介电高弹体动力学特性不确定分析与主动控制方法研究
结题报告
批准号:
12002014
项目类别:
青年科学基金项目
资助金额:
24.0 万元
负责人:
李云龙
依托单位:
学科分类:
多场耦合与智能结构力学
结题年份:
2023
批准年份:
2020
项目状态:
已结题
项目参与者:
李云龙
国基评审专家1V1指导 中标率高出同行96.8%
结合最新热点,提供专业选题建议
深度指导申报书撰写,确保创新可行
指导项目中标800+,快速提高中标率
客服二维码
微信扫码咨询
中文摘要
介电高弹体作为一种典型智能多功能软材料,在航空航天和软体机器人等领域都显示出了巨大的应用潜力。准确预测介电高弹体的动力学响应并对其进行有效控制是实现介电弹性材料广泛应用的前提。然而,由于模型简化不确定性以及材料参数不确定性的影响,现有介电高弹体动力学分析与控制方法无法满足工程可靠性要求,合理表征动力学特性的本构模型、动力学响应不确定性度量、闭环控制系统可靠度的置信评估等瓶颈问题有待解决。本项目将开展介电弹性材料可压缩本构模型构建、非线性不确定动力学响应预测及主动置信可靠控制方法研究。拟提出一种充分表征介电高弹体动力学特性的可压缩粘-超弹性本构,建立考虑时变特性的非线性不确定动力学响应预测和置信可靠度分析方法,发展介电高弹体主动置信可靠控制理论。丰富和完善现有介电高弹体动力学特性分析和主动控制方法,为我国航空航天领域智能软材料的应用以及微小型仿生飞行器和软体机器人的发展提供必要的理论支持。
英文摘要
As a kind of typical intelligent multifunctional soft material, dielectric elastomers have shown great potential in the fields of aerospace and soft robot. Accurately predicting and effectively controlling dynamic responses of dielectric elastomers are the important prerequisites for the engineering application of dielectric elastomers. However, due to the simplification of the model and the influence of uncertainty, the current dynamic analysis and control methods of dielectric elastic materials cannot meet the reliability requirements of engineering design. Bottlenecks such as the construction of a constitutive model reflecting dynamic characteristics, the measurement and evaluation of uncertainties in dynamic response, and the reliability evaluation of closed-loop control systems need to be resolved. This project will study the constitutive models, nonlinear uncertain dynamics response prediction methods and confidence reliable active control methods for dielectric elastomers. A compressible visco-hyperelastic constitutive model that can fully characterize the dynamic properties of dielectric elastomers will be proposed, nonlinear dynamic response prediction and reliability analysis methods with considering the time-dependent properties and uncertainties will be established, and an active confidence reliable control theory for dielectric elastomers will be developed. The achievements of this project will enrich and improve the existing methods of dynamics analysis and active control for dielectric elastomers, and they will provide necessary theoretical supports for the applications of smart soft materials in the field of aerospace and the developments of micro-miniature bionic aircrafts and soft robots.
期刊论文列表
专著列表
科研奖励列表
会议论文列表
专利列表
DOI:10.1007/s00158-022-03474-9
发表时间:2023-01
期刊:Structural and Multidisciplinary Optimization
影响因子:3.9
作者:Peng Wu;Yunlong Li
通讯作者:Peng Wu;Yunlong Li
DOI:10.1142/s0219876222500384
发表时间:2022
期刊:International Journal of Computational Methods
影响因子:1.7
作者:Peng Wu;Wenshuo Hu;Yunlong Li;Zhenchen Liu;Beibei Liu
通讯作者:Beibei Liu
DOI:10.1016/j.tafmec.2021.102922
发表时间:2021-04
期刊:Theoretical and Applied Fracture Mechanics
影响因子:5.3
作者:Yunlong Li;Peng Wu;H. Mazaheri;Menghui Xu
通讯作者:Yunlong Li;Peng Wu;H. Mazaheri;Menghui Xu
DOI:10.1142/s0219876222500189
发表时间:2022
期刊:INTERNATIONAL JOURNAL OF COMPUTATIONAL METHODS
影响因子:--
作者:Zheng Niu;Yunlong Li
通讯作者:Yunlong Li
DOI:10.1016/j.ast.2023.108774
发表时间:2023-11
期刊:Aerospace Science and Technology
影响因子:5.6
作者:Zheng Niu;Chuliang Yan;Yunlong Li
通讯作者:Zheng Niu;Chuliang Yan;Yunlong Li
国内基金
海外基金