机构

• 长春光学精密机械与物... [1]
• 数学与系统科学研究院 [1]
• 紫金山天文台 [1]

采集方式

• OAI收割 [3]

内容类型

• 期刊论文 [2]
• 会议论文 [1]

发表日期

• 2022 [1]
• 2016 [1]
• 2010 [1]

学科主题

筛选

浏览/检索结果: 共3条，第1-3条 帮助 条数/页： 5101520253035404550556065707580859095100 排序方式： 请选择题名升序题名降序提交时间升序提交时间降序作者升序作者降序发表日期升序发表日期降序 Understanding the acceleration phenomenon via high-resolution differential equations 期刊论文  OAI收割 MATHEMATICAL PROGRAMMING, 2022, 卷号: 195, 期号: 1-2, 页码: 79-148 作者:  Shi, Bin;  Du, Simon S.;  Jordan, Michael, I;  Su, Weijie J.   |  收藏  |  浏览/下载：30/0  |  提交时间：2023/02/07 Convex optimization  First-order method  Polyak's heavy ball method  Nesterov's accelerated gradient methods  Ordinary differential equation  Lyapunov function  Gradient minimization   Hybrid optimization methodology of variable densities mesh model for the axial supporting design of wide-field survey telescope 期刊论文  OAI收割 OPTICAL ENGINEERING, 2016, 卷号: 55, 期号: 3 作者:  Wang, Hairen;  Lou, Zheng;  Qian, Yuan;  Zheng, Xianzhong;  Zuo, Yingxi 收藏  |  浏览/下载：25/0  |  提交时间：2016/09/27 hybrid optimization methodology  variable densities mesh model  axial support optimization  primary mirror  zero-order optimization method  first-order optimization method   Design and analysis of power system of micro-electromechanical actuator (EI CONFERENCE) 会议论文  OAI收割 2010 2nd International Conference on Industrial Mechatronics and Automation, ICIMA 2010, May 30, 2010 - May 31, 2010, Wuhan, China 作者:  Zhang J.;  Zhang J.;  Zhang J. 收藏  |  浏览/下载：23/0  |  提交时间：2013/03/25 In order to apply the electromechanical actuator to tactical mini-missiles  maximum rotational speed of output shafts is greater than 250/s. Test results basically correspond to the requirement of technical indexes. It is proved that this analysis and design method is congruent with the design of micro-electromechanical actuators  this paper researches on the key technology such as load-bearing ability  the system bandwidth can reach 25.3Hz on the condition of no load and 23.4Hz on the condition of load  thus the method is feasible. 2010 IEEE.  rapidity and miniaturization of the micro-electromechanical actuator power system based on the ball screw. First  according to specific technical indexes  the power  electromechanical time constant and the size of the motors are screened originally through theoretical analysis. Finally  based on the characteristics of ball screw transmission  load locus of the micro-electromechanical actuator dynamic system is theoretically analyzed and the optimum speed ratio is determined through parameter optimization. The results of the double closed loop controlled test on the principle prototype show: the system can operate normally with 2.5N.m hinge moment