Structural Optimization Design of Heavy Protective Current Transformers

The problem of metal-composite wing structural optimization is discussed and a strategy is presented. Topology optimization method is applied to provide load transferring path of structure for concept design. Size, shape and other optimization method are used to provide detailed design for individual components. A three-phase optimization method is discussed for fiber reinforced composite laminate skin. Optimal parameters include ply angle, percentage, thickness, layer shape and sequence. The design of laminate for ease of manufacture is based on a set of manufacturing constraints. This paper deals with a total optimal design solution for aileron structure of an aircraft. The result satisfies all the requirements of strength and stability, and has obvious effect of weight loss.

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Structural optimization design for antenna bracket manufactured by selective laser melting

Rapid Prototyping Journal ◽

10.1108/rpj-05-2017-0084 ◽

2018 ◽

Vol 24 (3) ◽

pp. 539-547 ◽

Cited By ~ 3

Author(s):

Zefeng Xiao ◽

Yongqiang Yang ◽

Di Wang ◽

Changhui Song ◽

Yuchao Bai

Keyword(s):

Structural Optimization ◽

Modal Analysis ◽

Selective Laser Melting ◽

Optimization Model ◽

Optimization Design ◽

Analysis Data ◽

Laser Melting ◽

Design Rules ◽

Content Type ◽

Process Characteristics

Purpose This paper aims to summarize design rules based on the process characteristics of selective laser melting (SLM) and structural optimization and apply the design rules in the lightweight design of an aluminum alloy antenna bracket. The design goal is to reduce 30 per cent of the weight while maintaining the stress levels in the original part. Design/methodology/approach To reduce weight as much as possible, the titanium alloy with higher specific strength was selected during the process of optimization. The material distribution of the bracket was improved by the topology optimization design. The redesign for SLM was used to obtain an optimization model, which was more suitable for SLM. The component performance was improved by shape optimization. The modal analysis data of the structural optimization model were compared with those of the stochastic lightweight model to verify the structural optimization model. The scanning data were compared with those of the original model to verify whether the model was suitable for SLM. Findings Structural optimization design for antenna bracket realized the mass decrease of 30.43 per cent and the fundamental frequency increase of 50.18 per cent. The modal analysis data of the stochastic lightweight model and the structural optimization model indicated that the optimization performance of structural optimization method was better than that of the stochastic lightweight method. The comparison results between the scanning data of the forming part and the original data confirmed that the structural optimization design for SLM lightweight component could achieve the desired forming accuracy. Originality/value This paper summarizes geometric constraints in SLM and derives design rules of structural optimization based on the process characteristics of SLM. SLM design rules make structural optimization design more reasonable. The combination of structural optimization design and SLM can improve the performance of lightweight antenna bracket significantly.

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Discrete Structural Optimization: Design Problems and Exact Solution Methods

Discrete Structural Optimization ◽

10.1007/978-3-7091-2754-4_1 ◽

1997 ◽

pp. 1-53

Author(s):

W. Gutkowski

Keyword(s):

Exact Solution ◽

Structural Optimization ◽

Optimization Design ◽

Design Problems ◽

Solution Methods

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Structural optimization design of large-aperture mirror for space remote sensing camera

Infrared and Laser Engineering ◽

10.3788/irla202049.0214002 ◽

2020 ◽

Vol 49 (2) ◽

pp. 214002

Author(s):

张超杰 Zhang Chaojie ◽

习兴华 Xi Xinghua ◽

王永宪 Wang Yongxian ◽

朱俊青 Zhu Junqing ◽

关英俊 Guan Yingjun

Keyword(s):

Remote Sensing ◽

Structural Optimization ◽

Optimization Design ◽

Large Aperture

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Size and Pretension Optimization Design of Deployable Cable-Frame Antenna Structures

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.777.101 ◽

2015 ◽

Vol 777 ◽

pp. 101-105

Author(s):

Ya Li Zong ◽

Hong Jun Cao ◽

Ya Jing Ma

Keyword(s):

Structural Optimization ◽

Optimization Model ◽

Optimization Design ◽

Optimization Problem ◽

Antenna Structure ◽

Cable Network ◽

Surface Precision ◽

Supporting Frame ◽

Member Size ◽

Structural Optimization Problem

In this paper, the structural optimization problem of a deployable cable-frame antenna consisting of a cable network and a supporting frame is discussed in detail. Firstly, the initial equilibrium problem of the cable-frame antenna structure is discussed with emphasis on the realization convenience. An optimization model is proposed to get a set of uniformly distributed cable pretensions whilst satisfying the surface precision requirement. Secondly, the optimization of the member size and cable tensions are integrated in one optimization model in which both folded and deployed status are considered. Finally, a 10-meter antenna is optimized with good results which indicates that the proposed method is feasible and effective.

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Analysis of Shape Control Factors for the Overall Optimization Design of High-Rise Frame Shear Wall Structure

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.423-426.1226 ◽

2013 ◽

Vol 423-426 ◽

pp. 1226-1229

Author(s):

Ting Yu Mei ◽

Lang Wu

Keyword(s):

Structural Optimization ◽

Shape Control ◽

Optimization Design ◽

Shear Wall ◽

Wall Structure ◽

Width Ratio ◽

High Rise ◽

Control Factors ◽

Length Width ◽

Building Plane

From the basic theory of structural optimization design and shape control factors, the characteristics and control requirements for control factors of high-rise frame shear wall structure optimization have been introduced in this paper. The research and analysis showed that: the structure system and building height, length-width ratio of building plane, and the vertical height-width ratio play an important role on structural optimization.

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