Mechanical Analysis of a Graphene-Based Mass Sensor

• Main Authors: Shu-Yu Lin, 林書毓
• Other Authors: Win-Jin Chang
• Format: Others
• Language: zh-TW
• Published: 2013
• Online Access: http://ndltd.ncl.edu.tw/handle/07790535266188648811

碩士 === 崑山科技大學 === 機械工程研究所 === 101 === The vibration frequency and sensitivity of a single-layer graphene -based mass sensor are studied using ANSYS finite element software package. The content of the article includes： the armchair and zigzag nanostructures, and the clamped-clamped, clamped-free, simply supported -free, simply supported, and cantilever sensors. Results show that the vibration frequency becomes high when the attached mass of the graphene-based mass sensor is closed to the fixed end. The vibration frequency of the clamped-clamped or simply supported sensor is higher than that of the cantilever sensor, and the sensitivity of the clamped -clamped sensor is higher than that of simply supported sensor when the same length and the same attached mass and location of the sensor are considered. The sensitivity of the sensor decreases with increasing attached mass. The sensitivity also decreases when the attached mass is closed the fixed end. In addition, the sensitivity of the clamped-clamped or simply supported sensor is higher than that of the simply supported-free or cantilever sensor, and the sensitivity of the clamped-clamped sensor is higher than that of simply supported sensor when the same attached mass and location of the sensor are taken into account.