Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
737899 | Sensors and Actuators A: Physical | 2008 | 8 Pages |
Abstract
Large mechanical strain is desirable for many devices such as cantilever-based accelerometers and vibration energy harvesting devices. Air-spaced cantilevers are proposed to significantly increase the mechanical strain experienced by the cantilever beams. In this paper, an analytical model for the bending of symmetric air-spaced cantilevers is established by decomposing the cantilever deformation into pure bending and S-shape bending. This model was further verified by a discrete component model. A criterion to determine the dominant bending mode is presented. Finite element simulations and experiments were also conducted and showed a good agreement with the analytical model.
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Authors
Qinglong Zheng, Zhuo Wang, Yong Xu,