scholarly journals Composite Self-healing U-shaped Canal Material and Fabrication Based on Computer 3D Modeling Technology

2020 ◽  
Vol 1578 ◽  
pp. 012011
Author(s):  
Changhong Song ◽  
Yingtao Wang ◽  
Hongbo Wang ◽  
Guichen Zhu
Keyword(s):  
3D Modeling ◽  
Self Healing ◽  
Modeling Technology ◽  
Composite Self

Research and Application of Rapid 3D Modeling Technology based on UAV

2021 ◽  
Author(s):  
Xiaohui Huang ◽  
Jixing Yang ◽  
Xiaotong Liu ◽  
Zhi Zhang ◽  
Li Cui
Keyword(s):  
3D Modeling ◽  
Modeling Technology

Research and Development of Solid Modeling Technology for Impeller Based on UG/Open

2011 ◽  
Vol 121-126 ◽  
pp. 4038-4042
Author(s):  
Gang Li ◽  
Xiu Ting Wei ◽  
Qian Qian Chen
Keyword(s):  
3D Modeling ◽  
Solid Modeling ◽  
Centrifugal Impeller ◽  
Quality Inspection ◽  
Design Quality ◽  
Modeling Technology ◽  
Development Cycle ◽  
Cad Cam ◽  
Product Development Cycle ◽  
Model Database

To realize CAM of impeller cast moulds, this paper developed an automatic 3D modeling system of impellers, based on hydraulic models and UG/Open technology. The system has functions of hydraulic model database correction, vane surfaces modeling, vane surfaces check, impeller solid modeling, and so on. It achieves design quality inspection and automatic solid modeling of centrifugal impeller as well as CAD/CAM integration of cast mould, with the design precision effectively improved and the product development cycle greatly shortened.

scholarly journals Self-Healing of Ionomeric Polymers with Carbon Fibers from Medium-Velocity Impact and Resistive Heating

2013 ◽  
Vol 2013 ◽  
pp. 1-12 ◽  
Author(s):  
Vishnu Baba Sundaresan ◽  
Andrew Morgan ◽  
Matt Castellucci
Keyword(s):  
Carbon Fiber ◽  
Polymer Matrix ◽  
Materials Science ◽  
Polymeric Materials ◽  
Complete Recovery ◽  
Self Healing ◽  
Resistive Heating ◽  
Velocity Impact ◽  
The Impact ◽  
Composite Self

Self-healing materials science has seen significant advances in the last decade. Recent efforts have demonstrated healing in polymeric materials through chemical reaction, thermal treatment, and ultraviolet irradiation. The existing technology for healing polymeric materials through the aforementioned mechanisms produces an irreversible change in the material and makes it unsuitable for subsequent healing cycles. To overcome these disadvantages, we demonstrate a new composite self-healing material made from an ionomer (Surlyn) and carbon fiber that can sustain damage from medium-velocity impact and heal from the energy of the impact. Furthermore, the carbon fiber embedded in the polymer matrix results in resistive heating of the polymer matrix locally, melts the ionomer matrix around the damage, and heals the material at the damaged location. This paper presents methods to melt-process Surlyn with carbon fiber and demonstrates healing in the material through medium-velocity impact tests, resistive heating, and imaging through electron and optical microscopy. A new metric for quantifying self-healing in the sample, called width-heal ratio, is developed, and we report that the Surlyn-carbon fiber-based material under an optimal rate of heating and at the correct temperature has a width-heal ratio of >0.9, thereby demonstrating complete recovery from the damage.

scholarly journals Logistics Engineering Simulation Using Computer 3D Modeling Technology

2021 ◽  
Vol 2143 (1) ◽  
pp. 012018
Author(s):  
Dalong Liu ◽  
Yanfang Pan ◽  
Liwei Li
Keyword(s):  
3D Modeling ◽  
Three Dimensional ◽  
Target Object ◽  
Simulation Software ◽  
Functional Requirements ◽  
Logistics System ◽  
Simulation Research ◽  
Modeling Technology ◽  
Three Dimensional Modeling ◽  
Intelligent Logistics

Abstract 3D modeling technology is an important branch of interdisciplinary fields such as computer graphics, intelligent information processing, computer vision, and artificial intelligence. Through computer digitization, collecting three-dimensional data information of the target object, and then processing and simulation reproduction through computer technology, plays an important role in logistics engineering (LE). The purpose of this paper is the simulation research of LE based on computer three-dimensional modeling technology. This paper takes LE as the research object, firstly elaborates the functional and non-functional requirements of the system separately, and establishes an intelligent logistics system. This paper uses Flexsim simulation software to establish a logistics distribution simulation model. Based on the data collected in the survey, the model is parameterized. Through the data output from the simulation, the simulation data of the original logistics system and the logistics system designed in this paper are compared and analyzed. The simulation output data shows that the total number of products transported in and out of the warehouse of the original system’s 6 transport planes is 15,559, and the total number of products transported in and out of the warehouse of the 6 transport planes in the logistics system proposed in this paper is 17,144 pieces. It can be seen that this system has strong transportation efficiency in LE.

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