scholarly journals A Realization Method for Transforming a Topology Optimization Design into Additive Manufacturing Structures

Engineering ◽  
2018 ◽  
Vol 4 (2) ◽  
pp. 277-285 ◽  
Author(s):  
Shutian Liu ◽  
Quhao Li ◽  
Junhuan Liu ◽  
Wenjiong Chen ◽  
Yongcun Zhang
Keyword(s):  
Topology Optimization ◽  
Additive Manufacturing ◽  
Optimization Design

Optimum design of automobile components using lattice structures for additive manufacturing

2020 ◽  
Vol 62 (6) ◽  
pp. 633-639 ◽  
Author(s):  
Büşra Aslan ◽  
Ali Rıza Yıldız
Keyword(s):  
Topology Optimization ◽  
Additive Manufacturing ◽  
Optimization Design ◽  
Lattice Structure ◽  
Structure Optimization ◽  
The Finite Element Method ◽  
Special Effect ◽  
Design Structure ◽  
Complex Models ◽  
Automobile Components

Abstract In today’s world, reducing fuel consumption is one of the most important goals for the automotive industry. For this reason, weight reduction is one of the main topics in this research and for various companies. In this research, topology optimization was conducted on a suspension arm as a means of ensuring balance in automobiles. Subsequently, the model, formed by topology optimization was filled with a lattice structure and re-optimized by size optimization to obtain optimum dimensions for the model. These operations are described as lattice structure optimization. Additive manufacturing (3D printer) is necessary to produce complex models (after topology and lattice structure optimization). A static analysis of the new models was conducted by using the finite element method, and the results were compared with those of the initial design of the model. As a result of the comparison, positive results were obtained, and it was shown that topology optimization and lattice structural optimization could be used in the design of vehicle elements. According to the results obtained from lattice structure optimization, design structure can be formed more reliably than via topology optimization. In addition, both configurations and layouts of the cellular structures have a special effect on the overall performance of the lattice structure.

Topology optimization design of hydraulic valve blocks for additive manufacturing

2020 ◽  
Vol 234 (10) ◽  
pp. 1899-1912
Author(s):  
Guanlin Xie ◽  
Yongjia Dong ◽  
Jing Zhou ◽  
Zhongqi Sheng
Keyword(s):  
Topology Optimization ◽  
Additive Manufacturing ◽  
Hydraulic System ◽  
Optimization Design ◽  
Lightweight Design ◽  
Block Design ◽  
Reduction Rate ◽  
Material Strength ◽  
Hydraulic Valve ◽  
Valve Block

The hydraulic valve block is a core component of an integrated hydraulic system. In practical usage, it exhibits problems such as material waste, long manufacturing cycle, significant energy loss, and leakage. Based on the aforementioned existing problems, this study presents the design of the hydraulic system valve block based on the valve block design principle. The internal valve channel of the hydraulic valve block is optimized for additive manufacturing technology to avoid auxiliary drilling, solve the problem of potential liquid leakage, and shorten the manufacturing cycle. Thus, it is more suitable for the production of customized complex hydraulic valve blocks. The multiobjective topology optimization method is applied to the lightweight design of the hydraulic valve block to save resources and decrease energy consumption. The results indicate that when compared with the original model, the minimum reduction rate of pressure loss in each oil circuit orifice after optimization of the hydraulic valve block corresponds to 32.02%, the maximum corresponds to 71.38%; the maximum stress of the final design corresponds to 542.9 MPa, which satisfies the material strength requirement; and the mass is decreased by 68.9%. Thus, the lightweight design of the hydraulic valve block is realized.

scholarly journals Correction to: From Topology Optimization Design to Additive Manufacturing: Today’s Success and Tomorrow’s Roadmap

