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摘要
A three-dimensional (3D) acceleration sensor, which monitors the motion devices vibration in 3D, is an important sensing device. In this study, the strain of elastomer is considered to be the measurable object, and a novel 3D acceleration sensor consisted of. an elastomer, a mass block, a shell and a cover is designed. Based on the mechanical analysis of the sensor, conflicts are found in the elastomer design, such as the contradiction between the increase of the elastomer stiffness and the sensitivity decline. Therefore, the TRIZ theory is introduced to solve the contradiction existed in the sensor design. The conflict parameters are described by TRIZ standard parameters, the recommended invention principles are found in the contradictions matrix, these principles are compared, so the final solution is obtain, a thinning joint structure is designed to overcome the contradictions. For the sensor strength, buckling and modal analysis, the results show the working condition of the sensor is reliable. And for the sensor characteristic analysis, the calculation method of sensitivity and elastomer stiffness is given.
- 出版日期2013-12
- 单位广州大学
