A flexible electronic shogging system was presented based on rotary type servo motor,which aimed to improve the dynamic response of the shogging drive and decrease the impact of the guide bar during the higher speed r...A flexible electronic shogging system was presented based on rotary type servo motor,which aimed to improve the dynamic response of the shogging drive and decrease the impact of the guide bar during the higher speed running of warp-knitting machine.In this system,the speed control mode,faster response servo motor,no-flat modified trapezoid motion law,and its electronic cam were chosen;the realization standard and method were also introduced in details.The speed response curves of loaded motor indicated that the system could satisfy the technology requirements of high-speed warpknitting machine which run at the speed of 1000 r/min in the experiments,and the vibration curves showed that the guide bar had weaker mechanical impact and higher dynamic response characteristics.The results indicated that the flexible electronic shogging system designed following the previous step was successful,and the design principle of the electronic shogging was testified validly.展开更多
This paper reports on progress made in the first 3 years of.ATR's 'CAM-Brain'Project, which aims to use 'evolutionary e.gi...,i.gi' techniques to build/grow/evolve a RAM-and-cellular-automata based...This paper reports on progress made in the first 3 years of.ATR's 'CAM-Brain'Project, which aims to use 'evolutionary e.gi...,i.gi' techniques to build/grow/evolve a RAM-and-cellular-automata based artificial brain consisting of thousands of interconnected neural network modules inside special hardware such as MITs Cellular Automata Machine 'CAM-8,i, or NTT's Content Addressable Memory System 'CAM-System'. The states of a billion (later a trillion) 3D cellular automata cells, and edlions of cellular automata rules which govern their state changes, can be stored relatively cheaply in giga(tera)bytes of RAM. After 3 years work, the CA rules are almost ready. MITt,,'CAM-8' (essentially a serial device) can update 200,000,000 CA cells a second. It is possible that NTT's 'CAM-System' (essentially a massively parallel device) may be able to update a trillion CA cells a second. Hence all the ingredients will soon be ready to create a revolutionary new technology which will allow thousands of evolved neural network modules to be assembled into artificial brains. This in turn will probably create not only a new research field, but hopefully a whole new industry,namely 'brain building'. Building artificial brains with a billion neurons is the aim of ATR's 8 year i,CAM-B,ai.,' research project, ending in 2001.展开更多
目的研究冷热循环对CAD/CAM树脂陶瓷复合材料表面粗糙度及形貌的影响。方法以树脂陶瓷复合材料LU(Lava Ultimate),CE(Cerasmart),HY(Hyramic润瓷),VE(Vita Enamic)为实验组,以长石质玻璃陶瓷VM(Vita Mark Ⅱ)为对照组,分别在抛光即刻和...目的研究冷热循环对CAD/CAM树脂陶瓷复合材料表面粗糙度及形貌的影响。方法以树脂陶瓷复合材料LU(Lava Ultimate),CE(Cerasmart),HY(Hyramic润瓷),VE(Vita Enamic)为实验组,以长石质玻璃陶瓷VM(Vita Mark Ⅱ)为对照组,分别在抛光即刻和经10000次冷热循环后(冷热循环仪设置高温55℃,低温5℃,浸水时间为30s),测量表面粗糙度R_(a)并进行统计学分析,扫描电子显微镜(SEM)观测试件表面形貌。结果在抛光即刻,LU、CE、HY和VE组的R_(a)值在0.095~0.106μm之间,组间差异均无统计学意义(P>0.05)。VM组R_(a)值最小,为(0.054±0.014)μm,与其他4组相比差异具有统计学意义(P<0.05)。经冷热循环后,各组材料R_(a)值均增大,但与抛光即刻相比差异无统计学意义(P>0.05)。老化后,VM组R_(a)值仍小于其他4组,差异具有统计学意义(P<0.05)。SEM下表面形貌无明显变化。结论经冷热循环后,CAD/CAM树脂陶瓷复合材料和玻璃陶瓷表面微结构均较稳定。展开更多
The structure and the production process for flying shear machine are introduced first.Then,a quintic polynomial is applied to the design of an electronic cam system for the rotary knife axis in short materials cuttin...The structure and the production process for flying shear machine are introduced first.Then,a quintic polynomial is applied to the design of an electronic cam system for the rotary knife axis in short materials cutting.The dimensionless equation for a quintic polynomial cam curve is deduced.Finally,the curve is plotted with the cam constructor integrated into Siemens engineering development software SCOUT and it is tested with a laboratory platform,which consists of a motion controller SIMOTION and motor drivers SINAMICS S120.The results show that the running stability of the flying shear machine and the position control accuracy of the rotary knife can be effectively improved by using the curve designed in this paper.展开更多
基金National Science and Technology Support Program,China(No.2012BAF13B03)China Textile Industry Association Technology Guidance Program(No.2011067)Jiangnan University Independent Research Funding Plan,China(No.JUSRP211A04)
文摘A flexible electronic shogging system was presented based on rotary type servo motor,which aimed to improve the dynamic response of the shogging drive and decrease the impact of the guide bar during the higher speed running of warp-knitting machine.In this system,the speed control mode,faster response servo motor,no-flat modified trapezoid motion law,and its electronic cam were chosen;the realization standard and method were also introduced in details.The speed response curves of loaded motor indicated that the system could satisfy the technology requirements of high-speed warpknitting machine which run at the speed of 1000 r/min in the experiments,and the vibration curves showed that the guide bar had weaker mechanical impact and higher dynamic response characteristics.The results indicated that the flexible electronic shogging system designed following the previous step was successful,and the design principle of the electronic shogging was testified validly.
