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whitening values of the gray steady state values in Tables 2–4, it can be seen that FGCN model can converge to a precise equilibrium point and the control nodes reach the target range though the initial... with a certain degree of gray scale, and the outputs of the system can converge to the steady state that satisfies the control range. References [1] LI Dong-bo, JIANG Ji-mu. Present situation......
广义Gray码及Walsh函数邹建成,铁小匀摘 要:利用广义 Gray码构造了一类有新次序的 Walsh函数 ,并把相关结果推广到三角域情形关键词:广义Gray码;Walsh函数;三角域;......
; Fuzzy iterative learning control of electro-hydraulic servo system for SRM direct-drive volume control hydraulic press ZHENG Jian-ming(郑建明)1, 2, ZHAO Sheng-dun(赵升吨)1, WEI Shu-guo(魏树国)1 1. School of Mechanical Engineering, Xi......
基于灰色预测的模糊免疫PID控制器在板厚控制系统中的应用任新意1,杜凤山1,黄华贵1,张尚斌1(1.河北省秦皇岛市燕山大学机械工程学院机械系)摘 要:针对冷连轧板厚控制系统中存在非线性,时变和时滞等缺点,提出了一种基于灰色预测的模糊免疫PID控制策略.该控制策略借鉴生物免疫系统中的调节作用和模糊推理逻辑可逼近非线性函数的特性,将模糊控制和免疫反馈机理与传统PID控制相结合.同时将灰色预测在线应用,用其预测结果代替被控对象的测量值,与给定输入的偏差及偏差变化率作为模糊控制器的输入来调整PID控制器的参数.仿真及现......
J. Cent. South Univ. (2012) 19: 1839-1845 DOI: 10.1007/s11771-012-1217-9 Semi-active control of a vehicle suspension using magneto-rheological damper JIANG Xue-zheng(蒋学争)1, WANG Jiong(王炅)1, HU... the vehicle suspension. On-off skyhook controller and Fuzzy-Lyapunov skyhook controller (FLSC) were employed to control the input current for MR damper so as to achieve the desired damping force. Tests......
J. Cent. South Univ. Technol. (2011) 18: 1969-1975 DOI: 10.1007/s11771-011-0930-0 Continuity control method of cutter posture vector for efficient five-axis machining HWANG Jong-dae, KIM Sang-myung...-space algorithm for interference avoidance, an MB-spline algorithm for continuous control was intended to create a five-axis machining tool path with excellent surface quality and economic feasibility......
J. Cent. South Univ. Technol. (2010) 17: 537-543 DOI: 10.1007/s11771-010-0519-z Motion control of thrust system for shield tunneling machine YANG Hua-yong(杨华勇), SHI Hu(施虎), GONG Guo-fang(龚国芳) State Key Laboratory of Fluid Power Transmission and Control, Zhejiang University, Hangzhou 310027, China ? Central South University Press and Springer-Verlag Berlin Heidelberg 2010 ......
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Effect of inoculating addition on machinability of gray cast iron TIAN Baohong1,MA Zhanhong1,LIU Weiming1,LI Fengjun2,REN Fengzhang1 (1.School of Materials Science and Engineering,Henan University... 471003,China) Abstract:Gray cast irons were inoculated with FeSi75+RE and FeSi75+Sr inoculants. The changes of apex angle of the drills before and af-ter being used were used to evaluate machinability......
一种新的岩体质量综合评价方法初探吕志云1(1.青海省海西蒙古族藏族自治州青海省第六地质矿产勘查院)摘 要:工程岩体分级是进行矿山建设和矿山井巷围岩变形控制的基本参考依据.一般情况下通过实验取得的指标为单因素指标,按单指标对岩体进行分类只是利用了岩体的部分特征,无法全面地对一种岩体的质量进行综合评价.根据灰色关联理论,矿山岩体系统可看成是部分信息已知,部分信息未知的灰色系统;根据目前矿山岩体质量评价的基本方法,对已经取得普氏系数法,岩心质量指标法以及龟裂系数法等指标的岩体应用灰色关联理论建立了综合评价模型,并以青......
