Topology Optimization Design of Pure Electric Unitized Body

According to the model devised by the design team of PACE Future Bus and the layout size of pure electric coaches in the market, we used CATIA to make a 3D model and made Topology optimization design by using HyperWorks. After that, we imposed loading according to specific conditions and made structural topology optimization and sized optimization design. Then we checked the coach skeleton beam element model and the strength of shell element model. Finally, the future bus frame was built completely.

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Structural Topology Optimization of the Column of Form Grinding Machine

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.455.397 ◽

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.

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Structure Topology Optimization Design for Compression Box of Horizontal Preloading Domestic Waste Transfer Station

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.475-476.1382 ◽

2013 ◽

Vol 475-476 ◽

pp. 1382-1386

Author(s):

Hui Zhou ◽

Gang Yan Li ◽

Yuan Zhang ◽

Le Li

Keyword(s):

Topology Optimization ◽

Optimization Design ◽

Bottom Plate ◽

Structural Topology Optimization ◽

Structural Topology ◽

Domestic Waste ◽

Side Plate ◽

Structure Topology ◽

Transfer Station ◽

Waste Transfer

Horizontal preloading domestic waste transfer station is the core equipment for domestic waste disposal. Compression equipment is the elementary equipment of horizontal preloading domestic waste transfer station, which should be ensured its mechanical properties and structural lightweight. According to the compression box structure in this paper, structural topology optimization model is established. By using HyperWorks software, the result of structural topology optimization result of compression box is obtained. Based on the result of topology optimization, the structural improvement design model of compression box is established, and the number, location, size of strengthening rib for bottom plate, top plate, side plate are optimal designed so as to realize structural lightweight.

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Evolutionary Optimization Design of the Structural Dynamic Characteristics under Multi Constraints

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.29-32.906 ◽

2010 ◽

Vol 29-32 ◽

pp. 906-911

Author(s):

Zhi Ying Mao ◽

Guo Ping Chen ◽

Huan He

Keyword(s):

Topology Optimization ◽

Dynamic Characteristics ◽

Mode Shape ◽

Optimization Design ◽

Structural Topology Optimization ◽

Structural Topology ◽

Sensitivity Equation ◽

Structural Dynamic ◽

Nodal Lines ◽

Structural Dynamic Characteristics

This paper studies structural topology optimization, and the position of mode shape nodal lines is introduced to the equation as a constraint firstly. It builds the sensitivity equation of the position of mode shape nodal lines and frequency. Thereafter, the element deletion criterion with frequency and position of mode shape nodal lines constraints is afford. Then on the base above, it provides the fit path of topology optimization with constraints of frequency and the position of mode shape nodal lines. Finally, a numerical example demonstrates that the method used in this paper is effectively.

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Heat Conduction Structural Topology Optimization Based on RAMP

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.52-54.1692 ◽

2011 ◽

Vol 52-54 ◽

pp. 1692-1697 ◽

Cited By ~ 1

Author(s):

Jia Chun Li ◽

Wen Te Tu ◽

Xu Dong Yang ◽

Jian Fu ◽

Yong Tao Wang

Keyword(s):

Temperature Field ◽

Topology Optimization ◽

Heat Conduction ◽

Optimization Design ◽

Engineering Application ◽

Optimization Techniques ◽

Structural Topology Optimization ◽

Structural Topology ◽

Design Problems ◽

Numerical Instabilities

Based on topology optimization techniques of structural mechanics, an effective method for solving the structural design problems of heat transfer is presented in this paper. The topology optimization model of heat conduction is then constructed and the corresponding Optimization Criteria based on density approach is inferred to solve the optimal heat conduction equation of temperature field. A Filtering technique is employed in density field to eliminate numerical instabilities in the process of topology optimization. Some numerical examples are presented to demonstrate the accuracy and the applicability of the present method, theory and algorithm. This research provides a new idea and an access to the structural topology optimization design of temperature field, and is of good engineering application value.

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Research on Techniques of Structural Topology Optimization Using Cellular Automaton

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.308-310.987 ◽

2011 ◽

Vol 308-310 ◽

pp. 987-993

Author(s):

Yi Xian Du ◽

Wei Wang ◽

Qi Hua Tian ◽

Jin Run Hu

Keyword(s):

Topology Optimization ◽

Cellular Automaton ◽

Optimization Design ◽

Mechanical Response ◽

Optimization Problems ◽

Structural Topology Optimization ◽

Structural Topology ◽

Computationally Efficient ◽

Local Rule ◽

Loaded Structure

By integrating cellular automaton (CA) theory into topology optimization of continuum, the local rule is defined for sensitivity analysis and updating of the design variable, according to the analysis of the structural mechanical response. Topology optimization design of loaded structure is conducted using minimal compliance as the optimization objective. The optimal distribution of material in the design domain is finally obtained. Comparing to other algorithms, the local rule has proved to be computationally efficient to solve structural topology optimization problems. The resulting optimal structures are free of numerical instabilities such as the checkerboard patterns and mesh dependency.

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