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.

THE USE OF THREE-DIMENSIONAL MODELING AS A WAY OF INFORMATION AND TECHNICAL SUPPORT OF FORENSIC REGISTRATION

2018 ◽  
Author(s):  
Roman Demchyshak ◽  
Keyword(s):  
Physical Properties ◽  
3D Modeling ◽  
Three Dimensional ◽  
Technical Support ◽  
Modeling Technology ◽  
Three Dimensional Modeling ◽  
Dimensional Modeling ◽  
3D Scanners ◽  
Three Dimensional Models ◽  
Dimensional Object

The article is devoted to the issues of using three-dimensional modeling as a way of information and technical support of forensic registration. It is stated that none of the modern researches focuses on the use of three- dimensional modeling technology of information and technical support of forensic registration. An assessment of the technological capabilities of modern three-dimensional scanners (3D-scanners), which are used (or can be used) in the information and technical support of forensic registration. The technological possibilities of three-dimensional modeling are analyzed, in particular in the construction of three-dimensional models of the scene, the creation of virtual rooms for educational purposes, forensic examinations, etc. Emphasis is placed on the fact that in criminology, three-dimensional (3D) modeling is carried out according to the rules of solid modeling (in which the key is to reproduce the physical properties of three-dimensional modeling objects). It is the physical properties of forensic registration objects, as a rule, that are the key information, the fixation of which is carried out within the framework of forensic registration. It is determined that the prospects of using three-dimensional (3D) modeling during forensic registration are to ensure the possibility of creating objects of accounting using additive technologies (ie three-dimensional printing (3D- printing)). The position is expressed that the technologies of three-dimensional (3D) modeling can be applied, first of all, in: trasological accounting; ballistic accounting; cold steel accounting; registration of persons on the basis of appearance; accounting of materials, substances and products. Therefore, with 3D modeling, it is possible to reproduce a certain three-dimensional object if it has been properly scanned. The described technologies create opportunities not only to quickly create exact copies or duplicates of evidence or other objects that are placed in forensic accounting, and use them for other research or for use as objects of orientation during operational or investigative actions.

scholarly journals Application of 3D Modeling Technology in Engineering Graphics

2021 ◽  
Vol 2074 (1) ◽  
pp. 012079
Author(s):  
Yan Zhang ◽  
Qinghua Li ◽  
Chunshan He ◽  
Liai Pan
Keyword(s):  
3D Modeling ◽  
Design Method ◽  
Three Dimensional ◽  
Modeling Technology ◽  
Teaching Reform ◽  
Three Dimensional Modeling ◽  
Dimensional Modeling ◽  
Engineering Drawings ◽  
The Times

Abstract With the development of technology and the progress of the times, the application methods and expression methods (including teaching methods) of engineering drawings have undergone tremendous changes. This article analyzes the reasons that restrict the three-dimensional design method can not completely replace the two-dimensional drawing in the short term, and proposes the teaching reform direction that combines the three-dimensional modeling with the traditional graphics content. It clarifies the role of 3D modeling content in graphics courses at this stage, and explains the specific methods of introducing 3D modeling in different stages of graphics courses and the choice of teaching software.

THREE-DIMENSIONAL MODELING AS A SYSTEM FOR DISPLAYING TOTAL CHEMICAL SOIL POLLUTION

2021 ◽  
pp. 6-14
Author(s):  
N.P. KARPENKO ◽  
◽  
M.A. SHIRYAEVA
Keyword(s):  
Soil Contamination ◽  
Soil Pollution ◽  
3D Modeling ◽  
Catchment Area ◽  
Three Dimensional ◽  
Environmental Situation ◽  
Three Dimensional Modeling ◽  
Dimensional Modeling ◽  
Total Soil ◽  
Three Dimensional Models

The method of three-dimensional model in the system of computer modeling MathCad and Autodesk 3ds Max by categories of total soil pollution is developed. A visualization block and an analytical block have been developed which are based on calculated mathematical models for analyzing and evaluating the environmental situation, risks, and environmental safety of the territory. Three-dimensional models of relief mapping of the Pekhorka river fl oodplain are constructed by integrating them with the help of a programming environment and optimized 3D modeling programs. Three-dimensional models with total soil contamination for water body sections are constructed. On the example of some sections of the catchment area of the Pekhorka river in the Balashikha region, models with soil contamination by the total ZC indicator were created. The development of 3D modeling techniques allows you to create predictive scenarios more accurately with a high degree of detail, as well as quickly approach the solution of environmental problems. Optimization of three-dimensional modeling in the fi eld of problems related to the catchment area contributes to the further operational solution of problems of rational land use and improvement of the environmental situation.

scholarly journals Mechanical design and analysis of a gripper for non-cooperative target capture in space

2018 ◽  
Vol 10 (11) ◽  
pp. 168781401881064 ◽  
Author(s):  
Yili Zheng ◽  
Guannan Lei ◽  
Mingwei Zhang ◽  
Qianbo Che
Keyword(s):  
Mechanical Design ◽  
Three Dimensional ◽  
Simulation Software ◽  
Microgravity Environment ◽  
Three Dimensional Modeling ◽  
Target Capture ◽  
Model Collision ◽  
Rigid Connection ◽  
Aluminum Honeycomb ◽  
Ground Test

