bluuebunny/crossref_metadata_2025_split huggingface dataset:
Standardized Application and Management of a New Type of Equipment Support Resources
Authors: Wang Sen , Ruan Yongjun , Huang Xinxin 
Published: October 2019

AbstractAs a new type of equipment support resource, metal rubber plays an irreplaceable role in buffer damping. This paper mainly introduces the research status of metal rubber materials, and discusses the preparation process, theoretical research and performance characteristics of metal rubber. The preparation standard and management system of metal rubber products are put forward. The proposed system not only reduces the cost of equipment support resource management and production, but also has certain reference for the design, improvement and practical application of metal rubber products.
Research of diamond concentration in dicing blade effect by electroplating parameter
Authors: Zhu Xiaowei , Wang Yongbao , Liu Jianshuang , Wang Zhan , Dong Feng 
Published: October 2019

Abstract
In order to study the effect factors of diamond concentration in Dicing Blade prepared by composite coating method, a uniform distribution diamond composite coatings was prepared by suspension and high-low speed interval agitation method on the aluminium alloy blade hub. The effects of suspension diamond content, stirring speed, current density, surface tension and solution temperature to diamond concentration in composite coatings were studied. And the result shows the concentration of diamond in the coating is proportional to the suspending content in electroplating solution, the suspending diamond content increases, and the concentration of diamond in the coating increases until reaching a saturation value. The diamond concentration of coatings is inversely proportional to the stirring speed of sand, and obtained maximum concentrations when current density is 2.0 A/dm2 and temperature is 50°C. The surface tension has little effect to the concentration of diamond in the coating layer.
Research on green design framework and support system of metal cutting machine
Authors: Wang Xingrong , Yan Chunping , Huang Wei , Xu Jianping 
Published: October 2019

Abstract
In order to improve the green design level of metal cutting machine tools, the framework and implementation methods for enhancing the green performance of machine tool’s design process were studied. Analysing the environmental impact of design process, studying the green key points in the design process of materials, structures, hydraulics, lubrication and cooling, a green design framework for the metal cutting machine was established. Centering on the machine tool design process; Researching on the machine tool design support technology and implementation tools, a basic support system for green design of metal cutting machine that integrates technical support layer, interaction layer, tool support layer, technical support layer and user service layer was established. The green design support system for gear making machine was developed and applied to verify the guiding role of green framework and support system in the green design process of metal cutting machine tool.
Recycling quality evaluation of hydraulic cylinder based on residual strength analysis
Authors: Wang Guangcun , Chen Shangong , He Bing , Guo Yi 
Published: October 2019

Abstract
Remanufacturing is an effective way to achieve circular economy and sustainable development. Hydraulic cylinder is one of the most important executive parts of construction machinery, which has high quality, high precision and high economic value. In order to evaluate the recycling quality of hydraulic cylinder under unknown load history conditions, a remanufacturability evaluation method based on residual strength and residual life analysis was presented in this paper. Design strength, surface quality, mechanical properties including hardness, stiffness and natural frequency of hydraulic cylinder were taken into account in this model. Based on the strength characteristics change rules of hydraulic cylinder in the fatigue process, a reasonable critical threshold for remanufacturing was given. The results showed that, this model provided an intuitive way to learn about the residual strength and residual life of parts, which has a high application potential.
Prediction of processing time and energy consumption and optimization of machining parameters in gear hobbing
Authors: Huang Wei , Yan Chunping , Sun Xiao , Huang Feihu , Wang Xingrong 
Published: October 2019

Abstract
This paper studied the characteristics of time and energy consumption of gear hobbing in batch production of small modulus gear. A method of integrating design of experiment, response surface method and multi-objective salp swarm algorithm (DOE/RSM/MMSA) is proposed for the complex optimization of machining parameters (namely hob rotation speed, cutting feed and depth of cut) in gear hobbing process. This paper uses three-level factorial design method to design gear hobbing experiments, and carries out mathematical and statistical analysis on the experimental results. It is found that cutting feed is the most significant machining parameter followed by hob rotation speed and depth of cut to reduce processing time and energy consumption. The prediction model of processing time and energy consumption in gear hobbing process is obtained through response surface methodology. The relative error rates of the predicted value and the actual value of the processing time and energy consumption are 0.11% and 0.09% respectively, indicating the validity of the model. Multi-objective salp swarm algorithm is used to optimize the machining parameters to minimizing processing time and energy consumption. Finally, through the comparison with the existing research results, it is concluded that the optimized machining parameters have better processing effect to achieve minimized processing time and energy consumption, which shows the effectiveness and rationality of the method proposed, and provides references for the decision-making of machining parameters in workshop.
Research on Diversity Characteristics of Mimic Defense Gateway Business Environment
Authors: Yu Jun , Zhu Guangxin , Wang Lin , Xu Mingjie , Chene Haiyang 
Published: October 2019

Abstract
This paper introduces the security problem of SDN gateway based on software-defined network, compares the mimicry security controller model of dynamic heterogeneous redundancy, the mimicry network scheduling and security mechanism, and the advantages and disadvantages of ontology-based network mimic defense system security modeling, and introduced the future research work.
A Categorical Perceptual Study on Mandarin Tones by native Dai language speakers in Dehong Autonomous Prefecture
Authors: Lu Yao , Kong Jiangping 
Published: October 2019

Abstract
This paper is intended to investigate how the Dai Dialect speakers in Dehong Autonomous Prefecture perceive Mandarin tones. Therefore, identification and discrimination experiments were conducted of the four Mandarin tone continua with Dai Language speakers. The results suggested that the Dai Language speaker’s perception mode of T1-T2 and T2-T4 continua are Categorical Perception, but for T1-T3, T2-T3, T3-T4 and T1-T4 continua are not. These findings indicated that Dai language tone system does have a significant influence on participants’ perception of Mandarin tones.
Extrusion Forming Process and Microstructure of Mg-3Al-1Zn Alloy
Authors: Qian Fang , Sun Qi 
Published: October 2019

Abstract
In this paper, extrusion treatment of Mg-3Al-1Zn alloy treated with casting and homogenizing was carried out, the effects of extrusion temperature and extrusion ratio on the strength and ductility of the alloy were investigated, and the action mechanism was discussed. The results show that both before extrusion or after, the tensile strength of Mg-3Al-1Zn alloy after the treatment are reduced to some extent, while the elongation increases significantly. At the same extrusion ratio, when the extrusion temperature rises from 250°C to 450°C, the tensile strength of cast alloy is higher than that of uniform state. At lower temperature and larger extrusion ratio, Mg-3Al-1Zn alloy has better plasticity. With the increase of extrusion ratio, the tensile strength and elongation of Mg-3Al-1Zn alloy show a rising trend.
Periodic Vibration and Bifurcation of Vibratory Systems with Clearance Composed of Rigid Constraints
Authors: Shi Yuqing 
Published: October 2019

Abstract
A periodically-forced vibratory system with clearance composed of bilateral symmetric rigid constraints is considered. Distribution characteristics and bifurcation boundaries of various periodic-impact vibraitons of the vibratory system are analyzed and specified. The transition process between neighbouring fundamental impact vibrations is discussed. The induced mechanism of the two kinds of transition domains, such as hysteresis and tongue-shaped domains, and a series of singularities are revealed. Analysis results show that on the basis of the initial conditions of the system vibration or the change of excitation frequency or clearance, neighbouring fundamental impact vibrations can coexist in the hysteresis domain. Meanwhile, there exists a series of sub-harmonic impact vibrations in the tongue-shaped domain. These multi-period and multi-impact vibrations usually undergo period doubling or grazing bifurcation along with the change of excitation frequency or clearance.
Dynamic Characteristic Analysis on the Rod Fastening Rotor Bearing System
Authors: Li Yiping 
Published: October 2019

Abstract
Modern large-scale gas turbine’s rotor is the main form rod fastening rotor. The contact friction between wheels, the pre-tightening force of the rod and bearing system have an effect on rotor dynamics. According to the structure characteristics of rod fastening rotor, contacting model is established. In the rotor modal, contacting friction, the pre-tightening force of rod and bearing system is included to get natural frequency and the mode. Through the analysis of rotor, with increasing the pre-tightening force, the overall stiffness and natural frequency has increased. The natural frequency is increase fast when the pre-tightening force is small. With the increase of the pre-tightening force, speed of the natural frequency is slow. Bearing system with changes in speed, its oil film dynamic coefficients varieties also have some impact on the inherent characteristics of the rotor.
Economic Evaluation of Thermal Insulation Materials in the Whole Life Cycle of Enclosure Structure
Authors: Zhang Wencui , kakar Aimal khan , Yan Jingru , muhammad Ali 
Published: October 2019

Abstract
The thermal performance of building envelope represents a key factor to increase the energy efficiency of the construction sector and to reduce greenhouse gases emissions. This paper provide a calculation of heat losses through building envelope by using two different insulation materials (conventional and energy saving) based on the life cycle economic evaluation theory, the life cycle economic evaluation model of building envelope is established as well as calculates the life-cycle cost after using energy-saving materials on the building enclosure through analyzing the actual project. It is concluded that the application of energy-saving materials in building envelope for a span of 50years can save 910, 0000¥, which cannot only reduce the building energy consumption, but also reduces building life-cycle cost.
Design of double intelligent parking garage based on HuiYu technology
Authors: Liu Ming , Yang Qiulong , Wen Fudi , Wang Ye , Wu Mengjiang 
Published: October 2019

