bluuebunny/crossref_metadata_2025_split huggingface dataset:
Research on Design of Multimedia Platform Based on Digital Campus
Authors: Wang Zhenyu , Huang Zichang , Sun Hao , Li Yongzhi , Lyu Jianhua 
Published: March 2020

Abstract
This research is designed for the future campus multimedia platform design, starting from the existing multimedia platform situation and the problems in daily teaching life, such as: multimedia platform materials are mostly made of alloy and heavy materials; the multimedia platform is inflexible, mostly square and single in form. The use of partitions is not clear enough, or the partitions do not conform to the usage habits, and chalk mouse boards are often rubbed together. The control panel buttons are scattered, inconvenient to operate and difficult to open under unfamiliar conditions. Observe users’ usage habits and make suggestions and investigations on users and surrounding personnel, and record the problems. After listing the problems, carefully analyze, select the most suitable one, analyze from the angle of man-machine design, and then proceed to design the solution. In the early research stage of this topic, the necessity of redefining the design of the campus multimedia platform was demonstrated. Through the analysis and positioning of the crowd, the analysis of the use environment and the use habits, problems were found. After analysis and synthesis, different sketch plans were put forward, and finally my own design plan was determined. According to the analysis of the existing multimedia platform, aiming at the problems of unclear division of the existing multimedia platform and the frequent mixing of chalk and the like, a future campus multimedia platform is redefined and designed. This multimedia platform is mainly based on the human-computer relationship. The main idea of the design is to try to be concise and easy to operate without affecting the work needs.
Quantification of graphene materials in fibers
Authors: Li Weidong , Wang Yingjie , Mao Zhiping 
Published: March 2020

Abstract
A method for quantitative determination of graphene materials in fibers by high temperature pyrolysis - element analysis is reported. This method takes advantage of the difference between the thermal stability of fiber and graphene itself to design the corresponding temperature gradient. Firstly, the fiber matrix is removed, and then the carbon element content ratio is measured by element analyzer. This method eliminates the influence of other impurities in the fiber. The experiment is reliable, simple to operate and the relative deviation conforms to the standard range, which is of great significance for quantitative analysis of the content of graphene materials in the fiber.
Simulation and Experiment of Stainless Steel - Carbon Steel Cladding Rebar Rolling
Authors: Wu Shen , Tan Jianping , Li Zhen , Xiang Yong 
Published: March 2020

Abstract
In this paper, ABAQUS is used to simulate the rolling process of stainless steel (304)-carbon steel (20MnSiV) clad rebar, and the metal flow law is analyzed. It was found that the K1 pass type has a great influence on the stress and strain distribution of the clad steel. The thickness of the stainless steel wall is thinned at the roots of the transverse and longitudinal ribs, and the thickness of the front end of the transverse rib root is thinner than the rear end along the rolling direction. The clad rebar rolling experiment was carried out to verify the simulation results.Then, the steel bars were subjected to tensile and bending tests, and the results showed that they have good mechanical properties. And the metallographic observation of the bonding layer proves that a good metallurgical bond between the two metals is achieved.
Analysis of load variation of two-pipe climbing robot under three gait conditions
Authors: Yi Weifeng , Tan Jianping 
Published: March 2020

Abstract
This paper presents a double-piped climbing robot, which is designed for the detection and maintenance of boiler pipes in coal-fired power plants. It studies the three gaits of climbing robots: crawl, reversal and torsion. This research has established a virtual prototype of the climbing robot. By using the simulation software, ADAMS, we analyze the clamping force of the robot’s mechanical arm, and also the changing conditions of the key motor’s torque during the climbing process. analysis the robot in the quality of external load change influence on robot driving moment, the result can be extended as a robot uses, optimize the robot structure as the basis, to ensure the stability and security of climbing performance.
Research on the Linkage Mechanism of Multi-Time Scale Electricity Market in Northern Hebei
Authors: Wei Zhongkang , Zhu Tianbo , Ning Bo , Zhong Xinrui , Zhang Tianyu 
Published: March 2020

Abstract
With the rapid marketization of the electric sector, transferring to market-oriented system from managed-based system is of utmost importance. As spot market constructing recognized as a necessity for electric reformation, Northern Hebei is treating the linkage mechanism seriously. Focusing on the spatial and temporal linkage mechanism for energy trading, this paper aims to discuss reasonable options for Northern Hebei when it’s introducing the spot market. The relationship between energy market and ancillary market, particularly in the spot market, is also discussed to better shape a comprehensive framework for the entire electric market. Some discussions on the specific electric commodity categories are demonstrated as well to help Northern Hebei look into the future and take strategies accordingly as the market develop and the government giving more guidance on the market construction.
Working Mechanism and Numerical Simulation of a Novel 6-DOF Robotic Crusher
Authors: Li Guoguang , Shi Boqiang , Liu Ruiyue , Gu Jie 
Published: March 2020

