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Showing papers in "Journal of Inner Mongolia University of Science and Technology in 2009"


Journal Article
TL;DR: Basic skills used in competition, such as algorithms of intercepting the ball, algorithms of possessing theBall, dribbling algorithms, and decision-making of cooperative multi-agents were amalysed and the relevant tactics were designed on RoboCup platform, and fulfilled the requirements of competition in RoboC cup.
Abstract: RoboCup(Robot World Cup)becomes a keen research focus in the intemational AI,robotics and related fields in recent years.Tactics of robot decide the level of its intelligence,and they are vital to win the game.Herein,several basic skills used in competition,such as algorithms of intercepting the ball,algorithms of possessing the ball,dribbling algorithms,and decision-making of cooperative multi-agents were amalysed.And the relevant tactics were designed on RoboCup platform.These tactics fulfilled the requirements of competition in RoboCup.Besides,the reliability of the tactics was fully proved through competition.When these tactics were used in sample soccer teams,the competing level of all the participating teams was raised,who then advanced to the final eight in our national competitions,qualified for "Robot World Cup" in USA.

3 citations


Journal Article
TL;DR: In this article, a dynamic simulation of precast reinforced concrete piles in the process of piling was carried out by using the format of explicit time integration based on the most advanced large-scale general finite element analysis software-explicit module in the ABAQUS.
Abstract: The dynamic simulation of precast reinforced concrete piles in the process of piling was carried out by using the format of explicit time integration based on the most advanced large-scale general finite element analysis software-explicit module in the ABAQUS.Effect of design parameters(the type of pile,pile diameter,length,shaft material,etc),piling machine parameters and technics(hammer weight,height,energy,pile pad,hammer pad,etc) on the piling process were studied,providing some guidance on project application.

2 citations


Journal Article
TL;DR: In this article, a model of wind turbine tower was established by using the SAP2000 finite element analysis software, and the modal analysis of some wind turbine set was carried outThe relationships between the tower natural frequencies and the wind wheel rotational frequency were studied under conditions that the turbine tower has doorways or not.
Abstract: The model of wind turbine tower was established by using the SAP2000 finite element analysis software,and the modal analysis of some wind turbine set was carried outThe relationships between the tower natural frequencies and the wind wheel rotational frequency were studied under conditions that the turbine tower has doorways or notSome foundational conclusions of the turbine tower was obtained by the discussion of the influencing factors of tower′s natural frequencyThe analytical results indicated that the doorways produce few influence on the tower′s natural frequency;there exists a decreasing linear relationship between the tower′s first-order natural frequency and the tower top quality;the tower′s low-order frequency plays a major role in determining whether to cause the tower and the wind wheel drive resonanceThis research may provide some reference for the design of wind turbine conical tube towers

2 citations


Journal Article
TL;DR: The method of traffic collection based on SOFTIRQ and memory mapping avoids the memory access in kernel state and shortens the path for transmiting a packet and saves much CPU overhead.
Abstract: The method of traffic collection based on SOFTIRQ and memory mapping was proposed in order to improve the performance of traffic collection.By realizing a user-defined protocol processing function for receiving all packets and using the technology of memory mapping,the user program can access the kernel packet directly.The method avoids the memory access in kernel state and shortens the path for transmiting a packet and saves much CPU overhead.The test results indicate that the traffic collection capability is largely improved.

1 citations


Journal Article
TL;DR: In this paper, the effect of different mold exterior part material on magnetic flux density in the aluminum melt and magnetic field interaction of four coils applied with same current were investigated with the aid of FE code ANSYS.
Abstract: With the aid of FE code ANSYS,the effect of different mould exterior part material on magnetic flux density in the aluminum melt and magnetic field interaction of four coils applied with same current were investigated.Calculated results show that magnetic flux density in the aluminum melt is greatly improved.For the four-ingot low frequency electromagnetic casting aluminum alloy,the optimal distance between two nearby coils should be more than 30 mm in the same coil current direction.

