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structure control ZHANG You-wang(张友旺)1, GUI Wei-hua(桂卫华)2 (1. School of Mechanical and Electrical Engineering, Central South University, Changsha 410083, China; 2. School of Information Science... of secondary uncertainty. At the same time, gain adaptive sliding mode variable structure control(GASMVSC) was employed to synthesize the control effort. The results show that the unrealization......
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with an SXD100/3-CNC numerical control power spinning machine. The unidirectional tensile tests were carried out. Based on the experimental data, a ternary quadratic regression equation was established by orthogonal experiment. The Ramberg-Osgood constitutive model of tin-bronze connecting rod bushing was obtained. Referred to the constitutive relation of macroscopic incremental, the incremental elastoplastic......
: According to the measured results of roadbed settlement, the change law of settlement was analyzed and the accuracy was compared using three gray prediction models. The optimal gray prediction model was chosen to predict the final roadbed settlement, and modified gray target decision theory was used to comprehensively analyze the effect factors of roadbed settlement, then off-target distances were......
棒线材热连轧过程综合数值模拟系统的开发及应用姚俊1,唐广波1,刘正东1,马宝国2(1.北京市钢铁研究总院结构材料研究所2.宝山钢铁股份有限公司)摘 要:为方便考察生产线布置,轧制工艺参数等对棒线材在热连轧生产过程中变形,温度和组织演变的影响,采用Fortran语言编写核心计算模块,SQL Server 2000开发数据库及数据库管理模块,VB语言编写人机交互界面,开发了棒线材热连轧过程综合数值模拟系统.利用开发的系统针对宝山钢铁股份有限公司特殊钢分公司棒材生产线生产GCr15轴承钢棒材的实际工艺参数进行了计算,......
-linear state error feedback and extended state observer are designed respectively. The parameters of the controller are adjusted by the gray wolf algorithm [27, 28]. The validity of the control... J. Cent. South Univ. (2020) 27: 3733-3743 DOI: https://doi.org/10.1007/s11771-020-4573-x Research on improved active disturbance rejection control of continuous rotary motor electro-hydraulic servo......
简单规则下Vote Control问题的复杂性分析秦勤,王雪瑞,李建河南工程学院计算机学院摘 要:给定候选人集合C,投票集合V=(v1,v2,…,vn)和候选人c∈C,是否存在V的子集V’,|V’|≤k,使得c∈r(V\V’).该问题在不同的得分规则下复杂性是不同的.在plurality规则的基础上证明了Reto规则下Vote Control问题是多项式时间可解的,并给出了k’-approval规则下该问题是NP-Complete的证明.关键词:Vote Control问题;复杂性;得分规则;......
algorithm based on gray association rule in aluminum electrolysis control[J]. The Chinese Journal of Nonferrous Metals, 2004, 14(3): 494-498. [13] Ciocca G, Schettini R. A relevance feedback... 文献标识码:A 文章编号:1672-7207(2008)05-0881-06 Gray association rule based on rotary kiln flame image retrieval ZHANG......
of object was evaluated. The gray correlation theory was used to calculate correlation between each evaluation indicator and risk evaluation result, and the formal concept analysis (FCA) was used... value to prestressed anchorage cable support. Key words: prestressed anchorage cable; risk evaluation; formal concept analysis; gray correlation theory 岩土工程灾害越来越受到人们的重视.预应力锚索具有扰动小,施工快速高效等特点,因此,被作为一种......
Effect of inoculating addition on machinability of gray cast iron任凤章1,2,刘伟明1,马战红1,田保红11. School of Materials Science and Engineering,Henan University of Science and Technology,Luoyang 471003,China摘 要:Gray cast irons were inoculated with FeSi75+RE and FeSi75+Sr inoculants. The changes of apex angle of the drills before and after being used were used......
