磁控表面粘附性能的研究型实验教学设计与实践  

Research-oriented experimental teaching design and practice based on the adhesion properties of magnetically controlled surfaces

作　　者：李静[1] 隋同航 彭宪宇 侯陆涛 秦浩 LI Jing;SUI Tonghang;PENG Xianyu;HOU Lutao;QIN Hao(College of Mechanical and Electrical Engineering,China University of Petroleum(East China),Qingdao 266580,China;Shandong Non-Metallic Materials Institute,Jinan 250000,China)

机构地区：[1]中国石油大学(华东)机电工程学院,山东青岛266580 [2]山东非金属材料研究所,山东济南250000

出　　处：《实验技术与管理》2024年第10期191-197,共7页Experimental Technology and Management

基　　金：国家自然科学基金资助项目(51975586);中央高校基本科研业务费专项基金资助(24CX02017A);海洋物探及勘探开发装备国家工程研究中心开放基金资助;山东省研究生教育教学改革研究项目(SDYJG21067)。

摘　　要：该文将磁控表面粘附性能研究作为探究型创新实验教学项目融入设计力学课程。针对湿环境下粘附难以调控的问题,设计了一种由磁场控制、制备简单、可调节粘附力的智能表面,并针对此表面进行了湿粘附力实验装置设计和力学分析。结果表明,对该表面通过施加不同的磁场强度、方向、载荷,会使表面微结构发生变化,进而影响润湿状态,使得粘附过程的接触角和接触半径发生改变,最终使表面分别处于低粘附态和高粘附态。该实验通过对磁控表面的设计与分析,有利于学生进一步了解智能粘附概念,有利于提高创新实践能力。[Objective]To effectively improve students’learning of mechanical theory and comprehensive innovation ability,the structural design and mechanical performance analysis of intelligent materials is an important part of the course of design mechanics.The intelligent adhesive surface is the key component of wearable design and underwater robot adsorption mechanisms.Research on the adhesion properties of magnetically controlled surfaces is integrated into the design mechanics course as an exploratory,innovative,experimental teaching project.Adhesion behavior,as a special function or survival ability acquired by organisms in the long-term evolution process,usually has dynamic and adaptive characteristics to adapt to the complex and changing living environment and can realize the rapid transformation of adhesion and motion state through real-time sensing contact.However,the wet adhesive contact interface is a more complex multiscale contact problem,which involves many factors,such as liquid motion,solid surface microstructure deformation,and liquid–solid interface interaction.Thus,the development of intelligent wet adhesive surfaces in the engineering field is difficult,and the underlying mechanisms of the liquid–solid regulations at the wet adhesion interface have not been sufficiently revealed.Adhesion behavior,as a special function or survival ability of organisms,usually has dynamic and adaptive characteristics to adapt to the complex and changing living environment and can realize the rapid transformation of adhesion and motion state.[Methods]To address the challenge of controlling adhesion in wet environments,we designed a magnetic control wet adhesive surface inspired by the precise microstructures and unique movement of a gecko's toe pad.This surface consists of a microcolumn array made from polydimethylsiloxane and carbonyl iron particles.Then,a self-made adhesion tester was designed,and adhesion measurements were conducted.The coupling effect of preload and external stimuli on the wet adhesion performanc

关 键 词：磁控表面 粘附力 设计力学 接触角 实验教学 

分 类 号：TB381[一般工业技术—材料科学与工程]