caa a22 4500 46324415X CHVBK 20180405153321.0 cr unu---uuuuu 170326e20070601xx s 000 0 eng 10.1007/s00158-006-0052-8 doi (NATIONALLICENCE)springer-10.1007/s00158-006-0052-8 Demonstration of optimizing piezoelectric polarization in the design of a flextensional actuator [Elektronische Daten] [J. Gibert, E. Austin] Much effort has gone into amplifying the displacements of actuators built around piezoelectric materials (PZTs). Some researchers have used topology optimization to design compliant mechanisms that best magnify either the geometric or mechanical advantage of piezoelectric wafers or "stack” actuators. PZTs are generally poled through the "thin” direction, so actuation by an electric field in that direction only induces eigenstrains normal to the free edges. Some researchers have shown advantages of "shear mode” actuation, and material scientists have demonstrated the ability to pole a PZT in an arbitrary direction. This work attempts to justify the inclusion of the PZT polarization vector as a design variable in the design of a flextensional actuator. We present two examples based on the "cymbal” actuator: one using a simplified model to justify off-angle polarization and another using the polarization vector as a design variable to optimize the topology of a compliant mechanism. Springer-Verlag Berlin Heidelberg, 2006 Piezoelectric nationallicence PZT nationallicence Polarization nationallicence Compliant mechanism nationallicence Actuator nationallicence Optimization nationallicence Gibert J. Department of Mechanical Engineering, Clemson University, 29634-0921, Clemson, SC, USA aut Austin E. Department of Mechanical Engineering, Clemson University, 29634-0921, Clemson, SC, USA aut Structural and Multidisciplinary Optimization Springer-Verlag 33/6(2007-06-01), 471-480 1615-147X 33:6<471 2007 33 158 https://doi.org/10.1007/s00158-006-0052-8 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s00158-006-0052-8 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Gibert J. Department of Mechanical Engineering, Clemson University, 29634-0921, Clemson, SC, USA aut NATIONALLICENCE 700 1- Austin E. Department of Mechanical Engineering, Clemson University, 29634-0921, Clemson, SC, USA aut NATIONALLICENCE 773 0- Structural and Multidisciplinary Optimization Springer-Verlag 33/6(2007-06-01), 471-480 1615-147X 33:6<471 2007 33 158 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer