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基于粒子群算法的信封机同步控制系统设计 被引量:3
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作者 马长华 朱伟兴 蔡勇刚 《沈阳工业大学学报》 EI CAS 北大核心 2019年第4期433-439,共7页
为了解决传统机械总轴同步控制信封机存在的系统结构复杂、灵活性差、工作噪声大以及长期运转造成的机械磨损导致同步控制精度下降等问题,设计了以数字信号处理器和伺服驱动器为核心的自动信封包装机多电机同步控制系统.系统采用多电机... 为了解决传统机械总轴同步控制信封机存在的系统结构复杂、灵活性差、工作噪声大以及长期运转造成的机械磨损导致同步控制精度下降等问题,设计了以数字信号处理器和伺服驱动器为核心的自动信封包装机多电机同步控制系统.系统采用多电机主从同步控制方式,通过PID算法改善系统的同步性能,并应用粒子群算法对PID参数整定得出最优参数.结果表明,该多电机同步控制系统超调量为零,响应速度为0. 15 s,能够满足信封生产同步精度高、响应速度快及稳定性能好的要求,具有较高的应用价值. 展开更多
关键词 信封机 数字信号处理器 伺服驱动器 主从同步控制 多电同步控制 PID算法 粒子群算法 同步精度
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我国国产信封机市场预测
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作者 陈守泽 《包装与食品机械》 CAS 1997年第2期27-28,共2页
关键词 信封机 国产设备 市场预测
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全自动中西式两用信封机申城亮相
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作者 缪惟民 《包装世界》 2006年第4期48-48,共1页
2006中国国际全印展上,票据印刷和标签印刷设备的领军企业上海新闵太阳机械有限公司,携一款最新研制成功的TFC—Ⅱ全自动中西式两用信封机及MROF-800BA(18″)多联票据印刷机、TLC250—8C卫星式不干胶轮转印刷机等几款具有代表性的... 2006中国国际全印展上,票据印刷和标签印刷设备的领军企业上海新闵太阳机械有限公司,携一款最新研制成功的TFC—Ⅱ全自动中西式两用信封机及MROF-800BA(18″)多联票据印刷机、TLC250—8C卫星式不干胶轮转印刷机等几款具有代表性的高端设备在申城亮相。 展开更多
关键词 中国国际全印展 轮转印刷 印刷设备 票据印刷 有限公司 研制 信封机
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Determining the approach speed envelope of carrier aircraft 被引量:3
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作者 Geng Jianzhong Yao Hailin Duan Zhuoyi 《Engineering Sciences》 EI 2013年第6期19-23,31,共6页
Many factors,such as deck motion and air wave,influence the determination of the approach speed which has an important effect on landing safety. Until recently,there are no design criteria about approach speed of carr... Many factors,such as deck motion and air wave,influence the determination of the approach speed which has an important effect on landing safety. Until recently,there are no design criteria about approach speed of carrier aircraft in the current standards and available publications. Therefore,the requirements of stall margin, longitudinal acceleration ability,altitude correction and field-of-view on approach speed were researched. Based on the flight dynamics model,the flight simulations were conducted to study the effect of the response time of engine,wave off requirements,elevator efficiency and deflection rate on the approach speed. The results presented that the approach longitudinal acceleration and altitude correction ability had crucial influence on the approach speed envelope of the aircraft. The limitations of the control requirements,field- of- view requirements and gear were also given through the simulation and analysis. Based on the above results,the approach speed envelope were determined. 展开更多
关键词 carrier aircraft approach speed altitude correction handling quality landing safety
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Envelope Solitons Perturbed by Stochastic Noise
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作者 REN Xi-Mei ZENG Shang-You ZHAO De-Jiang TANG Yi 《Communications in Theoretical Physics》 SCIE CAS CSCD 2009年第11期897-900,共4页
We perform langevin dynamics simulation for envelope solitons in an FPU-β lattice,with the nearestneighborinteraction and quartic anharmonicity.We get the motion equations of our discrete system by adding noiseand da... We perform langevin dynamics simulation for envelope solitons in an FPU-β lattice,with the nearestneighborinteraction and quartic anharmonicity.We get the motion equations of our discrete system by adding noiseand damping to the set of deterministic motion equations.We define'half-time'as the time when the amplitude of theenvelope soliton decreases by half due to damping.And then the mass,center and half-time of the perturbed envelopesoliton are numerically simulated,beginning with the discrete envelope soliton at rest.Results show successfully hownoise affects behavior of the envelope soliton. 展开更多
关键词 envelope soliton noise DAMPING
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