Piezoelectric d_(15) shear response-based torsion actuation mechanism:an experimental benchmark and its 3D finite element simulation
压电的 d15 砍基于反应的扭转使活动机制: 一个试验性的基准和它的 3D 有限元素模拟作者机构：Institute of Technical MechanicsJohannes Kepler University of LinzLinzAustria Institut Supérieur de Mécanique de Paris(Supméca)ParisFrance
出 版 物：《International Journal of Smart and Nano Materials》 (国际智能和纳米材料杂志（英文）)
年 卷 期：2010年第1卷第3期
页 面：224-235页
核心收录：
学科分类：08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学]
基 金：the support of the Polymer Competence Center Leoben(Austria)for the support of the present work
主 题：torsion actuation shear-mode piezoceramic benchmark experiment simulation
摘 要：An experimental benchmark is proposed for piezoelectric,direct-torsion actuation using mono-morph piezoceramic d_(15)shear *** is reached by designing and assembling an adaptive plate having two identical composite faces sandwiching a core made of connected six oppositely polarized(OP)piezoceramic d15 shear patches along the *** electronic speckle pattern interferometry system was used to measure the static tip deflection of the adaptive sandwich composite plate that was mounted in a cantilever configuration and actuated in torsion by progressively applied voltages on the piezoceramic shear core electroded major ***,the effective rate of twist was post-processed and proposed as an evaluation criterion for smart composites under piezoelectric torsion *** verification of the experimental results,the proposed experimental benchmark was simulated using three-dimensional piezoelectric finite elements(FE)within ABAQUS®commercial *** comparison of the obtained experimental and simulation results showed reasonable agreement,but the slight nonlinear experimental response was not confirmed by the linear FE *** experimentally proved torsion actuation mechanism,produced by OP piezoceramic d15 shear patches,can be applied actively to prevent torsion in many applications,such as in wind turbines,helicopter blades,robot arms,flexible space structures,etc.
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