Performance and Damping Solution Methodology

机译：阻尼不足的步进机构性能和阻尼求解方法的含义

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摘要

When driving a stepper motor the control method of stepping the motor has a significant impact on the performance of the mechanism. When driving a stepper motor system with unipolar or wave method of control, the back-emf generated in the open, unregulated coil creates a stepper motor system that provides significantly less inherent damping compared to full bipolar control. Less damping results in higher overshoot, ringing, and potentially exciting mechanical resonances resulting in fatigue. In addition, a significantly underdamped system, particularly with significant load inertia, raises many concerns with mechanism life and performance. The mechanism described herein utilizes a Rotary Accelerometer (RA) for step counting as well as state-of-health monitoring [1]. Another consequence of an underdamped mechanism using accelerometers is that the RA data is of limited or no value, due to high overshoot acceleration. This paper presents a proven design approach to damp a stepper motor driven in a unipolar, wave fashion, or a system with significant inertia mismatch between the motor and the reflected load.
机译：当驱动步进电动机时，步进电动机的控制方法对机构的性能有重大影响。当使用单极或波动控制方法来驱动步进电机系统时，在未调节的开放式线圈中产生的反电动势会形成一个步进电机系统，与全双极控制相比，其固有阻尼要小得多。较小的阻尼会导致较高的过冲，振铃，并可能引起令人兴奋的机械共振，从而导致疲劳。另外，严重欠阻尼的系统，尤其是具有较大负载惯性的系统，引起了许多有关机构寿命和性能的问题。本文描述的机制利用旋转加速度计（RA）进行步数计数以及健康状态监测[1]。使用加速度计的阻尼机制不足的另一个结果是，由于过冲加速度高，RA数据的值有限或没有值。本文提出了一种行之有效的设计方法，以阻尼以单极，波形方式驱动的步进电机，或者在电机与反射负载之间存在明显的惯性失配的系统。

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  • 来源
  • 会议地点 Huntsville AL(US)
  • 作者

    Shane Brown; Scott Starin;

  • 作者单位

    Ball Aerospace Technologies Corp., Boulder CO;

    Ball Aerospace Technologies Corp., Boulder CO;

  • 会议组织
  • 原文格式 PDF
  • 正文语种 eng
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