scholarly journals Lightweight Design of Front Suspension Upright of Electric Formula Car Based on Topology Optimization Method

2020 ◽  
Vol 11 (1) ◽  
pp. 15 ◽  
Author(s):  
Jixiong Li ◽  
Jianliang Tan ◽  
Jianbin Dong
Keyword(s):  
Topology Optimization ◽  
Optimization Design ◽  
Lightweight Design ◽  
Geometric Model ◽  
Load Condition ◽  
Optimization Method ◽  
Structure Design ◽  
Front Suspension ◽  
Emergency Braking ◽  
Topology Optimization Method

In order to obtain a lightweight front upright of an electric formula car’s suspension, the topology optimization method is used in the front upright structure design. The mathematical model of the lightweight optimization design is constructed, and the geometric model of the initial design of the front upright is subjected to the ultimate load condition. The structural optimization of a front upright resulted in the mass reduction of the upright by 60.43%. The optimized model was simulated and verified regarding the strength, stiffness, and safety factor under three different conditions, namely turning braking, emergency braking, and sharp turning. In the experiment, the uprights were machined and assembled and integrated into the racing suspension. The experimental results showed that the optimized front uprights met the requirements of performance.

scholarly journals A topology optimization method of robot lightweight design based on the finite element model of assembly and its applications

2020 ◽  
Vol 103 (3) ◽  
pp. 003685042093648
Author(s):  
Liansen Sha ◽  
Andi Lin ◽  
Xinqiao Zhao ◽  
Shaolong Kuang
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Topology Optimization ◽  
Lightweight Design ◽  
Element Model ◽  
Optimization Method ◽  
Maximum Displacement ◽  
Element Analysis ◽  
Upper Limb Exoskeleton ◽  
Topology Optimization Method

Topology optimization is a widely used lightweight design method for structural design of the collaborative robot. In this article, a topology optimization method for the robot lightweight design is proposed based on finite element analysis of the assembly so as to get the minimized weight and to avoid the stress analysis distortion phenomenon that compared the conventional topology optimization method by adding equivalent confining forces at the analyzed part’s boundary. For this method, the stress and deformation of the robot’s parts are calculated based on the finite element analysis of the assembly model. Then, the structure of the parts is redesigned with the goal of minimized mass and the constraint of maximum displacement of the robot’s end by topology optimization. The proposed method has the advantages of a better lightweight effect compared with the conventional one, which is demonstrated by a simple two-linkage robot lightweight design. Finally, the method is applied on a 5 degree of freedom upper-limb exoskeleton robot for lightweight design. Results show that there is a 10.4% reduction of the mass compared with the conventional method.

Optimization design of uncertainty fluid topology in the parallel connection of double pump

2014 ◽  
Vol 11 (3) ◽  
pp. 311-316
Author(s):  
J. Liu ◽  
Z. Wei
Keyword(s):  
Topology Optimization ◽  
Optimization Design ◽  
Optimization Method ◽  
Social Benefits ◽  
Filling Material ◽  
Engineering Model ◽  
Parallel Connection ◽  
Load Pressure ◽  
Filling Station ◽  
Topology Optimization Method

This paper analyzes the characteristics of paste filling material and the parallel output of double pump. By combining the equipment layout of the paste filling station, using the uncertainty fluid topology optimization method based on SIMP to optimize parallel connection structure, we designed the engineering model optimized connection. The optimized connection improves the capacity of the paste filling pump, reduces the filling energy consumption and the load pressure of the pump, and can achieve good economic and social benefits.

BIOMIMETIC STRUCTURE DESIGN OF DRAGONFLY WING VENATION USING TOPOLOGY OPTIMIZATION METHOD

2014 ◽  
Vol 14 (04) ◽  
pp. 1450078 ◽  
Author(s):  
JIYU SUN ◽  
MINGZE LING ◽  
CHUNXIANG PAN ◽  
DONGHUI CHEN ◽  
JIN TONG ◽  
...  
Keyword(s):  
Topology Optimization ◽  
Optimization Method ◽  
Structure Design ◽  
Staggered Grid ◽  
Wing Venation ◽  
Quantitative Models ◽  
Dragonfly Wing ◽  
Wing Motion ◽  
Dragonfly Wings ◽  
Topology Optimization Method

Scientists have carried out research for various biomimetic applications based on the dragonfly wings because of the superb flying skills and lightsome posture. The wings of dragonflies are mainly composed of veins and membranes, which give rise to the special characteristics of their wings that make dragonflies being supremely versatile, maneuverable fliers. Mimicking the dragonfly wing motion is of great technological interest from application's point of view. However, the major challenge is the biomimetic fabrication to replicate the wing motion due to the very complex nature of the wing venation of dragonfly wings. In this regard, the topology optimization method (TOM) is useful to simplify object's structure while retaining its mechanical properties. In this paper, TOM is employed to simplify and optimize the venation structure of dragonfly (Pantala flavescens Fabricius) wing that is captured by a 3D scanner and numerical reconfiguration. Combined with the material parameters obtained from nanoindentation testing, the quantitative models are established based on a finite element (FE) analysis and discussed in static range. The quantitative models are then compared with the square frame, staggered grid frame and hexagonal frame to examine the potentials of the biomimetic structure design for the fabrication of greenhouse roof.

