Thermoelastic damping in microbeam resonators with a proof mass
Predicting thermoelastic damping is crucial for the design of high Q MEMS devices.In thepast,for the thermoelastic damping in microbeam resonators,Zeners model (1937 Physical Review 52 230-5; 1938 Physical Review 53 90-9) and Lifshitz and Roukes model (2000 Physical Review B 61 5600-9) can give a reasonable prediction.However,the derivations of Zeners model and Lifshitz and Roukes model are only suitable for a simple beam with no proof mass.The microbeam with a proof mass is a common element in many MEMS devices.In this paper,a general proof is presented that shows LRs model is also valid for the TED in the microbeams with a proof mass.The derivation in this paper is based on a general case.
MEMS microresonator thermoelastic damping quality factor
Rufu Hu Yanning Deng Pu Li
Department of Mechanical Engineering, Ningbo University of Technology, Ningbo, China School of Mechanical Engineering, Southeast University, Nanjing, China
国际会议
重庆
英文
1185-1189
2011-06-23(万方平台首次上网日期,不代表论文的发表时间)