文摘This paper reports on progress made in the first 3 years of.ATR's 'CAM-Brain'Project, which aims to use 'evolutionary e.gi...,i.gi' techniques to build/grow/evolve a RAM-and-cellular-automata based artificial brain consisting of thousands of interconnected neural network modules inside special hardware such as MITs Cellular Automata Machine 'CAM-8,i, or NTT's Content Addressable Memory System 'CAM-System'. The states of a billion (later a trillion) 3D cellular automata cells, and edlions of cellular automata rules which govern their state changes, can be stored relatively cheaply in giga(tera)bytes of RAM. After 3 years work, the CA rules are almost ready. MITt,,'CAM-8' (essentially a serial device) can update 200,000,000 CA cells a second. It is possible that NTT's 'CAM-System' (essentially a massively parallel device) may be able to update a trillion CA cells a second. Hence all the ingredients will soon be ready to create a revolutionary new technology which will allow thousands of evolved neural network modules to be assembled into artificial brains. This in turn will probably create not only a new research field, but hopefully a whole new industry,namely 'brain building'. Building artificial brains with a billion neurons is the aim of ATR's 8 year i,CAM-B,ai.,' research project, ending in 2001.
文摘目的研究冷热循环对CAD/CAM树脂陶瓷复合材料表面粗糙度及形貌的影响。方法以树脂陶瓷复合材料LU(Lava Ultimate),CE(Cerasmart),HY(Hyramic润瓷),VE(Vita Enamic)为实验组,以长石质玻璃陶瓷VM(Vita Mark Ⅱ)为对照组,分别在抛光即刻和经10000次冷热循环后(冷热循环仪设置高温55℃,低温5℃,浸水时间为30s),测量表面粗糙度R_(a)并进行统计学分析,扫描电子显微镜(SEM)观测试件表面形貌。结果在抛光即刻,LU、CE、HY和VE组的R_(a)值在0.095~0.106μm之间,组间差异均无统计学意义(P>0.05)。VM组R_(a)值最小,为(0.054±0.014)μm,与其他4组相比差异具有统计学意义(P<0.05)。经冷热循环后,各组材料R_(a)值均增大,但与抛光即刻相比差异无统计学意义(P>0.05)。老化后,VM组R_(a)值仍小于其他4组,差异具有统计学意义(P<0.05)。SEM下表面形貌无明显变化。结论经冷热循环后,CAD/CAM树脂陶瓷复合材料和玻璃陶瓷表面微结构均较稳定。
基金the Inner Mongolia Science&Technology Plan Project(No.102-510001)the Inner Mongolia Autonomous Region Science&Technology Innovation to Guide the Reward Project(No.102-413128)the Inner Mongolia Science and Technology Achievement Conversion Project(No.CHZH2018130)。
文摘The structure and the production process for flying shear machine are introduced first.Then,a quintic polynomial is applied to the design of an electronic cam system for the rotary knife axis in short materials cutting.The dimensionless equation for a quintic polynomial cam curve is deduced.Finally,the curve is plotted with the cam constructor integrated into Siemens engineering development software SCOUT and it is tested with a laboratory platform,which consists of a motion controller SIMOTION and motor drivers SINAMICS S120.The results show that the running stability of the flying shear machine and the position control accuracy of the rotary knife can be effectively improved by using the curve designed in this paper.
