Optical and electrical resistance measurement methods of dynamic characteristic of film thickness

• Main Authors: Chi-Kai Xie, 謝棋凱
• Other Authors: Jeng-Haur Horng
• Format: Others
• Language: zh-TW
• Published: 2015
• Online Access: http://ndltd.ncl.edu.tw/handle/qkacuv

碩士 === 國立虎尾科技大學 === 機械與機電工程研究所 === 104 === This paper, use the optical multi-beam interference theory to measure oil film thickness, and use the multi-functional potential measured resistance value, explore the relationship between the resistance value of the oil film thickness, carried out by the motor load is applied, whereby the waveform applied to the load, and would like to know the relationship between the dynamic oil film thickness and resistance value , film thickness monitoring precision machinery arising at the time of the operation, in order to facilitate long-term use of mechanical parts and reduce the loss of power and energy generated from the friction. 　　In this study, use the optical interference theory establish a machine to measure the lubricating properties, It sets different slider angles, tangential velocities, load, dynamic load topography parameters to discuss influence of different experimental, and utilizes hydrodynamic lubrication theory to verify its feasibility, after the experiment, in the faster speed the oil film thickness will be larger, the opposite of between the load and oil film thikness, using a resistance measurement of film thickness measurement was higher, the greater the resistance value obtained after explore the relationship between the two regression curve, and get through the regression curve of the relationship between the two, so the impact resistance of the biggest factors for the film thickness, film thickness, the higher the resistance value will be increased. 　　Utilizes dynamic load simulation mechanism consistent film thickness in harsh environments film thickness machine during operation, the experimental verification and Formula Renault, the greater the speed, the faster the film after the degree, load the heavier smaller film thickness, after repeatedly applied load film thickness upward trend, while the greater the speed, the faster rise in amplitude comparison found that the higher the frequency of the appreciation after the film thickness variation converge faster, then slower frequency increased film thickness variation value is less, and the elimination of load and Dynamic load is applied to the film per second rate of change of the high rate of change of the film thickness after the second load is applied.