Nonlinear Modeling and Kineto-Elasto-Dynamic Analysis of a Piezo-Actuator
This paper presents a nonlinear modeling and its kineto-elasto-dynamic analysis of a piezo-actuator, which is a simplified model of a so-called pseudo-wheel designed for an attitude stabilization of a miniature spacecraft. The proposed model includes the coupled effect between the flexible
deformation and the rigid body motion of the piezo-actuator, and it can be applied for both the finite element method and the assumed mode method. Besides, the model includes the longitudinal effect which is caused by a tensile load due to a rigid body rotation. This effect is significant
to predict the vibrations of the piezo-actuator. This model is not only for the piezo-actuator but also for a slewing beam with a prescribed large rigid body rotation. To validate the proposed model, it is simplified as a static model to compare with some from literatures, and the results
show that the proposed model is more accurate. Besides, it is concluded that the finite element method employing quintic shape functions can provide a more accurate simulation of the bimorph deformation.
Keywords: ASSUMED MODE METHOD; FINITE ELEMENT METHOD; KINETO-ELASTO-DYNAMICS; PIEZO-ACTUATOR
Document Type: Research Article
Publication date: 01 March 2013
- Journal of Computational and Theoretical Nanoscience is an international peer-reviewed journal with a wide-ranging coverage, consolidates research activities in all aspects of computational and theoretical nanoscience into a single reference source. This journal offers scientists and engineers peer-reviewed research papers in all aspects of computational and theoretical nanoscience and nanotechnology in chemistry, physics, materials science, engineering and biology to publish original full papers and timely state-of-the-art reviews and short communications encompassing the fundamental and applied research.
- Editorial Board
- Information for Authors
- Submit a Paper
- Subscribe to this Title
- Terms & Conditions
- Ingenta Connect is not responsible for the content or availability of external websites
- Access Key
- Free content
- Partial Free content
- New content
- Open access content
- Partial Open access content
- Subscribed content
- Partial Subscribed content
- Free trial content