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利用多项式构造堆取料机煤耙的理想运动曲线 总被引:1,自引:0,他引:1
堆取料机煤耙液压系统起动及换向时的速度变化剧烈,高速运行时冲击振动大,缓冲性能不理想.针对此问题,分析了液压缸运动曲线的构造要求,建立液压缸的数学模型,通过多项式推导出理想缓冲曲线方程,给出了该方程的理论依据.该速度曲线具有最小冲击的优点. 相似文献
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Such characteristics of aluminium strip and foil as soft and thin gauge make tension control one of the key techniques for automation gauge control(AGC). To avoid the disadvantage of traditional mathematical control method which is unfitful for nonlinear hysteresis, the technique for tension AGC fuzzy control was developed and thickness deviation more than 3% of product thickness was achieved consequently in 1 350 mm cold rolling mill of aluminium strip and foil. Additionally, because the gauge of aluminium strip and foil is thin, stage-cooling roll method becomes a key technique for profile control. So stage-cooling roll intelligent control method is developed and pre-coated aluminum foil with good profile less than 101 (the relative differences in elongation of 0.01%) is produced using the profile control system in 1 400 mm cold rolling mill of aluminium strip and foil. 相似文献
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