The term tensegrity, derived trom tensional integrity, refers to a ccrtain class of structural systems composed of bars and strings. Through adequate pre-stressing of their string members, tensegrity structures generally become mechanically stable. Traditional approaches for modeling their behavior assume that (i)bars are perfectly rigid. (ii)cables are linear elastic, and (iii) bars experience pure compression and strings pure tension. In addition, a common design constraint is to assume that the structure would fail whenever any ot its bars reaches the corresponding Euler buckling load. In reality, these assumptions tend to break down in the presence of dynamic events. In the first part of this talk. we will introduce a physics-based reduced-order model to study aspects related to the dynamic and nonlinear response of tensegrity bascd planetary landers. We will then adopt our model to show how, under dynamic events, buckling of individual members of a tensegrity structure does not necessarily imply structural failure. thus signilicantly expanding the design space for such vehicles. In the second part of this talk, we will show how lessons learned from our tensegrity planetary lander can be translated into to the development novel metamaterials. We will introduce the first known class-two 3D tensegrity metamaterial. and show that this new topology exhibits unprecedented static and dynamic mechanical properties.
先后受邀在国外重要学术会议上及国外大学做邀请报告十余次，担任Scientific Reports杂志编委及Scientific Reports、Applied Physics Letters、Journal of Acoustical Society of America等国内外高水平学术期刊审稿人。 2016年作为第二完成人获得教育部自然科学奖一等奖。 2008年获南京大学优秀博士论文奖、中国声学学会青年学术会议优秀论文奖，2009年评为南京大学骨干教师，2010年评为南京大学第三批中青年学术带头人，2012年入选首批国家优秀青年科学基金计划、获教育部新世纪优秀人才称号，2013年评为南京大学人工微结构与量子调控协同创新中心唐仲英特聘教授，2014年评为南京大学第二批登峰人才（B层次）。