Abstract
Based on the inter-particle breakage theory and characteristics of oscillating motion, a novel 6-DOF robotic crusher is proposed which combines the chamber structure of the cone crusher with the high flexibility of the parallel robot. According to the method of analytical geometry, equations of the inverse and forward models are deduced. Then, considering the periodicity of eccentric rotation, the trajectory model of the oscillating motion is established by using an eccentric simulation. Based on the derived model, the motion variation of the actuators can be solved by ADAMS. Finally, the liner wear of the concave is deduced by a numerical example which can provide a theoretical foundation for the development of the intelligent crusher.
The Research of Embedded Remote Monitoring System Based on B/S Framework
Authors: Cheng Xiaoyan , Dang Guoqing 
Published: March 2020

Abstract
With the continuous development of industrial automation, the requirement of monitoring system in industrial field is higher and higher. Various advanced computer technology, sensing technology and communication technology are more and more appearing in industrial field. Touch screen or computer are usually used to realize the visual monitoring of industrial production line. This monitoring system based on C/S mode is widely used. With its advantages, the monitoring system based on B/S mode is gradually applied to smart home, telemedicine, agriculture, power system and other occasions. The monitoring system based on B/S mode has more advantages in structure and application than C/S mode. How to further expand the application of B/S mode monitoring system is the key to upgrade and replace the current industrial monitoring system. The industrial Web monitoring system based on ARM proposed in this paper can improve the current monitoring system having practical significance both economically and technically.
Design and Application of High Stubble Rice Harvester
Authors: Zhuang Xiaobo , Li Yaoming 
Published: March 2020

Abstract
In recent years, the state has adopted the policy of returning straw to farmland in rural areas to further reduce environmental pollution. Based on the demand of straw returning to the field, the original header design can not meet the needs of high stubble, the spring teeth will dial the ear head, resulting in greater waste. This paper studies and analyzes the current situation and characteristics of combine harvester, focusing on the loss of header and the structure and principle of reel. Determine the overall design scheme suitable for combine reel, provide an optimal value in the ratio of reel speed, study the optimal reel radius, and provide help for the design of reel in the future.
Study of the effect of differentiated cooling modes on the structure and mechanical properties of gray cast iron
Authors: Gabelchenko N I , Kidalov N A , Belov A A , Savchenko A I , Grigoreva N V 
Published: March 2020

Abstract
The effect of the differential cooling regime on the structure and mechanical properties of gray iron castings is investigated. A technical solution has been developed for the differentiated change in the cooling rate of cast iron castings. An increase in the cooling rate during dendritic crystallization was achieved by blowing the mold with compressed air. To slow down the cooling rate in the interval of eutectic transformation, an exothermic carbon-containing additive, fuel oil M-100, was used. It is shown that the use of controlled cooling can significantly increase the tensile strength of cast iron without introducing additional alloying elements into the composition of cast iron.
Weight efficiency analysis of a ship carbon shaft manufactured by winding with various winding angles in layers
Authors: Yu Duradzhi V 
Published: March 2020

Abstract
The task of the optimal winding parameters selection for the ship composite intermediate shaft has been formulated and the solution algorithm has been considered. A method for the shaft mechanical characteristics estimation on the base of the layer-by-layer method has been proposed. The shaft weight efficiency analysis for the various winding angles in the winding program has been carried out.
Fatigue crack development experimental simulation in a railway structures steel under working load
Authors: Lebedinsky S G , Moskvitin G V , Pugachev M S 
Published: March 2020

Abstract
The fatigue crack development regularities under working load simulation have been studied. The fatigue crack development pre-threshold region has been investigated. The level decrease method of irregular working load with similarity preservation has been applied. This is achieved with the test sample suppleness increase by a crack extension in it. Experimental dependences of the crack development rate on the number of working load blocks at its level decrease have been obtained.
Structural analysis of assemblies using non-conformal spectral element method
Authors: Vershinin A V , Levin V A , Kukushkin A V , Konovalov D A 
Published: March 2020

