Influence Parameters Analysis of Forming Quality and System Dynamics Simulation of Vertical Steel Bar Benting

2013 ◽  
Vol 483 ◽  
pp. 280-284
Author(s):  
Xi Jian Zheng ◽  
Xin Zhuo Wang ◽  
Jin Meng Zhang ◽  
Yu Fei Zhu
Keyword(s):  
Simulation Analysis ◽  
Reference Value ◽  
Dynamics Simulation ◽  
Forming Quality ◽  
Steel Bar ◽  
New Process ◽  
Cutting Length ◽  
Bending Radius ◽  
The Relationship

The vertical steel bar bending forming is a kind of new process of bending method. The bending speed, bending radius and clamping length H which is the parameters of vertical steel bar bending machine , is directly affect the quality of bending forming parts. This paper calculated the length of reinforcement before being incised and the springback angle of bending steel bar which obtained the reasonable cutting length and bending Angle; Then based on rigid-flexible virtual prototype technology to build the dynamics model of vertical steel bar bending system. Through simulation analysis ,it obtained the relationship between bending speed, bending radius , clamping length H and forming quality of bending steel bar. In this paper, the analysis method have reference value to the design of similar steel bar bending machines.

Analysis of Influence of the Roller Number and Rolling Schedule to Straighten Quality of the Project Steel Bar

2013 ◽  
Vol 437 ◽  
pp. 590-596
Author(s):  
Xi Jian Zheng ◽  
Lei Ma ◽  
Yu Fei Zhu
Keyword(s):  
Reference Value ◽  
System Dynamics Model ◽  
Dynamics Model ◽  
Rolling Schedule ◽  
Actual Measurement ◽  
Steel Bar ◽  
Simulation Results ◽  
Two Parameters ◽  
Domestic Manufacturer

Roll number and rolling schedule are the important parameters affecting the quality of steel bar straightening，when domestic manufacturer design the straightening equipment, these two parameters design basic is by analogy, so it is necessary to study these two parameters. This paper calculated the straightening roller to obtain reasonable roll number; next step quantitative calculate to obtains the theory rolling schedule, in the meantime actual measurement to obtains the practical rolling schedule of the same equipment；then based on rigid-flexible virtual prototype technology to build straightening system dynamics model. At the theory rolling schedule, and the practical rolling schedule for steel bar straighten emulation, obtained straightness and deviation of different diameter steel bar after straightening. By comparison and analysis the simulation results, we obtain the reasonable roll number and rolling schedule. In this paper, this method have reference value to design the roll number and rolling schedule for similar straightening equipment.

The Finite Element Analysis of Steel Cord in Radial Tire’s Belt Ply

2012 ◽  
Vol 501 ◽  
pp. 495-499
Author(s):  
Li Li ◽  
Yun Wang
Keyword(s):  
Simulation Analysis ◽  
Steel Wire ◽  
Reference Value ◽  
Element Analysis ◽  
Steel Wires ◽  
The Finite Element Analysis ◽  
Steel Cords ◽  
Steel Cord ◽  
The Relationship ◽  
Ansys Workbench

The belt ply plays an important role in the performance of radial tires, and makes the adhesion strength among rubber steel cords of the belt ply become the focus of recently research. This paper focuses on the study of the theoretical analysis of the force on the belt ply, obtaining the relationship between the size of the load at the single steel wire and the outside load and the steel wire’s deformation on a single steel wire. Taking advantage of the software ANSYS Workbench 13.0, we carried out the simulation analysis of the single steel wire, and intuitively showed you the deformation and stress of belt ply’s steel wire under the different forces, providing theoretical basis and reference value for further researches on the adhesion fatigue life of rubber steel wires.

Applied-Information Technology with Design and Research on Innovative DIY Training Platform of Learners Based on Mechanical Properties

2014 ◽  
Vol 910 ◽  
pp. 389-392
Author(s):  
Fan Tao Fang ◽  
Deng Yun Ma ◽  
Ding Fang Chen
Keyword(s):  
Parametric Design ◽  
Simulation Analysis ◽  
Virtual Prototyping ◽  
Great Difficulty ◽  
Dynamics Simulation ◽  
Practical Skills ◽  
Laboratory Equipment ◽  
Manual Processing ◽  
Virtual Prototyping Technology

Since the open lab cannot improve the students’ practical ability in a good manner, and the full-featured laboratory equipment has a high cost, this paper thus designs a students’ innovative DIY training platform that quickly assists to model the KT board, in order to enhance the students’ practical skills and thinking abilities, and improve the quality of experiment teaching. The platform solves the existing DIY modeling’s issues of great difficulty in manual processing, low precision and long cycle. Based on the design platform of SolidWorks, this paper completes the parametric design of the device virtual prototype, adopts the virtual prototyping technology to make dynamics simulation analysis towards the critical parts, and verifies the rationality of this mechanism design and correctness of function implementation.

A New Bending Technique for Very Thin Metal Tubes

2010 ◽  
Author(s):  
Shi-Hong Zhang ◽  
Shi-Qing Chen ◽  
Han Xiao ◽  
Hai Liu
Keyword(s):  
Back Pressure ◽  
Thin Metal ◽  
Tube Surface ◽  
Forming Quality ◽  
Flow Capacity ◽  
Bending Process ◽  
New Process ◽  
Lubrication Condition ◽  
Good Flow

A new bending technique was presented for forming very thin metal tubes, which is characterized by ball filler in the tube as force-transferring media during bending process. Due to the good flow capacity and non-uniform pressure, ball filler is considered as an alternative filler to bend very thin tubes. The experiments of ball filler push bending were carried out for very thin copper tubes. The results indicate that the back pressure and lubrication condition have great effects on the forming quality of the tubes. As the back pressure increases and/or lubrication condition improves, the tube surface quality is improved. The ovality of the bent tube is small, and the intrados and extrados wall thickness are both thickened and changed uniformly, which indicates that the new process applied to form the very thin tubes is feasible.

scholarly journals Modeling and simulation on speed prediction of bypass pipeline inspection gauge in medium of water and crude oil

2020 ◽  
pp. 002029402094712
Author(s):  
Zengmeng Zhang ◽  
Yong Yang ◽  
Jiaoyi Hou ◽  
Yongjun Gong
Keyword(s):  
Crude Oil ◽  
Low Cost ◽  
Reference Value ◽  
Dynamics Simulation ◽  
Pipeline Inspection ◽  
No Consumption ◽  
Deformation Amount ◽  
Speed Prediction ◽  
The Relationship ◽  
Moving Speed

Bypass pipeline inspection gauges have the advantages of low cost and bringing no consumption in transportation efficiency and have been widely used in pipe cleaning, inspecting, and maintaining operations. The moving speed of bypass pipeline inspection gauges will seriously affect the results of the operations, so there are strict requirements on the moving speed of bypass pipeline inspection gauges. Because the moving speed of pipeline inspection gauge is difficult to measure or control in real time, it is important to predict it. This paper studies the influencing factors and their impact methods of pipeline inspection gauges’ motion. Through the combination of computational fluid dynamics simulation and friction mathematical model, the relationship between the value of the bypass hole diameter and the pipeline inspection gauges’ moving speed was studied. Under the selected research conditions, when the diameter of the bypass hole is increased from 0.1 to 0.5 m, the moving speed of pipeline inspection gauge in water and crude oil is, respectively, decreased from 2.779 to 0.589 m/s and from 2.777 to 0.373 m/s, and the relationship between them can be approximately described by a function. Based on this principle, the moving speed of pipeline inspection gauge can be predicted mathematically. The experiments also indicate that the density and dynamic viscosity of the transport medium and the deformation amount of the bypass pipeline inspection gauge sealing disk will affect the movement state of pipeline inspection gauge in the pipeline. This research has guiding significance for the design of the pipeline inspection gauges’ structure size, which is beneficial to the pipeline robot to better meet the needs of cleaning, inspecting, and maintaining operations, and has reference value for related researches.

scholarly journals Simulation analysis of the significance and interaction of influencing factors on mixing uniformity of double drum recycling mixing plant

2021 ◽  
Author(s):  
Dengcheng Ma ◽  
Chao Chen ◽  
Chengqi Liu
Keyword(s):  
Influencing Factors ◽  
Rotation Speed ◽  
Simulation Analysis ◽  
Asphalt Mixture ◽  
Aggregate Size ◽  
Recycled Asphalt ◽  
Factors Affecting ◽  
Installation Angle ◽  
The Relationship

Abstract The mixing uniformity of the double drum recycling mixing plant has an important effect on the quality of recycled asphalt mixture. The mixing uniformity of the double drum recycling mixing plant not only depends on the axial installation angle of the blade, the radial installation angle of the blade, the phase angle of the stirring arm, the inclination angle of the drum, and the rotation speed of the drum, but also on the interaction between these factors. In order to further clarify the relationship between the mixing uniformity and the above factors, the significance and interaction of influencing factors of mixing uniformity were studied based on EDEM and response surface methodology (RSM). The result shows that the factors affecting the mixing uniformity of the aggregates are significantly different when the aggregate size is different. Therefore, when studying the mixing uniformity of a mixing plant, it is not comprehensive to conduct research on a certain factor in a single-sided manner. Instead, the main factors and the interaction between the factors should be considered comprehensively.

The Relationship Between Interoception and Metacognition

2016 ◽  
Vol 30 (2) ◽  
pp. 76-86 ◽  
Author(s):  
Judith Meessen ◽  
Verena Mainz ◽  
Siegfried Gauggel ◽  
Eftychia Volz-Sidiropoulou ◽  
Stefan Sütterlin ◽  
...  
Keyword(s):  
Memory Performance ◽  
Memory Task ◽  
Demographic Characteristics ◽  
Metacognitive Awareness ◽  
Interoceptive Awareness ◽  
Future Research ◽  
Heartbeat Perception ◽  
Interoceptive Accuracy ◽  
The Relationship

Abstract. Recently, Garfinkel and Critchley (2013) proposed to distinguish between three facets of interoception: interoceptive sensibility, interoceptive accuracy, and interoceptive awareness. This pilot study investigated how these facets interrelate to each other and whether interoceptive awareness is related to the metacognitive awareness of memory performance. A sample of 24 healthy students completed a heartbeat perception task (HPT) and a memory task. Judgments of confidence were requested for each task. Participants filled in questionnaires assessing interoceptive sensibility, depression, anxiety, and socio-demographic characteristics. The three facets of interoception were found to be uncorrelated and interoceptive awareness was not related to metacognitive awareness of memory performance. Whereas memory performance was significantly related to metamemory awareness, interoceptive accuracy (HPT) and interoceptive awareness were not correlated. Results suggest that future research on interoception should assess all facets of interoception in order to capture the multifaceted quality of the construct.

The relationship between optimism, personal control and quality of life of patients with COPD

2002 ◽  
Author(s):  
R. Arnold ◽  
A. V. Ranchor ◽  
N. H. T. ten Hacken ◽  
G. H. Koeter ◽  
V. Otten ◽  
...  
Keyword(s):  
Quality Of Life ◽  
Personal Control ◽  
The Relationship

Using the alveograph in developing requirements for the quality of flour for wafer sheet production

2020 ◽  
Vol 29 (12) ◽  
pp. 52-58
Author(s):  
E.P. Meleshkina ◽  
◽  
S.N. Kolomiets ◽  
A.S. Cheskidova ◽  
◽  
...  
Keyword(s):  
Rheological Properties ◽  
Quality Indicators ◽  
Wheat Flour ◽  
Mathematical Statistics ◽  
Intended Purpose ◽  
The Future ◽  
Relationship Of ◽  
The Relationship

Objectively and reliably determined indicators of rheological properties of the dough were identified using the alveograph device to create a system of classifications of wheat and flour from it for the intended purpose in the future. The analysis of the relationship of standardized quality indicators, as well as newly developed indicators for identifying them, differentiating the quality of wheat flour for the intended purpose, i.e. for finished products. To do this, we use mathematical statistics methods.

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