CAJ | 학술논문

由于弹流润滑的接触区域小、润滑膜厚度薄，且由于润滑脂的非线性黏塑性和强烈的非牛顿性，使得弹流脂润滑的润滑膜厚度测量及实验研究十分困难。基于光干涉测量润滑膜厚度的基本原理，研制出一种弹性流体动力脂润滑的光干涉试验台，并设计其机械传动装置、图像采集装置、供脂及加载装置。在该光干涉试验台上进行白光干涉和单色光干涉试验， Hertz干接触及弹流脂润滑试验。结果表明，该光干涉试验台采集的图像清晰稳定；采用单色光干涉试验比白光干涉试验获得的条纹更加清晰，且测量范围更大。理论计算与实验测量结果一致，表明该试验台可用于弹流脂润滑的实验研究。
유우탄류윤활적접촉구역소、윤활막후도박，차유우윤활지적비선성점소성화강렬적비우돈성，사득탄류지윤활적윤활막후도측량급실험연구십분곤난。기우광간섭측량윤활막후도적기본원리，연제출일충탄성류체동력지윤활적광간섭시험태，병설계기궤계전동장치、도상채집장치、공지급가재장치。재해광간섭시험태상진행백광간섭화단색광간섭시험， Hertz간접촉급탄류지윤활시험。결과표명，해광간섭시험태채집적도상청석은정；채용단색광간섭시험비백광간섭시험획득적조문경가청석，차측량범위경대。이론계산여실험측량결과일치，표명해시험태가용우탄류지윤활적실험연구。
Because of the tiny contact area and thin lubricating film thickness of elastohydrodynamic lubrication( EHL) , as well as the nonlinear viscoplastic property and strong non?Newtonian behavior of greases,it is difficult to measure the lu?bricating film thickness of grease EHL, and carry out the experiments of grease EHL. Based on optical interferometry, a grease EHL test bench was developed,and its mechanical transmission device,image capturing device,and grease reservoir and loading device were designed.The white light and monochromatic light interference experiments,Hertz dry contact and grease EHL experiments were carried out the designed test bench. The experimental results show the collected images by this test bench are clear and consistent.The monochromatic light interference experiment can measure the lubricating film thickness in a wider measurement range,and the image pattern by monochromatic light interference is clearer than that by white light interference.Theroratical calculation result is consistent with experimental result,indicating this test bench is suitable for experimental research of grease EHL.