AbstractAn approach to the numerical simulation of a contact interaction between the deformable solids inside the assembly is considered in the article. A standard approach for solving such kind of problems is to imprint the boundaries and merge the solids along the common boundary zones. However this approach requires conformal discretization of the whole assembly including conformal meshes on the common boundary regions during the numerical simulation, which often causes significant problems for the industrial assemblies consisting of a large number of parts of different sizes. Test examples are considered for the verification of the developed in CAE Fidesys (www.cae-fidesys.com) algorithm of tying elastic solids by comparing simulation results with the solutions of similar problems for the case of merged solids with a conformal mesh discretization: static and modal analysis of the assemblies consisting of cubic, cylindrical and spherical bodies. A robustness of the algorithm and a continuity of the obtained solution are analyzed in case of gaps/overlaps between contacting solids. It is shown that small gaps and overlaps in CAD-model of an assembly do not influence much a correctness of numerical results and these cases are correctly and automatically processed in CAE Fidesys software module based on the described algorithm.
Evolution of disturbances that propagate in viscoelastic metamaterial
Authors: Kolesov D A , Erofeev V I , Krupenin V L , Malkhanov A O 
Published: March 2020

Abstract
We study the features of the propagation of a longitudinal wave in an acoustic (mechanical) metamaterial modeled as a one-dimensional chain containing the same masses connected by elastic elements (springs) having the same stiffness, each mass containing a series connection of another mass and a viscous element (damper). It is shown that the model under consideration allows us to describe the dispersion and frequency-dependent attenuation of a longitudinal wave, the nature of which substantially depends on the ratio of the external and internal masses of the metamaterial.
On the issue of energy consumption of vibration technological machines
Authors: Lyan I P , Panovko G Y , Shokhin A E 
Published: March 2020

Abstract
The article provides a comparative analysis of the energy consumption required for the implementation of the resonant and beyond-resonant modes of vibrating technological machines working body’s oscillations. An algorithm for selecting parameters of an electric drive based on an asynchronous electric engine to provide the specified amplitude and frequency of the working body oscillations for both modes of vibration is presented, taking into account frequency regulation, losses arising in the elastic suspension of the machine and in bearings of engine, the occurrence of reactive power and changes in the energy conversion efficiency.
Blood flow modeling with a finite element living heart model in the FlowVision software complex
Authors: Ovsyannikova E E , Kashirin V S 
Published: March 2020

Abstract
The paper presents the living heart finite element model, which can be used for heart beating simulation. The simulation of a human heartbeat is introduced in two settings – with artificial valves and tissue valves. The properties of tissue valves are similar to natural ones. The modelling was held using the FSI technology - fluid structure interaction – two-way coupling of the finite element model of the heart and the blood flow inside it. The finite element model of the heart was created as part of the Living Heart Project (the project of Simulia Dassault company).
Blood flow modeling with a gemo-library in the FlowVision software complex
Authors: Ovsyannikova E E , Silaev D P , Kashirin V S 
Published: March 2020

Abstract
The work deals with a hemodynamic library - an additional module for the FlowVision hydro-gasdynamic software package, which allows to set physical boundary conditions for projects related to modeling of the heart and blood vessels. The principle of the library is based on an electromechanical analogy.
Motion specification algorithms for both platform and arms of a mobile robot for planetary research
Authors: Nanyageev I , Shardyko I , Dalyaev I 
Published: March 2020

Abstract
This article describes some aspects of the control system design for a four-wheel mobile platform with individual wheel-steering equipped with two redundant robotic arms. The considered control issues include different ways of platform maneuvering as well as a solution of inverse kinematics problem for a redundant arm with an original approach to redundancy resolution depending on operator’s intention.
Investigation of the configuration of a parallel manipulator for additive manufacturing of solid structures
Authors: Zelensky A. , Dubovskov V. , Kuptsov V. 
Published: March 2020

Abstract
The last decade has seen an increase in publications on mechatronic systems of parallel structure with flexible connections. Such manipulators are used in the field of videography of sports events and in crane structures for special purposes. The paper proposes and studies the question of the use of a parallel structure manipulator with flexible connections to create a complex of additive manufacturing of building structures. The basic structural schemes of kinematics of cable parallel manipulators are considered. The solutions of direct and inverse kinematics problems of parallel structures suitable for building additive systems are considered. The developed mathematical model of the kinematics of cable manipulators makes it possible to conduct further research on the implementation of the control system in real-time mode.
Control of vehicles and robots: creation of planning systems in the state space (MIPRA)
Authors: Aladin D V , Varlamov O O , Chuvikov D A , Adamova L E , Fedoseev D A 
Published: March 2020

Abstract
To control machines and robots, in addition to the well-known reflex level control systems, it is proposed to use logical level decision-making systems that are created on the basis of mivar expert systems. It is shown that the use of mivar expert systems makes it possible to solve problems of automatic planning of actions of robots in the state space. These tasks relate to STRIPS planning. The results of the study of the Mivar-based Intelligent Planner of Robot Actions (MIPRA) project have dramatically reduced the computing infrastructure requirements from servers to conventional computers and the time it takes to plan tasks for robot activities from weeks to seconds. Similar results after creating special knowledge bases can be obtained for groups of robots, multi-level heterogeneous robotic systems and cyber-physical systems of various bases and purposes, which is an important section in the control of machines and robots. Solving automatic planning tasks makes it possible to quickly develop driver assistance systems and move on to creating a fully autonomous smart car.
Problems of modeling the impact of a car on a road barrier by the finite element method
Authors: Demiyanushko I V , Mikheev P S , Karpov I A 
Published: March 2020

