Papers by Keyword: Reverse Engineering

Abstract: A prosthetic replaces any missing human body part visibly and also aims to resume the normal functionality of the part. Reverse engineering extracts information from a present model or available design and develops a new model using advanced CAD tools. Nowadays the reverse engineered part can be combined with rapid prototyping by various software and integration of CAD-CAM platforms. In this paper, a new method to reverse engineer the residual limb information for lower limb amputees, in order to use it for analyzing and developing a prosthetic socket by scanning and developing a CAD model is proposed. Along this are discussed, the advantages and challenges. This work falls in the emerging field of interdisciplinary engineering, combining medical and advanced mechanical engineering on a humanitarian platform

Abstract: Ring as a souvenir and decorations for common people. Due to the design of the market a lot of repetition, people often wish have a unique custom ring , which often have personal logo. This paper Introduces a method of through the fingers to do a CT scan, reverse engineering software and 3 d printing to manufacture custom unique ring for people, This method has high practical value.

Abstract: In the paper a concept of internal support of remote operated weapon station mounts on civil vehicle Toyota Landcruiser L200 was presented. The support was placed inside the standard vehicle structure. The geometry of internal surfaces of structured was resembled with the use of 3D laser scanner. Designed additional support structure was used to simulate the impulsive load by shooting 12.7 machine gun equipped with muzzle brake. Results of simulation were presented and discussed.

Abstract: A research center that is used to verify the identification of selected algorithms and methods for secure grip of components by industrial robot was created within the project of applied research at the department. It contributes to enhancing the effectiveness of palletizing - assembly cells.

Abstract: The increasing complexity of software systems is making source code analysis a more economic option to automate the identification of defects, vulnerabilities and inefficiencies. This paper initially outlines the general anatomy of automatic source code analyzers, dimensions of analysis that can be performed with today’s state-of-the-art tools, various limitations of automatic source code analysis in the areas of programming language coverage, quantity of false positive claims, system architecture breakdowns and code/time complexity. The paper is concluded by presenting future tentative trends of source code analysis.

Abstract: The applications areas of the multipoint forming technology are very large, due to its flexibility, one of them being medicine, with the field of cranioplasty. For reconstruction of a skull part, a deformed sheet metal part made from titanium alloy could be used. The paper investigates virtual steps in obtaining the sheet metal part for this scope. First the part skull is measured and using reverse engineering is recreated. Then using an original algorithm and a program, the geometry of the mutipoint die is obtained. A FEM analysis is made for the study of the titanium sheet metal behaviour in multipoint forming. The virtual part quality is evaluated in terms of springback and stresses state variation. The results are important for the real implementation of this technology in manufacturing cranial prostheses.

Abstract: The paper deals with a description of the creation of CAD model (file format .IGES) based on polygon mesh (file format .STL) obtained by 3D scanning. On the basis of the imported polygon mesh into Reverse Engineering software, it is possible to create surface (or solid) CAD model. For CAD model created from a polygon mesh, a model of screw propeller was chosen. The paper also presents a color deviation map acquired by comparison between a polygon mesh and a CAD model. The 3D digitizing was performed by 3D scanner GOM ATOS II SO TripleScan; GOM ATOS Professional v7.5 SR2 software was used for processing of the scanned data and Delcam PowerSHAPE 2015 CAD software was used for reverse modeling.

Abstract: Reverse engineering process has been demonstrated to be reliable solution in solving problems regarding missing information and/or details referred to the functional areas of parts. Based on the specific activities of the chain of processes that defines the reverse engineering concept it can be collected essential information in order to reconstitute important zones of broken parts. The present paper describes an approach that was used to recover a plastic gear part. The case study provided a moulded injected plastic part that was broken during the normal function. The entire process supposed scanning the toothed area that remained and rebuild the contour that was used in CAM software as input data and especially the machining strategy used to perform both sides of the part. The machining process was employed on a CNC graving machine tool.

Abstract: The function of the fan is to reduce heat in the radiator where hot cooling liquid is circulated. The radiator fan blades are made up of various materials nowadays and the legacy material used is steel. This paper presents the static analysis of the radiator fan and at the outcome we analyze the failure of the entire blade taking into design consideration. The analysis of the radiator fan is executed to different types of materials to check and evaluate the material and process conditions which withstand the dynamic and structural loads. In the paper design of the blade is done through reverse engineering. The static analysis is done using ANSYS where the 3D solid model of the radiator fan is considered for structural analysis. The various loads and properties and applied through the entire length of the radiator fan. The analysis leads us to proposal of suitable material to withstand all the loads. The Fiber Reinforced Plastic (FRP) material is tested and considered.

Abstract: This paper presents a study to redesign the hand and wrist support device with improved ergonomics and comfort to the patient by using Reverse Engineering (RE) methods And Additive Manufacturing (AM) process. An initial survey was conducted through a questionnaire for early response on hand and wrist support device. CAD software to facilitate data and redesign the hand and wrist support device was used. For the scanning process, a digitiser was used to obtain the hand shapes using fake statue and hand shape made ​​of wax. Then the CAD model of the hand and wrist support device was build with the Fused Deposition Modeling machine to produce the prototype. The results of the simulation analysis indicates that the design pressure of the hand and wrist support produced with the FDM machine are safe to use based on the safety factor which is higher than 1. The study also shows that by using RE and AM, product development cycle time and manufacturing cost of hand and wrist support device can be significantly reduced.