Synthesis and solution region optimization method of shape-changing mechanisms

QIAN Weixiang; JIN Zhichao; YANG Yinshuo; QU Zhuocheng; GUO Rongzhuo

doi:10.16578/j.issn.1004.2539.2025.09.003

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Synthesis and solution region optimization method of shape-changing mechanisms

Theory·Research | 更新时间：2025-09-20

- Synthesis and solution region optimization method of shape-changing mechanisms
- Journal of Mechanical Transmission Vol. 49, Issue 9, Pages: 19-25(2025)
- 作者机构：
  
  西安科技大学机械工程学院，西安 710054
- 作者简介：
- 基金信息：
- DOI：10.16578/j.issn.1004.2539.2025.09.003
  CLC： TH112.1
- Received：14 May 2024，
  
  Published：15 September 2025
- 稿件说明：
移动端阅览
钱卫香，靳智超，杨银烁，等. 形状可变机构综合及解域寻优方法［J］. 机械传动，2025，49（9）：19-25.

QIAN Weixiang，JIN Zhichao，YANG Yinshuo，et al. Synthesis and solution region optimization method of shape-changing mechanisms［J］. Journal of Mechanical Transmission，2025，49（9）：19-25.
钱卫香，靳智超，杨银烁，等. 形状可变机构综合及解域寻优方法［J］. 机械传动，2025，49（9）：19-25. DOI： 10.16578/j.issn.1004.2539.2025.09.003.

QIAN Weixiang，JIN Zhichao，YANG Yinshuo，et al. Synthesis and solution region optimization method of shape-changing mechanisms［J］. Journal of Mechanical Transmission，2025，49（9）：19-25. DOI： 10.16578/j.issn.1004.2539.2025.09.003.

摘要

目的

为了有效地设计出形状可变机构并提高设计效率，对该类机构的综合设计方法进行了研究，提出一种适用于该类机构的解域寻优方法。

方法

首先，针对不同变形任务，确定了3种类型的刚体链；为了降低机构变形控制难度，对刚体链添加二副杆，得到单自由度形状可变机构；基于铰链二杆组运动生成理论，建立了形状可变机构解析综合模型。该模型理论上可以得到无穷多能够完成指定变形任务的机构。然后，对机构运动可行性进行了分析，提出形状可变机构缺陷识别方法并分析了该机构的传动性能。最后，结合解域寻优方法，在众多设计方案中快速筛选出满足设计要求的最优机构，缩短了该机构的设计周期。根据所提方法设计了一个变形机翼，对最优机构进行了运动仿真。

结果

仿真结果表明，该机构能够完成指定变形任务，验证了该方法的可行性和有效性。

Abstract

Objective

To effectively design shape-changing mechanisms and improve design efficiency

the comprehensive design method for such mechanisms was studied

and a solution region optimization method suitable for these mechanisms was proposed.

Methods

Firstly

for different deformation tasks

three types of rigid-body chains were determined. To reduce the difficulty of controlling mechanism deformation

two-link bars were added to the rigid-body chains to obtain single-degree-of-freedom shape-changing mechanisms. Based on the motion generation theory of hinged two-bar groups

an analytical synthesis model of shape-changing mechanisms was established

which could theoretically yield an infinite number of mechanisms capable of completing specified deformation tasks. Then

the motion feasibility of the mechanisms was analyzed

a defect identification method for shape-changing mechanisms was proposed

and the transmission performance of these mechanisms was evaluated. Finally

combined with the solution region optimization method

the optimal mechanism meeting design requirements was quickly screened out from numerous design schemes

thereby shortening the design cycle of such mechanisms. A morphing wing was designed according to the proposed method

and motion simulation was performed on the optimal mechanism.

Results

The simulation results show that the mechanism can complete the specified deformation tasks

verifying the feasibility and effectiveness of the proposed method.

关键词

Keywords

references

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