scholarly journals Advanced Optimization Design of Cross Beams Structure

2014 ◽  
Vol 8 (1) ◽  
pp. 117-123
Author(s):  
Ke Zhang ◽  
Xuan Mu ◽  
Dehong Zhao ◽  
Yuhou Wu
Keyword(s):  
Topology Optimization ◽  
Optimization Design ◽  
Simulation Analysis ◽  
Lightweight Design ◽  
Optimization Method ◽  
Production Costs ◽  
Structure Quality ◽  
Machining Center ◽  
Traditional Structure ◽  
Inherent Frequency

Solid Isotropic Microstructure with Penalization(SIMP) in topology optimization was deeply analyzed, and thus SIMP topology optimization criteria algorithm was deduced. Simulation analysis to the results was also conducted by Ansys, so as the structural lightweight design to machine crossbeams of the HTM series gantry. By verifying, the structure was 3.8% lower than the traditional structure quality, stiffness increased by 16.07%, and the overall inherent frequency was improved. By applying topology optimization method to the design process of the machining center HTM series, ma-terial utilization is improved and production costs were reduced.

Lightweight Design of PLATE ShearS Bed Based on Topology Optimization and Test Methods

2013 ◽  
Vol 568 ◽  
pp. 143-149
Author(s):  
Yong Wang ◽  
Kun Li ◽  
Bao Ping Cui ◽  
Zu Fang Zhang
Keyword(s):  
Topology Optimization ◽  
Lightweight Design ◽  
Optimization Method ◽  
Maximum Principal Stress ◽  
Test Methods ◽  
Total Displacement ◽  
Design Requirements ◽  
Improvement Scheme ◽  
Different Thickness ◽  
Topology Optimization Method

In order to meet the lightweight design requirements of one swing-type plate shears, the topology optimization method is applied to improve the structure of bed. According to the analysis of the actual working conditions, the reasonable load and boundary conditions are determined. The conceptual model of bed structure is established by using topology optimization method. Lightweight improvement scheme is proposed based on the topology optimization results, and the rationality of scheme is verified by test and analysis. Different parts of the bed are thickened or thinned, and the influences of different thickness of the stiffener on the maximum principal stress, total displacement, displacement in Y direction and weight of bed structure model are analyzed. A reasonable lightweight scheme of shear machine bed is proposed. The weight of the bed is reduced and the lightweight purpose is finally achieved in the case of meeting the requirements of shearing accuracy.

scholarly journals Topology optimization of transmission gearbox under multiple working loads

2018 ◽  
Vol 10 (11) ◽  
pp. 168781401881345 ◽  
Author(s):  
Mingxuan Liang ◽  
Jianhong Hu ◽  
Shuqing Li ◽  
Zhigao Chen
Keyword(s):  
Finite Element ◽  
Topology Optimization ◽  
Finite Element Model ◽  
Lightweight Design ◽  
Dynamic Performance ◽  
Reference Value ◽  
Element Model ◽  
Optimization Method ◽  
Dynamic Excitation ◽  
Topology Optimization Method

This article is concerned with topology optimization of transmission gearbox under multiple working loads by taking dynamic performance as research object. First, the dynamic excitation model and finite element model are established, the vibration responses of the key points on gearbox are obtained by applying dynamic excitation on finite element model based on modal dynamic method, and the simulation responses are compared with testing results to validate finite element model. Finally, the gearbox structure is optimized by utilizing topology optimization method, and the lightweight model of transmission gearbox structure is redesigned. The dynamic performance indexes such as natural frequency are improved obviously, which indicates that the topology optimization method is very effective in optimizing dynamic performance of complex gearbox structure. The research has an important theoretical significance and reference value for lightweight design of transmission gearbox structure.

Topology Optimization of Thin-Shell Frame with Surface Loads

2013 ◽  
Vol 483 ◽  
pp. 484-488
Author(s):  
Yong Guo Ke ◽  
Li Ma ◽  
Yuan Yuan Du
Keyword(s):  
Topology Optimization ◽  
Thin Shell ◽  
Lightweight Design ◽  
Mathematic Model ◽  
Optimization Method ◽  
Dump Truck ◽  
Heavy Duty ◽  
Shaped Container ◽  
Surface Loads ◽  
Topology Optimization Method

A topology optimization method of thin-shell frame with surface loads is proposed in this paper and the mathematic model of this topology optimization method is introduced. Based on this proposed method, the procedure of lightweight design for special-shaped container is introduced, then, the lightweight design of 30t special-shaped container of heavy-duty dump truck is carried out. The result shows that the proposed method is very practicable and effective.

Structural Topology Optimization of the Column of Form Grinding Machine

2010 ◽  
Vol 455 ◽  
pp. 397-401
Author(s):  
S.G. Yao ◽  
Hang Li
Keyword(s):  
Topology Optimization ◽  
Optimization Design ◽  
Optimization Method ◽  
Structural Topology Optimization ◽  
Structural Topology ◽  
Constraint Condition ◽  
Structural Dynamic ◽  
Structural Dynamic Model ◽  
Grinding Machine ◽  
Topology Optimization Method

Based on Topology optimization method of continuum the structural dynamic model has been built by constraint condition of volume and objective function of column natural frequency. In order to improve precision the dynamic characteristics of non-design region have been considered in optimization process. The column of structural optimization design has been done by applying topology optimization. The quality has not only reduced, but also the dynamic characteristic of the column has been improved. Thus the design effect has been reached.

Sign in / Sign up

Export Citation Format

Share Document