2020 ◽  
Vol 28 (1) ◽  
pp. 269-269
Author(s):  
Liang Meng ◽  
Weihong Zhang ◽  
Dongliang Quan ◽  
Guanghui Shi ◽  
Lei Tang ◽  
...  
Keyword(s):  
Topology Optimization ◽  
Additive Manufacturing ◽  
Optimization Design

scholarly journals A review on the topology optimization of the fiber-reinforced composite structures

2021 ◽  
pp. 54-72
Author(s):  
Zheng Hu
Keyword(s):  
Topology Optimization ◽  
Additive Manufacturing ◽  
Fiber Orientation ◽  
Composite Structures ◽  
Optimization Design ◽  
Optimization Methods ◽  
Topology Design ◽  
Topological Optimization ◽  
Main Challenge ◽  
Orientation Optimization

According to the requirements of the aerospace industry for high strength, high stiffness, and lightweight structural parts, topology optimization has been proved to be an effective product design method. As one of the most conceptual and prospective structural optimization design methods, topology optimization intends to seek the optimal layout of materials in an allowed design region under a given load and boundary conditions. Thus, the object of study in the article is the method of topological optimization of aircraft structures. The goal of this article is to analyze the existing approaches, algorithms, as well as application of the method of topological optimization in the aerospace field in applied problems. The tasks are to describe the existing various approaches methods, features, and research directions of topological optimization as well as to study the possibility of application in the manufacturing process of composite structures. The following results were obtained. The optimization methods are briefly explained and compared, and the advantages and limitations of each approach are discussed. The various ways of simultaneous optimization of fiber orientation and structural topology were described and analyzed. The features of different methods of continuous fiber orientation optimization method were reviewed. The discrete fiber orientation optimization methods were represented. The possibility of multi-scale concurrent topological optimization was described. The combination of topology optimization and additive manufacturing was considered. Finally, the topology optimization of FRC structures which have been resolved in literature are reviewed and the potential research fields requiring more investigation are pointed out. Conclusions. In the article, a comprehensive review of the topology optimization design of FRC structures was presented. The promising way is to combine topology optimization with additive manufacturing techniques. However, these proposed methods may not suitable for other more complex problems, such as bucking stability and natural frequency. Hence, the topology optimization design of complex FRC components under complicated conditions is the main challenge in the future. This can be a new trend in the topology design of FRC structures.

From Topology Optimization Design to Additive Manufacturing: Today’s Success and Tomorrow’s Roadmap

2019 ◽  
Vol 27 (3) ◽  
pp. 805-830 ◽  
Author(s):  
Liang Meng ◽  
Weihong Zhang ◽  
Dongliang Quan ◽  
Guanghui Shi ◽  
Lei Tang ◽  
...  
Keyword(s):  
Topology Optimization ◽  
Additive Manufacturing ◽  
Optimization Design

scholarly journals Design and additive manufacturing of a fatigue-critical aerospace part using topology optimization and L-PBF process

2021 ◽  
Vol 54 ◽  
pp. 238-243
Author(s):  
Akin Dagkolu ◽  
Istemihan Gokdag ◽  
Oguzhan Yilmaz
Keyword(s):  
Topology Optimization ◽  
Additive Manufacturing

Multidisciplinary topology optimization incorporating process-structure-property-performance relationship of additive manufacturing

2021 ◽  
Vol 63 (5) ◽  
pp. 2141-2157
Author(s):  
Shaoying Li ◽  
Shangqin Yuan ◽  
Jihong Zhu ◽  
Weihong Zhang ◽  
Han Zhang ◽  
...  
Keyword(s):  
Topology Optimization ◽  
Additive Manufacturing ◽  
Structure Property ◽  
Relationship Of ◽  
Process Structure ◽  
Property Performance

Topology Optimization Design of Microchannel Plate Based on Velocity Distribution

2021 ◽  
Author(s):  
Guiqian Qiu ◽  
Wei Peng ◽  
Pingnan Huang ◽  
Minqiang Pan
Keyword(s):  
Topology Optimization ◽  
Velocity Distribution ◽  
Optimization Design ◽  
Microchannel Plate
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