Space grippers are the key devices for accomplishing space non-cooperative target capture, which has a great significance for satellite services and space debris removal. This article proposes a novel mechanical gripper device for the capture of aluminum honeycomb panels of non-cooperative satellites. The gripper was modeled and assembled in the three-dimensional modeling platform UGNX. The model was imported into the simulation software ADAMS. ADAMS is capable of analyzing the kinematic feasibility of the gripper model. Collision and penetrating power analysis of the mechanical claws into an aluminum honeycomb plate were carried out in LS-DYNA. Through non-vertical piercing experiment, the maximum approaching angle tolerance is 10°. The established rigid connection can withstand a destructive force greater than 1000 N. A prototype of the mechanical gripper is built. A ground test was carried out with this prototype, in which a test-platform simulated the space microgravity environment. The results certified that the prototype could reach the target at a relative speed of 0.5 m/s and then quickly complete the grabbing motion and establish a rigid connection. The experiment shows that this mechanical gripper can accomplish the task of repeatedly capturing the surface of non-cooperative space satellites.

Three-Dimensional Modeling of Container Cranes

2013 ◽  
Author(s):  
Andrea Arena ◽  
Arnaldo Casalotti ◽  
Walter Lacarbonara ◽  
Matthew P. Cartmell
Keyword(s):  
3D Modeling ◽  
3D Model ◽  
Initial Conditions ◽  
Three Dimensional ◽  
Container Cranes ◽  
Three Dimensional Modeling ◽  
Dimensional Modeling ◽  
Time Marching ◽  
Constrained Model ◽  
2D And 3D

This work deals with three-dimensional (3D) modeling of container cranes including the hoisting cable length commands. The proposed models allow to effectively study the 3D motion caused by the eccentricity of initial conditions or loading conditions such as those induced by wind. The container is modeled as a 3D rigid body while the hoisting cables are treated either as inextensible trusses or as linearly elastic straight, taut cables. The 3D model with inextensible cables is shown to coalesce into existing two-dimensional models under the relevant planarity constraints. Details about the treatment of the internal inextensibility constraints are discussed. Time-marching simulations are carried out to show representative 2D and 3D responses to initial conditions and commanded motion of the trolley. The main differences between the constrained model and that with the elasticity of the cables are highlighted in the framework of a few significant design scenarios.

Twin-Tracked Robot Obstacle Three-Dimensional Modeling and Simulation

2012 ◽  
Vol 479-481 ◽  
pp. 2351-2354 ◽  
Author(s):  
Bing Wu ◽  
Zen Ju Wei
Keyword(s):  
Process Development ◽  
Three Dimensional ◽  
Performance Testing ◽  
Virtual Prototype ◽  
Simulation Software ◽  
Dynamics Simulation ◽  
Prototype Model ◽  
Three Dimensional Modeling ◽  
Development Costs ◽  
Mechanical Products

Obstacle robot crawler is a very complex mechanical products. Crawler robot obstacle for traditional development pattern of the development cycle there is a long, complicated process, development costs are too high, difficult issues such as performance testing, this twin-tracked to the more impaired actual robot context of the study, the application of simulation technology robot design and development research. Use of 3D modeling software Pro / E and two-body dynamics simulation software to create more obstacles the robot tracked the virtual prototype model, the virtual prototype model based on a variety of simulation experiments, and the test results analysis.

Three-Dimensional Recognition Technology for Rare English Words

2014 ◽  
Vol 644-650 ◽  
pp. 4121-4124
Author(s):  
Qiang Chen ◽  
Li Mei Xu
Keyword(s):  
3D Modeling ◽  
3D Model ◽  
Parallel Evolution ◽  
Three Dimensional ◽  
Three Dimensional Modeling ◽  
Dimensional Modeling ◽  
3D Data ◽  
Evolution Computation ◽  
Fitting In ◽  
The Relationship

This paper mainly studies modeling and recognition of 3D English words’ images. With the development of secondary modeling, segmentation and recognition theories and the application of evolution computation in 3D modeling and recognition, this paper analyzes the issues of parameter fitting in the 3D model, multi-object scene segmentation and parts recognition aiming at the 3D data features in the English words. The 3D model is used as the primitives part to model and segment the scenes and the group parallel evolution and the relationship matching theories are introduced into the 3D modeling and recognition to deeply identify the rare English words’ images. The paper searches for a practical and efficient three-dimensional modeling and identification scheme.

Customized Orbit and Frontal Bone Implants

2020 ◽  
Vol 36 (06) ◽  
pp. 711-714
Author(s):  
Weitao Wang ◽  
Arya Namin ◽  
Tom Shokri ◽  
Yadranko Ducic
Keyword(s):  
Three Dimensional ◽  
Bone Grafts ◽  
Frontal Bone ◽  
Bone Reconstruction ◽  
Bone Implants ◽  
Modeling Technology ◽  
Three Dimensional Modeling ◽  
Dimensional Modeling ◽  
Complex Anatomy ◽  
Rapid Fixation

AbstractOrbitocranial reconstruction objectives include creation of a solid barrier between intracranial contents and the environment allowing restoration of physiologic homeostasis and restoration of aesthetic craniofacial contours. Historically, bone grafts have been used for reconstruction but were fraught with unpredictable resorption and imperfect contouring given the complex anatomy of the orbitofrontal bones. With advances in three-dimensional modeling technology, alloplastic custom implants in orbital and frontal bone reconstruction have allowed for rapid fixation reducing surgical times and improved cosmesis.

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