高速平滑S曲线加减速速度控制算法研究
发布时间：2019-05-29 00:15
【摘要】：针对S型曲线加减速算法的加加速度曲线是阶跃变化的,即其存在拐点,在高速加工过程中容易引起数控机床的冲击与振动,提出了能避免加加速度阶跃变化的平滑S型曲线加减速控制算法,根据曲线长度将平滑S型曲线加减速控制分为完整平滑加减速过程和不完整平滑加减速过程,并都建立了详细的算法。最后用流量计转子截面曲线摆线段作为实例并与S曲线加减速控制算法进行了仿真对比,验证该算法的正确性。验证结果表明:该算法不仅可保证速度和加速度连续,而且加加速度也呈线性规律变化,避免了加减速过程中的加加速度阶跃现象,提高了数控系统加减速平滑性、柔性。
[Abstract]:The acceleration curve of S-shaped curve acceleration and deceleration algorithm is step by step, that is, it has inflection point, which can easily cause the impact and vibration of NC machine tool in the process of high speed machining. A smooth S-shaped curve acceleration and deceleration control algorithm is proposed to avoid the step change of acceleration. According to the curve length, the smooth S-shaped curve acceleration and deceleration control is divided into complete smooth acceleration and deceleration process and incomplete smooth acceleration and deceleration process. And the detailed algorithms are established. Finally, the cycloid section of the rotor section curve of the Flowmeter is taken as an example and compared with the S curve acceleration and deceleration control algorithm to verify the correctness of the algorithm. The verification results show that the algorithm can not only ensure the continuity of velocity and acceleration, but also change linearly, avoid the acceleration step phenomenon in the process of acceleration and deceleration, and improve the smoothness and flexibility of acceleration and deceleration of NC system.
【作者单位】： 阜阳职业技术学院工程科技学院;合肥工业大学机械与汽车工程学院;
【基金】：国家自然科学基金(51275147) 安徽省自然科学重点项目基金(KJ2015A437)
【分类号】：TG659
本文编号：2487484
[Abstract]:The acceleration curve of S-shaped curve acceleration and deceleration algorithm is step by step, that is, it has inflection point, which can easily cause the impact and vibration of NC machine tool in the process of high speed machining. A smooth S-shaped curve acceleration and deceleration control algorithm is proposed to avoid the step change of acceleration. According to the curve length, the smooth S-shaped curve acceleration and deceleration control is divided into complete smooth acceleration and deceleration process and incomplete smooth acceleration and deceleration process. And the detailed algorithms are established. Finally, the cycloid section of the rotor section curve of the Flowmeter is taken as an example and compared with the S curve acceleration and deceleration control algorithm to verify the correctness of the algorithm. The verification results show that the algorithm can not only ensure the continuity of velocity and acceleration, but also change linearly, avoid the acceleration step phenomenon in the process of acceleration and deceleration, and improve the smoothness and flexibility of acceleration and deceleration of NC system.
【作者单位】： 阜阳职业技术学院工程科技学院;合肥工业大学机械与汽车工程学院;
【基金】：国家自然科学基金(51275147) 安徽省自然科学重点项目基金(KJ2015A437)
【分类号】：TG659
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，本文编号：2487484
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