... at the trailing edge of the top foil to enhance air stream mixing, thus influencing heat dissipation. The main purpose of this study is to identify the optimal design parameters of the top foil trailing edge shape and provide a guideline for future air foil thrust bearing design. In this regard, 3D computational...

...Jiacheng Miao; Xing Du; Chaoyang Li; Bingkui Chen A systematic process of matrices-based wear profile modeling and a new optimization approach for planetary roller screw mechanism (PRSM) was proposed in this paper to improve the anti-wear performance with varied thread geometries. The wear...

... bearing becoming harsher, and severe wear may occur. The present study is aimed at mitigating its wear condition through surface texturing. Based on a transient tribo-dynamics model considering the coupling effect of the journal and thrust bearings, a texture optimization study for the thrust bearing...

...Rodrigo Nicoletti References [1] Rohde , S. M. , and McAllister , G. T. , 1976 , “ On the Optimization of Fluid Film Bearings ,” Proc. R. Soc. London, Ser. A , A351 , pp. 481 – 497 . 10.1098/rspa.1976.0153 [2] Robert , M. P. , 1990 , “ Optimization of Self-Acting Gas...

... bearings is optimized in a sense of enhancing the stability of the full circular bearing at high rotational speeds. A performance index is chosen as the sum of the squared whirl-frequency ratios over a wide range of eccentricity ratios, and a Fourier series is used to represent an arbitrary clearance...

... are employed in the static analysis of the slider. The steady state attitude of the femto slider is studied for various radial positions and skew angles. It is found that the perturbation method is an efficient method for gradient evaluation. Also, it is shown that optimization of the Hessian matrix form...