Abstract
Drivers safety is a high-priority task for engineers. One way to ensure this is to increase vehicles passive safety. Another way to improve road safety is to improve road fences design. This article is concerned with the issues of finite element (FE) modeling a vehicle collision with road fences using the LS-DYNA software package. The article presents a number of problems for modeling a vehicle with an oblique impact in a road fence, in particular, the friction issues between the vehicle tires and the road, the car friction elements and the road fence, problems of describing large deformations and fracture of parts with large FEM meshes and interactions with elements in a small overlap area.
Designing architecture of an artificial neural network for classification using robotic complexes
Authors: Kononenko K M , Demidov D G , Vinokur A I , Krupenin V L 
Published: March 2020

Abstract
This article describes the basic principles of constructing artificial neural networks for pattern recognition on raster images using robotic complexes. The basic parts of convolutional neural networks are considered. Examples of evaluating the accuracy of preliminary testing results developed by the authors of a convolutional neural network model are given.
Temperature aging effects on mechanical behavior of structural GFRP on interlaminar shear tests
Authors: Lobanov D S , Zubova E M 
Published: March 2020

Abstract
Aging of polymer composites is a wide-spread problem, which causes deterioration of mechanical properties, shorter design service life of structures and their potential early destruction. The work presents the results of experimental researches, within which the impact of elevated temperatures on mechanical properties of airborne constructional fiberglass were investigated. Research results were obtained, which describe the impact of the preliminary temperature aging (in different modes) on mechanical properties, behavior and execution of different composite destruction mechanisms during interlaminar shear testing. Experimental data were obtained, which describe the temperature impact on the mechanical behavior of constructional fiberglass samples at interlaminar shear. Regularities of fiberglass properties changing after temperature aging at interlaminar shear were analyzed, based on the joint use of testing systems and an acoustic emission (AE) signals recording system. Dependences of AE signal energy parameters on the time, combined with diagrams of fiberglass samples loading were obtained. Results of the distribution of specific frequency bands obtained after the destruction of samples with different preliminary aging modes, are graphically represented.
Nonlinear dynamics of closed cylindrical shells under the action of longitudinal and transversal loads
Authors: Saltykova O A , Yu Krylova E , Krysko V A 
Published: March 2020

Abstract
The nonlinear dynamics of a closed cylindrical shell, described by the kinematic model of the first approximation (Kirchhoff-Love) under the action of external alternating longitudinal and transverse loads, is studied. Geometric nonlinearity is described by the T. von Karman model. The resulting system of nonlinear partial differential equations is reduced to an ODE system using the Bubnov-Galerkin method in higher approximations, the Cauchy problem is solved by the 4th and 6th orders of accuracy with the Runge-Kutta method. Numerical results are compared with experimental data for longitudinal loads obtained by Zippo A., Barbieri M., Pellicano F. A qualitative agreement of the results is shown.
Experimental study of macroscopic localization of plastic flow in al-mg alloy under complicated stress-strain state
Authors: Tretyakova T V , Mugatarov A I , Feklistova E V 
Published: March 2020

Abstract
The main objective of this work is to investigate the spatial-time inhomogeneity due to the jerky flow during plastic deformation of Al-Mg alloy under complex stress conditions. The use of specimens in the form of plates with a rigid circular rim and a reverse curvature rim was considered. Experimental data on the evolution of inhomogeneous strain and temperature fields have been obtained, illustrating the processes of initiation and propagation of deformation bands of the localized plastic flow by using the digital image correlation and infrared thermography.
Research of the carbon/epoxy laminated curved beams strength in four-point bending test
Authors: Zubova E M , Lobanov D S , Strungar E M , Temerova M S 
Published: March 2020

Abstract
The experimental study results of the of the carbon/epoxy laminated curved beams strength of samples based on laminated carbon fiber and laminated carbon fiber reinforced in the transverse direction by Tufting firmware with four-point bending are presented. We obtained loading diagrams and diagrams of the dependence of the cumulative energy values of acoustic emission signals for layered samples and layered samples reinforced with transverse piercing. The tests were carried out according to the procedure agreed upon with the international standard ASTM D6415 with using the electromechanical system Instron 5965 and the acoustic emission signal recording system AMSY-6.