scholarly journals Re-engineering of Cast Product by Topology Optimization

2021 ◽  
Vol 9 (9) ◽  
pp. 1211-1216
Keyword(s):  
Topology Optimization ◽  
Real Time ◽  
3D Model ◽  
Optimization Procedure ◽  
Casting Process ◽  
Software Modeling ◽  
Force Analysis ◽  
Optimization Software ◽  
Cast Product ◽  
Load Conditions

Topology optimization is useful to carrying out the weight reduction and in process cost reduction can be achieved. This kind of optimization input shape and size modification and optimization give us improved product in reduction of material. For this study, planet pinion carrier is selected for topology optimization. Software gives an innovative real-time picture of company activities and ecosystem and links people, ideas and data in a single collaborative environment. The 3DEXPERIENCE platform as an operating system helps companies to achieve operational excellence. Casting is a process where allowances and other things are provided and if we could able to optimize the material and weight of the casting there is a scope for optimization the material size and shape in casting process. Planet pinion carrier which is a cast product is taken from well-known industry for topology optimization. For optimization that product first 3D model is done and this 3D model is given as an input for topology optimization software. Force analysis is carried out by using ANSYS software and then topology optimization procedure is applied accordingly product is optimized. After topology optimization again force analysis is carried out. It has been found that 20 percent reduction is observed in this study. The part details and load conditions are given by well-known industry for topology optimization. Size, shape and cost is reduced by giving various load conditions in FUSION 360 software. Modeling and remodeling is done using software. Comparative study has been done using AUTOCAST software. Part details are calculated and also casting flow and real time for actual casting is simulated by using software.

scholarly journals An algorithm for topology optimization of gear reducer housing elements

2019 ◽  
Vol 287 ◽  
pp. 01020
Author(s):  
Stoyan D. Slavov ◽  
Mariya Iv. Konsulova-Bakalova
Keyword(s):  
Topology Optimization ◽  
3D Model ◽  
Optimization Methods ◽  
Design Stage ◽  
Control Parameters ◽  
Optimization Software ◽  
Optimization Control ◽  
Different Types ◽  
Definition Of ◽  
The Impact

In recent years, topology optimization methods are becoming more widely used in many engineering fields, and they are already being successfully integrated at the design stage of the different types of products. An active field of research in this area is the definition of appropriate constraints in topology optimization models in order to facilitate the production of the optimized objects. An algorithm for topology optimization of housing elements from gear reducers by using the capabilities of CAD-CAE topology optimization software is presented in the current work. The purposed algorithm is taking into account the resulting loads during operation of the reducer, the geometrical and manufacturing constraints of the production process of these housing elements. Obtained results from conducted Taguchi experimental study to investigate the impact of some topology optimization control parameters over optimized 3D-model also are shown and discussed. Conclusions on the applicability of the algorithm have been made.

Structural Topology Optimization Using Frame Elements Based on the Complementary Strain Energy Concept for Eigen-Frequency Maximization

2005 ◽  
Author(s):  
Akihiro Takezawa ◽  
Shinji Nishiwaki ◽  
Kazuhiro Izui ◽  
Masataka Yoshimura
Keyword(s):  
Topology Optimization ◽  
Cross Sections ◽  
Strain Energy ◽  
Optimization Procedure ◽  
Optimization Method ◽  
Structural Topology ◽  
Energy Concept ◽  
Conceptual Design Phase ◽  
Complementary Strain ◽  
Topology Optimization Method

This paper discuses a new topology optimization method using frame elements for the design of mechanical structures at the conceptual design phase. The optimal configurations are determined by maximizing multiple eigen-frequencies in order to obtain the most stable structures for dynamic problems. The optimization problem is formulated using frame elements having ellipsoidal cross-sections, as the simplest case. Construction of the optimization procedure is based on CONLIN and the complementary strain energy concept. Finally, several examples are presented to confirm that the proposed method is useful for the topology optimization method discussed here.

Topology Optimization of Compliant Mechanisms Using Hybrid Discretization Model

2010 ◽  
Vol 132 (11) ◽  
Author(s):  
Hong Zhou
Keyword(s):  
Topology Optimization ◽  
Compliant Mechanisms ◽  
Compliant Mechanism ◽  
Optimization Procedure ◽  
Optimization Method ◽  
Diagonal Element ◽  
Initial Guess ◽  
Stress Constraint ◽  
Design Variables ◽  
Hybrid Discretization

The hybrid discretization model for topology optimization of compliant mechanisms is introduced in this paper. The design domain is discretized into quadrilateral design cells. Each design cell is further subdivided into triangular analysis cells. This hybrid discretization model allows any two contiguous design cells to be connected by four triangular analysis cells whether they are in the horizontal, vertical, or diagonal direction. Topological anomalies such as checkerboard patterns, diagonal element chains, and de facto hinges are completely eliminated. In the proposed topology optimization method, design variables are all binary, and every analysis cell is either solid or void to prevent the gray cell problem that is usually caused by intermediate material states. Stress constraint is directly imposed on each analysis cell to make the synthesized compliant mechanism safe. Genetic algorithm is used to search the optimum and to avoid the need to choose the initial guess solution and conduct sensitivity analysis. The obtained topology solutions have no point connection, unsmooth boundary, and zigzag member. No post-processing is needed for topology uncertainty caused by point connection or a gray cell. The introduced hybrid discretization model and the proposed topology optimization procedure are illustrated by two classical synthesis examples of compliant mechanisms.

The Formal Design Model of a File Management System (FMS)

2013 ◽  
pp. 193-213
Author(s):  
Yingxu Wang ◽  
Cyprian F. Ngolah ◽  
Xinming Tan ◽  
Yousheng Tian ◽  
Phillip C.Y. Sheu
Keyword(s):  
Real Time ◽  
Management System ◽  
Data File ◽  
Abstract Data Type ◽  
Behavioral Models ◽  
Software Modeling ◽  
File Management ◽  
Abstract Data ◽  
Data Objects ◽  
Formal Design

Files are a typical abstract data type for data objects and software modeling, which provides a standard encapsulation and access interface for manipulating large-volume information and persistent data. File management systems are an indispensable component of operating systems and real-time systems for file manipulations. This paper develops a comprehensive design pattern of files and a File Management System (FMS). A rigorous denotational mathematics, Real-Time Process Algebra (RTPA), is adopted, which allows both architectural and behavioral models of files and FMS to be rigorously designed and implemented in a top-down approach. The conceptual model, architectural model, and the static/dynamic behavioral models of files and FMS are systematically presented. This work has been applied in the design and modeling of a real-time operating system (RTOS+).

scholarly journals Scalable Real-Time Planning and Optimization Software Complex for the Purposes of Earth Remote Sensing

2018 ◽  
Vol 51 (32) ◽  
pp. 451-455 ◽  
Author(s):  
Vasiliy Sazonov ◽  
Sofia Sazonova ◽  
Ivan Samylovskiy ◽  
Arseniy Sapelkin ◽  
Stanislav Budzinskiy ◽  
...  
Keyword(s):  
Remote Sensing ◽  
Real Time ◽  
Earth Remote Sensing ◽  
Optimization Software ◽  
Software Complex ◽  
Time Planning
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