Wang Xuanmin , Yang Fukang Department of Civil Engineering
Abstract:In this paper, based on the properties of cylindrcal framed-tube sturctures subjected to lateral load and the bending theory of shells, thedifferential equations of equilibrum ars established and the analytic solutionsare found. The method in this paper i
Tan Shurong , Cao Chenzhong Guangdong College of Education Xiangtan Teachers College
Abstract:The ring--opening polymerization of bis phenylene orthocarbo-nate, bis (2,2'--biphenylene) orthocarbonate and 2,2'--biphenylene phenylene-orthocarbonate was investigated under different conditions in this paper. TheDTA curve and the inherent viscosity wer
Huang Pingan Department of Applied Mathematics
Abstract:本文考虑群的自同构群,得到了DC_(4n),QD_(8n)及MC_(4q)的自同构群的结构,我们有:①若n≥3,则AutDC_(4n)≌HolC_(2n)②若n≥2,则An在QD_(8n)≌AutC_(4n)∝C_(2n)。③若q≡1(mod4),则AutMC_(4q)≌HolC_q。
Ji Tiaohe , Zheng Lingsan Department of Chemistry , Chemical Engineering
Abstract:The Lissajous graph method is used to study the reactionmechanism of the compositions of GKC bronze series electrolytic colouringliquid as well as the effects of the process parameters. The possibility ofcolouring control is investigated. A new idea that
Chen Donggui Department of Applied Mathematics
Abstract:In this paper, by using an embedding method combined withNewton iteration procedure we discuss a class of nonlinear Riemann--Hilbertboundary value problem with 2n+1 additional conditions for a nonlinearelliptic system of first order in the plane. For this
Yu Jianshe , Qian Xiangzheng Department of Applied Mathematics
Abstract:In this paper, we consider Li?nard equation x+f(x)x+g(x)=0.(1) Some sufficient conditions for ensuring that (1) has at least orat most one limit cycle are given, which improve the results in [2--6].
Li Xuye , Wu Yi , Peng Kuan Department of Mechanical Engineering
Abstract:In this paper, the figures of the isothermal transformation(IT) and heating isothermal transformation (HIT) for medium--manganesecast steels have been surveyed and drawn, and their similarities and differ-ences have been compared. The law of the structure
Xie Yanwei , Sun Xuemeng , Luo Guo-an , Li Meilin Department of Mechanical Engineering
Abstract:In this paper,the calculating and the experimental method developedby authors are applied to make theoretical analysis and data determination of thetemperature and the stress field for a modelling structure of the hot space'scylinder head in a real Stirli
Lin Cheng , Yang Weike Department of Mechanical Engineering
Abstract:The Chisel edge has a significant influence on drill cuttingperformance and this is closely related to the chisel edge profile and angledistributions which are determined by the geometrical parameters of drillpoints. In this paper, based on the accurate m
Yang Shouzhang , Gu Duyi , Yi Deming , Xu Huirong Department of Mechanical Engineering
Abstract:In this paper, based on analyzing and comparing some typicalmethods of measuring temperature in drilling in the world, present a newmeasuring temperature method. This method may give simultaneously theinstantaneous temperatures of cutting edge on the dril
Yu Jueqi , Zhang Sufen Department of Mechanical Engineeing
Abstract:Many reserchers have so far proposed that the active agents ofaluminum brazing fluxes are chlorides of heavy metal elements, however,this proposal seems to be not precise. In fact, most of the heavy metal chlo-rides could not be used as active agents. Mor
Hu Jiatang Department of Mechanical Engineering
Abstract:Fuller twin countershaft transmission is a new type of produ-ct which has not yet been produced in large quantities in our country, butthe productive technology has imported from the United States of America.It has opened up a new path for the design of h
Yin Xiangdong , Li Chuanqian Department of Mechanical Engineering
Abstract:The influence of drill wear on the dynamics of accelerationsignals of the vibration during drilling is investigated in this paper. It isfound that the sensitive frequency compon ent of the acceleration signal varieswith the increase of drill wear in a cle
Tang Yingshi , Tang Jiashi Department of Mechanical Engineering Department of Engineering Mechanics
Abstract:The Automobile suspension system using main and auxiliaryspring is nonlinear. On the basis of nonlinear vibration theory, this paperdiscusses the calculation of natural frequencies in motor vehicle whose frontand rear suspension system can not be separate
Chen Xingxiang Department of Mechanial Engineering
Abstract:The heat pipe heat exchanger is a new kind of heat exchanger,which is an excellent device to recover industrial waste heat. This paper introduces the computer--aided design for heat pipe heat exchanger. It can beused in the design of gas--gas type or gas-
Li Xiaowen , Li Fuhai Department of Electrical Engineering
Abstract:本文介绍一种新研制出的挖掘机特性测试仪。仪器应用微机技术、自动采集挖掘机特性的电压和电流数据、可在通用示波器上显示或X—y记录仪绘出挖掘机特性曲线。输入标准特性参数后,自动计算并打印出丰满系数,电流和电压测试数据。采样速度为2160点/秒,精度为±1%,量程满足目前使用的4~23m~3电铲.仪器工作可靠,操作维护方便,为挖掘机的调试提供了一个先进的工具。
Shen Guangwen Dapartment of Electrical Engineering
Abstract:The basic method and steps for optimization of the designscheme of large hydraulic turbine set is discussed in the viewpoint of systemengineering in this paper. We consider first the optimal choise of thestructure parameters, technical characteristics, an
Luo Wenbin Department of Electrical Engineering
Abstract:This paper presents the software and auxiliary circuits of a100channeldata logger which implemented by a CMC--80 single chip micro-computer. The system is simple, practical, and suitable for any owl speeddata logging.
Peng Yanbin , Yao Shenchong , Yang Zhiang , Liu Jianhua , Deng Yuelian , Xu Xuejie Department of Environment Engineering Xi an Power , Capacitor Factory
Abstract:In this paper, we discuss the traetment of harmful industrialrefuse containing some insulating oil (IPB and PXE) arised in power and ca-pacitor factory by incinerating. A mechanical incinerator with some featureswas designed and made. The most suitable co
Tan Bangben , Liu Guisheng Institute of Applied Mechanics
Abstract:In this paper, the geometric nonlinear free vibration problemof the laminated plate with ribs is solved by the energy method and theharmonic balance principle. The discretization is carried by using theapproximate analytical solution with multiplemode to