Structural Optimization Design and Analysis of Impeller Based on Comprehensive Performance

2011 ◽  
Vol 121-126 ◽  
pp. 1641-1645
Author(s):  
Xiao Mei You ◽  
Lei Meng ◽  
Xue Jun Wang ◽  
Ji Shuang Dai ◽  
Bang Chun Wen
Keyword(s):  
Structural Optimization ◽  
Design Theory ◽  
Optimization Design ◽  
Large Scale ◽  
Integrated Design ◽  
Inertial Force ◽  
The Finite Element Method ◽  
Innovative Design ◽  
Comprehensive Performance ◽  
Assembly Structure

Based on the product integrated design theory, the key part of large-scale centrifugal compressor — the impeller is researched. Structural optimization design and analysis on the conventional impeller is completed by the finite element method, and then the strength characteristic and the distortion tendency of the impeller under the action of the inertial force are obtained, the stress distribution of the impeller assembly structure after reaching stability in the assembly process is also obtained. The correctness and effectiveness of structural optimization design of the impeller are verified by the analysis results, and the comprehensive performance of the impeller has been greatly improved. The results above are also laid the foundation for optimization design and innovative design for other mechanical key components.

Equipment Development of Crankshaft Barrel Finishing on Integrated Design Theory

2012 ◽  
Vol 522 ◽  
pp. 264-267 ◽  
Author(s):  
Wen Hui Li ◽  
Sheng Qiang Yang ◽  
Xiu Hong Li
Keyword(s):  
Design Theory ◽  
Optimization Design ◽  
Design Method ◽  
Integrated Design ◽  
Function Optimization ◽  
Equipment Development ◽  
Barrel Finishing

ntegrated design theory and method oriented to the product generalized quality is one design method facing to the full-function and whole performance. Design theory of barrel finishing equipment is put forward by the design of crankshaft barrel finishing equipment, function optimization and visual optimization design are mainly discussed, which can provide the design thought for developing new barrel finishing equipment.

scholarly journals Exploration of Digital Twin Design Mechanism of the Deep in Situ Rock Insulation Coring Device

Geofluids ◽  
2020 ◽  
Vol 2020 ◽  
pp. 1-12
Author(s):  
Bo Yu ◽  
Heping Xie ◽  
Ling Chen ◽  
Wu Zhao ◽  
Zhiqiang He
Keyword(s):  
Product Design ◽  
Design Process ◽  
Design Theory ◽  
Large Scale ◽  
Design Method ◽  
High Fidelity ◽  
Time Data ◽  
Innovative Design ◽  
Digital Twin

With the development of the resource exploration and environmental science drilling, strict and scientific requirements are put forward for the samples taken from drilling. It is significant to keep the original appearance of the core and obtain the in situ core for the analysis of deep geological fluid and the exploration of the law of geological disasters caused by large-scale geological exploitation. To achieve the high-fidelity in situ core of deep rock, the development of the corresponding deep in situ fidelity coring device should involve the insulation coring device. The development of deep in situ fidelity coring device is a typical sophisticated product design. There are many problems in the design process, such as multimodules, multidisciplinary, crossdomain, and high coupling, which makes it more difficult for users to participate in product design and understand the product design intention. Digital twin technology, such as time data collection, accelerated iterative optimization, and high-fidelity rendering, provides users with an immersive experience and deepens their understanding of the product design intention. The exploration of the novel design model combined digital twin technology with innovative design theory. Digital twin innovative design of the deep in situ insulation coring device is based on the innovative design method, which built a digital connection between the pre-research test platform and the corresponding simulation models. This digital twin to help users participate in product design and understand the product design process. Finally, the TOPSIS evaluation model was used to calculate the user’s score on the design scheme, which increased by 27.64%, which improves the overall efficiency of product design. This paper provides a practical design method and technical means for the design of the deep in situ insulation coring device based on the geological mechanism and control theory of thermal insulation core.

scholarly journals Structural Optimization Design of Large Wind Turbine Blade considering Aeroelastic Effect

2017 ◽  
Vol 2017 ◽  
pp. 1-7
Author(s):  
Yuqiao Zheng ◽  
Yongyong Cao ◽  
Chengcheng Zhang ◽  
Zhe He
Keyword(s):  
Structural Optimization ◽  
Wind Turbine ◽  
Turbine Blade ◽  
Optimization Design ◽  
Large Scale ◽  
Wind Turbine Blade ◽  
Mathematical Simulations ◽  
Blade Tip ◽  
And Performance ◽  
Large Wind

This paper presents a structural optimization design of the realistic large scale wind turbine blade. The mathematical simulations have been compared with experimental data found in the literature. All complicated loads were applied on the blade when it was working, which impacts directly on mixed vibration of the wind rotor, tower, and other components, and this vibration can dramatically affect the service life and performance of wind turbine. The optimized mathematical model of the blade was established in the interaction between aerodynamic and structural conditions. The modal results show that the first six modes are flapwise dominant. Meanwhile, the mechanism relationship was investigated between the blade tip deformation and the load distribution. Finally, resonance cannot occur in the optimized blade, as compared to the natural frequency of the blade. It verified that the optimized model is more appropriate to describe the structure. Additionally, it provided a reference for the structural design of a large wind turbine blade.

Large scale structural optimization of trimetallic Cu–Au–Pt clusters up to 147 atoms

2017 ◽  
Vol 686 ◽  
pp. 103-110 ◽  
Author(s):  
Genhua Wu ◽  
Yan Sun ◽  
Xia Wu ◽  
Run Chen ◽  
Yan Wang
Keyword(s):  
Structural Optimization ◽  
Large Scale

scholarly journals Structural Optimization Considering Flexibility. (Integrated Design Method for Compliant Mechanisms).

1998 ◽  
Vol 41 (3) ◽  
pp. 476-484 ◽  
Author(s):  
Shinji NISHIWAKI ◽  
MIN Seungjae ◽  
Susumu EJIMA ◽  
Noboru KIKUCHI
Keyword(s):  
Structural Optimization ◽  
Compliant Mechanisms ◽  
Design Method ◽  
Integrated Design

Structural Optimization Design of an Aircraft Metal-Composite Wing

2013 ◽  
Vol 341-342 ◽  
pp. 519-523
Author(s):  
Ya Hui Zhang ◽  
Ji Hong Zhu ◽  
Jun Shuo Li ◽  
Wei Hong Zhang
Keyword(s):  
Structural Optimization ◽  
Optimization Design ◽  
Optimization Method ◽  
Design Solution ◽  
Metal Composite ◽  
Concept Design ◽  
Obvious Effect ◽  
Reinforced Composite ◽  
Three Phase ◽  
Composite Wing

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.

Structural optimization design for antenna bracket manufactured by selective laser melting

2018 ◽  
Vol 24 (3) ◽  
pp. 539-547 ◽  
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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