Optimization Design for Auto-body Beam Section Based on Complex Engineering Constraints

Hou, Wenbin

doi:10.3901/jme.2014.18.127

Cited by 3 publications

(3 citation statements)

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“…Wang et al [11] applied the sequential quadratic programming method to optimize the dimensions of the BIW main section to achieve weight reduction and stiffness improvement of the BIW. Hou et al [12] coupled the beam section shape optimization problem with the NSGA-II algorithm-based section material and thickness optimization problem to achieve multi-objective optimization of body performance, cost, and weight. Zhang et al [13] used a multi-objective intelligent adaptive optimization algorithm (MIAOA) to iterate node coordinates for weight reduction, stiffness and mode optimization on the basis of parametric modeling of section nodes.…”

Section: Introductionmentioning

confidence: 99%

Lightweight Beam Structure Topology Design Solution for Steel and Aluminum Hybrid Body

Xing,

Liu

2023

Advances in Transdisciplinary Engineering

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To solve the problems of low bending and torsional stiffness and high weight of the all-steel body-in-white (BIW), an aluminum (Al) alloy profile with optimized cross-section is used to replace the original sheet metal threshold beam. Firstly, considering the feasibility of extrusion process, the Al alloy profile cross-section is designed based on the original threshold beam cross-section. Then, we extracted the equivalent load acting on the center of mass of the threshold beam section during the calculation of the bending and torsional stiffness of the BIW, and carried out the planar topology optimization with the design boundary conditions to minimize the cross-sectional flexibility, resulting in an Al alloy section with superior performance. The optimization results show that the bending stiffness and torsional stiffness of the BIW are improved by 2.1% and 3.4%, respectively, after replacing the Al alloy foundation beam with internal reinforcing ribs. Additionally, there is a 5.0% enhancement in first-order bending mode and a 2.7% improvement in first-order torsional mode, accompanied by a slight weight reduction of 0.1%.

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Section: Introductionmentioning

confidence: 99%

Lightweight Beam Structure Topology Design Solution for Steel and Aluminum Hybrid Body

Xing,

Liu

2023

Advances in Transdisciplinary Engineering

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“…Cho et al [ 13 ] used the size optimization method to optimize the design of the rail transit car body and achieved a lightweight effect by reducing the body weight by 29%. Hou et al [ 14 ] optimized the multiobjective design of structural performance, cost, and mass and reduced the mass of the components while increasing the structural stiffness. Emirci and Yildiz [ 15 ] compared and analyzed the anticollision and energy-absorbing characteristics of the body energy-absorbing box using aluminium alloy and high-strength steel.…”

Section: Introductionmentioning

confidence: 99%

Multiobjective Fusion Decision Model for Key Technologies of Aircraft Intelligent Lightweight

Zhou

Dong

Lang

et al. 2022

Computational Intelligence and Neuroscience

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As a tool for aviation exploration, aircraft plays a pivotal role in the aerospace field. The aircraft’s lightweight can ensure that the aircraft can carry more loads, so it is of great significance to the research on the key technologies of aircraft lightweight. This paper organizes the intelligent technology system from the multiobjective fusion technology relationships and considers the complex changes between technology units. A technology group model for the intelligent technology system of spacecraft welding is formed to provide a decision-making basis for the realization of batch, stable, and efficient intelligent and lightweight manufacturing of spacecraft. We expand the technology development research from single technology research to technology system research. We research and build a three-dimensional perspective intelligent technology system based on technology unit, technology system, and technology group. It reveals the internal relationship description of technological development and expands and perfects the current research theory of technological development.

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“…In general, the results of continuous size optimization need to be rounded according to the available size parameters, so the results of discrete size optimization are more in line with the actual needs of engineering [17]. At the same time, there are more optimization variables for discrete optimization, such as cross section [18,19] and material [20][21][22]. In addition, the variables in the assignment problem and scheduling problem are also discrete, so discrete optimization is also applied to solve these problems.…”

Section: Introductionmentioning

confidence: 99%

On the Lightweight Truss Structure for the Trash Can-Handling Robot

Chen

Yan

et al. 2021

Actuators

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With the rapid development of cities, the automated and intelligent garbage transportation has become an important direction for technological innovation of sanitation vehicles. In this paper, a vehicle-mounted trash can-handling robot is proposed. In order to reduce the cost of the robot and increase the loading capacity of the intelligent sanitation vehicles, a lightweight design method is proposed for the truss structure of the robot. Firstly, the parameters of the robot that are related to the load are optimized by multi-objective parameter optimization based on particle swarm optimization. Then, the material distribution of the truss structure is optimized by topology optimization under multiple load cases. Finally, the thickness of the truss structure parts is optimized by discrete optimization under multiple load cases. The optimization results show that the mass of the truss structure is reduced by 8.72%, the inherent frequency is increased by 61.08%, and the maximum stress is reduced by 10.98%. The optimization results achieve the goal of performance optimization of the intelligent sanitation vehicle, and prove the feasibility of the proposed lightweight design method.

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Optimization Design for Auto-body Beam Section Based on Complex Engineering Constraints

Cited by 3 publications

References 0 publications

Lightweight Beam Structure Topology Design Solution for Steel and Aluminum Hybrid Body

Lightweight Beam Structure Topology Design Solution for Steel and Aluminum Hybrid Body

Multiobjective Fusion Decision Model for Key Technologies of Aircraft Intelligent Lightweight

On the Lightweight Truss Structure for the Trash Can-Handling Robot

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