Abstract
In view of the ubiquitous parking problem in the city, a double-layer intelligent parking garage that saves space, is smart and labor-saving. On the basis of the existing parking garage, the first problem to be solved is how to effectively use the transitional parking space in the three-dimensional garage (mainly refers to the parking space that the vehicle cannot be occupied by the upper vehicle after parking). In order to solve the above problems, this paper designed a double-deck parking garage to solve this problem. Mainly by the left and right lateral movement and vertical movement of the lower parking space. All parking spaces are free to move up and down to ensure that the lower parking space can be fully loaded without affecting the upper parking vehicle. Based on Huiyu’s innovative technology, a double-layer intelligent parking garage was designed. The Huiyu model is used to complete the mechanical system design and production of physical models. The man-machine operation panel is compiled with ROBO PRO software. With button-type access, it has the function of non-slip and stable operation. At the same time, the optimal path algorithm saves time. The double-decker smart parking garage is safe, small, efficient and intelligent. It can park and pick up the car with a key. The double-deck parking garage achieves maximum use of space and is both reliable and economical. The double-deck intelligent parking garage is designed to meet the desired sporting requirements, removing the upper vehicle while ensuring that the vehicle’s bottom layer does not move. At the same time, the optimal path algorithm makes it a powerful guarantee for fast access to vehicles. The double-layer intelligent parking garage designed and built has met the design requirements. Further improvement is to transform from Huiyu model to actual product, and it is necessary to solve the problem of parking garage bearing.
Dynamic Characteristics Analysis of the Rigid Flexible Coupling Multi-body System of Wharf-cable-dynamic Positioning Vessel
Authors: Zhang Dapeng , Bai Yong , Zhu Keqiang , Liu Jian 
Published: October 2019

Abstract
In order to study the coupling effect of the rigid-flexible multi-body system composed of the dynamic positioning vessel, the wharf and mooring cables in mooring state, the lumped mass method was applied to discretize the mooring cables into lumped mass models for the calculation of the mooring tension of the mooring system, the nonlinear reaction force of dock fenders was simulated by Link unit in Orca Flex, and the thrust allocation of thrusters was based on PID control system. The full coupling dynamic time-frequency characteristics of the multi-body system has been analysed. The results show that the performance of the side thruster and vessel’s positioning capability can be improved effectively when the target position is selected reasonably.
The influence of different factors on acoustic emission signal in the process of monitoring steel corrosion
Authors: Shi Fengjiao , Wang Junzeng , Cui Wensheng , Qin Lei 
Published: October 2019

Abstract
Corrosion of steel reinforcement is one of the reasons affecting the durability of building structures. In this paper, acoustic emission technology is used to monitor the corrosion of steel reinforcement. The two influencing factors of concrete strength and water-cement ratio were compared and analyzed, and the influence of different factors on monitoring acoustic emission signal was summarized.
Modeling and Simulation of Conversion Booster Cylinder Control System
Authors: Yang Junbin , Zhou Minglian 
Published: October 2019

Abstract
This paper is based on the accelerated fatigue test of aviation hydraulic actuators. For the case where aviation hydraulic actuators transmission medium is different from the testing rig transmission medium, a new type of conversion booster cylinder is designed. This conversion booster cylinder set pressurization, medium conversion, pumping aviation oil as one, and laid the foundation for the pressure pulse fatigue test of aviation hydraulic actuator cylinders. Combined with the principle of valve-controlled asymmetric cylinder, a mathematical model of the control system of the pressurized cylinder was established using the method of parameter weighted averaging to unify the models in both directions. Simulink software is used to simulate the system, and the required time domain and frequency domain performance indexes are obtained. The working condition of confining pressure is simulated and the effectiveness of the design of the conversion booster cylinder is proved.
Effect of interlayer material on microstructure and mechanical properties of diffusion brazd IC10 superalloy
Authors: Li Qi , Liu Fengmei , Yue Xiong , Xiong Ming , Qin Hongbo 
Published: October 2019

Abstract
The diffusion brazd test of IC10 superalloy was carried out by using Russia solder M3 interlayer powder. The wetting quality of the high-temperature alloy was evaluated by the contact angle of wetting at various temperatures. The mechanical properties of the joints were determined at operating temperatures. The result shows that at the temperature of 1250°C, the contact angles of interlayer powder M3 alloy do not exceed 4∼5°, it has high wettability and spread ability over the surface of the IC10 alloy. The average test time before failure at the temperature of 900° and the stress of 320 MPa was 38 hours, and at the stress of 350 MPa was 9.6 hours, all both higher than 80% of the base material under the same experimental conditions. The structure of the joints has a smooth transition from the base metal to the soldered joint. In the structure of the joint, the γ’- phase with a large volume concentration in the base metal. IC10 superalloy has excellent high temperature properties when the M3 interlayer was used.
Research on design method of time-varying uncertainty of bolted connections
Authors: Zhao Yongsheng , Fu Huirong , Wang Lixia , Wu Hongchao , Li Shunlei 
Published: October 2019