1 citations


Journal Article
TL;DR: The unified grid resource description based on RDF/XML solved the conformity problem between different grid resources, making grid resources share the unified comprehension among different grid systems, which may lay a theoretical foundation for the unification and discovery of grid resources.
Abstract: An unified grid resource description method through the research of RDF(Resource Description Framework) and the grid application was presented based on RDF meta-data descriptionThe hierarchy of grid resource was formed and the name space of resources different in qualitative was definedThe unified grid resource description based on RDF/XML solved the conformity problem between different grid resources,making grid resources share the unified comprehension among different grid systems,which may lay a theoretical foundation for the unification and discovery of grid resources

1 citations


Journal Article
TL;DR: In this paper, the microscopic structure and hardness of GCr18Mo steels were analyzed and compared under different heat treatment processes, and it was found that the hardness value of gCr18mo steels quenched at 930 ℃ and tempered at 180℃ is lower than gCr 18Mo steel quenching at 860 Ω and tempered by 220 ℩.
Abstract: The heat treatment of quenching,tempering and isothermal quenching process was used on GCr18Mo steel.Meanwhile,the microscopic structure and the hardness value of GCr18Mo steels were analyzed and compared under different heat treatment processes.It is found that the hardness value of GCr18Mo steels quenched at 930 ℃ and tempered at 180 ℃ is lower than GCr18Mo steels quenched at 860 ℃and tempered at 220 ℃.The microscopic structures in both heat treatment proesses are tempering martensite+carbide+residual austenite.Volume fraction of lower bainite increase gradually with the extension of isothermal time,whose structure pattern changes from acerose to hassock stack.The hardness value of GCr18Mo steels austenitized at 930 ℃ and isothermally quenched at 230 ℃ for 130 minutes are lower than GCr18Mo steels austenitized at 870 ℃ and isothermally quenched at 230 ℃ for 30 minutes.

1 citations


Journal Article
TL;DR: In this paper, the evolvement of microstructure and stress and strain after four-pass deformation was obtained, and the thermal simulation experiment curve was analyzed using the Gleeble-1500D heat simulator.
Abstract: 2Cr13 stainless steel containing tare earth Y was used for experiments,and thermal simulation experiment research was carried out by using the Gleeble-1500D heat simulator.Microstructures of the initial state and the thermal deformation were observed,and the thermal simulation experiment curve was analyzed.The evolvement of microstructure and stress and strain after four-pass deformation was obtained.

1 citations


Journal Article
TL;DR: In this article, an experimental research of concrete-filled square steel tube mid and long columns (CFSST) subjected to eccentric loading was presented and the primary parameters of the specimens are eccentricity ration, slendemess ratios and concrete strength.
Abstract: An experimental research of concrete-filled square steel tube mid and long columns(CFSST)subjected to eccentric loading was presentsedThe primary parameters of the specimens are eccentricity ration,slendemess ratios and concrete strengthThe results show that the eccentricity ratios and slenderness ratios are the primary factors in influencing the loading capacity of CFSST columns;the increment of load capacity reduced gradually with the increase of eccentricity ratios and slenderness ratiosThe effect of confinement force on enhancing the concrete strength as well as the ultimate load of CFSST columns will decrease with increaing the load eccentric ratioThe influence of concrete strength on the ultimate load will also decrease gradually with the increase of load eccentric ratio

1 citations


Journal Article
TL;DR: In this paper, the authors used the ANSYS 10.0 software available for two kinds of plane frames (one with foundation set with stone cushion and the other without stone cushion) to conduct seismic response simulation analysis.
Abstract: In order to verify the damping effects of the foundation with gravel layers on the upper building,ANSYS/LS-DYNA ecplicit integration procedures in the ANSYS 10.0 software available for two kinds of plane frames(one with foundation set with stone cushion and the other without stone cushion) were adopted to conduct seismic response simulation analysis.The thickness of the gravel cushion were taken as 1000 mm in the simulation process.The equivalent dynamic shear modulus was choosen,for the relative thickness of the entire gravel layer is very little.Simulation results show that under the effect of horizontal seismic waves,the largest positive displacement of the framework with the foundation of the stone cushion decreased by 56.08% comparied with the foundation without the stone cushion,while the largest decrease of negative displacement is 56.72%.Therefore,setting the foundation of gravel cushion helps to improve the seismic capacity of the upper part of the building to some extent.

1 citations


Journal Article
TL;DR: In this paper, a 60 mm thick heavy plate of 16MnR was welded by using straight polarity direct current automatic submerged-arc welding method with suitable welding parameters (electric current is 450 A;welding speed is 140 mm/min).
Abstract: The 60 mm thick heavy plate of 16MnR was welded by using straight polarity direct current automatic submerged-arc welding method with suitable welding parameters(electric current is 450 A;welding speed is 140 mm/min)The microstructures of the welded joint were observed and analyzed,and the surface microhardness of the welded joint was measuredThe results showed that good appearance and uniform structure were obtained at the welded joint region,and the maximum micro-hardness was found in the welded heat affected zone;the minimum micro-hardness was on the parent materialThe quality of the welded joint could meet the requirements in use