Abstract
For the change of uncertainty caused by the influence of time on the bolt connection during use, this paper is based on a time-varying uncertainty design method for several parameters that change with time. The method consists of stochastic differential equations. The bolt-on time-varying design combines mathematical models of the distribution parameters of multivariate random variables. The design method of bolting connection with uncertainties of various influencing factors with time is proposed, and the time-varying design of tightly connected bolts subjected to axial working load is taken as an example. The method considers the dynamic changes of the stress and the allowable stress of the bolted joint, so that the safety of the bolted product is more accurately evaluated for dynamic reliability. Through this method, combined with the set initial values of the parameters and the historical data obtained by the test, the reliability of a certain time can be calculated. The design of the example uses Matlab to simulate the data, and the reliability of the specified time is obtained, which is the test of the bolting result. And assessment provides an important reference.
Simulation analysis of control system for six degrees of freedom damping platform based on MATLAB
Authors: Su Zhaobin , Li Wenjin , Xie Wenbin 
Published: October 2019

Abstract
On the basis of relevant mathematical theory inference and the observability analysis of sensor arrangement and the controllability analysis of actuator arrangement, the simplified model of the six-degree-of-freedom air spring active vibration isolation system is established. Considering the structure of the air spring damping platform and the environment interference around the vibration isolation platform, we use the simulation software named MATLAB to establish three control models: PID control, Fuzzy control and Fuzzy PID control. The simulation analysis results show that the Fuzzy PID control consequent is obviously benefit to the damping platform, in addition, the composite feedback can also greatly promote the control consequent.
The design of marine hydraulic oil detection and purification system
Authors: Sang Yijian , Zhu Faxin , Wang Weijun , Peng Xuegao , Li Yvle , Luan Jin , Ma Yonggang 
Published: October 2019

Abstract
In this text, hydraulic oil is the research object. Aimed at improving the problems and shortcomings of present hydraulic oil detection and purification. By looking up for relevant information, and used Auto CAD to design working principle and main components. Finally, arguments the feasibility of the hydraulic oil detection and purification system from the aspects of technology, structure, operation and economy. The results show the system realizes the integration of hydraulic oil detection and purification, simplifies the operating steps, saves manpower and materials, and avoids the secondary pollution of hydraulic oil.
Design of a special tool for dismantling and fitting of the lead sleeve in marine fuel injection pump
Authors: Ma Yonggang , Fang Suyi , Zhu Faxin , Peng Xuegao , Ji Shilin , Huang Jinjie , Luan Jin , Wei Hu 
Published: October 2019

Abstract
The existing dismantling and fitting tool of the lead sleeve in fuel injection pump in the laboratory is taken as the research object, aiming at its shortcomings or problems like the limited scope of application, the laborious operation, the hidden danger of personnel injury and so on. Starting from the design requirements of the special tool for the dismantling and fitting of the lead sleeve in the marine fuel injection pump, a special tool for disassembling and assembling of the lead sleeve of the injection pump is designed by using the graphic design software AutoCAD2014, and the working principle and the main components of the tool are introduced. Finally, from the aspects of technique, operation, maintenance, economy and so on, the feasibility of the special tool for the dismantling and fitting of the lead sleeve in the fuel injection pump was taken analyzed.
Research on simple test and adjustment method of vehicle comfort
Authors: Wang Junfeng , He Liyuan , Yang Chenghui 
Published: October 2019

Abstract
This paper analyzes an application in the field of automobile manufacturing, and makes a more in-depth study on the test and control methods of vehicle comfort, focusing on the mechanical movement of the vehicle in the vertical direction and the pitching motion around the horizontal axis. Analyze and adjust the comfort of the vehicle through an adaptive adjustment system.
A Visual Detection and Location Method for Soft Fabrics
Authors: Gao Qiang , Li Zhen , Pan Jun 
Published: October 2019

Abstract
The soft fabric is prone to burr, fold, enfold and blur, which poses a great challenge to the accuracy of visual edge detection and localization of the autonomous loading and unloading material system of garment robot. In order to overcome the above problems, it proposes an adaptive edge localization method based on double filtering in this paper, which can be used to guide the garment robot to achieve grasping of soft fabric automatically. Firstly, the Gauss filtering and morphological filtering are used to smooth the image, and then it calculates the canny adaptive threshold based on the edge gradient information and detect the edge, finally it locates the coordinates of edge feature extracted. The experiment results show that the method is effective accuracy greater than 96%and robust tested on the real data sets composed of soft fabric. The method has good application value for the autonomous loading and unloading operation of the garment robot and has positive significance for the construction of the intelligent garment factory.