TY - JOUR
T1 - Application of stabilized term in free boundary problems for optimizing bi-directional-rotation herringbone-grooved journal bearings
AU - Chen, Chien Yu
AU - Liu, Chien Sheng
AU - Tee, Chin Ke
AU - Li, Yu Cheng
N1 - Funding Information:
The authors gratefully acknowledge the financial support provided to this study by the National Science Council of Taiwan under Grant No. NSC 101-2221-E-194-065 and the Ministry of Science and Technology of Taiwan under Grant No. MOST 103-2221-E-194-006-MY3. The authors also gratefully acknowledge the company Tung Pei industrial co. ltd. to provide FDB prototypes and experimental apparatus for measuring FDBs characteristics.
Publisher Copyright:
© 2016 Elsevier Inc.
PY - 2017/7
Y1 - 2017/7
N2 - In order to deal with the free boundary problems occurred in cavitation region, this work incorporates an artificial term in Reynolds equation to stabilize the solution. The current result shows that adding the extra term gives accurate pressure distribution and benefits the selection of the groove shape and size. In addition, this study utilizes herringbone grooves on a reversible rotating journal bearing (RHGJB) and numerically analyzes the characteristics of miniature journal bearings with an inner diameter of 0.6 mm. Miniature journal bearings are limited in that the load capacity is significantly reduced with decreased bearing size, and therefore, the performances (load capacity and side leakage) of miniature RHGJBs are optimized. The optimum geometrical appearance of miniature RHGJBs is calculated by evaluating several groove parameters. Using the Taguchi parameter design methodology greatly reduces the number of full-factorial experimental design tests required to determine the optimal design parameters of the RHGJB from 59 (1,953,125) to 450 runs.
AB - In order to deal with the free boundary problems occurred in cavitation region, this work incorporates an artificial term in Reynolds equation to stabilize the solution. The current result shows that adding the extra term gives accurate pressure distribution and benefits the selection of the groove shape and size. In addition, this study utilizes herringbone grooves on a reversible rotating journal bearing (RHGJB) and numerically analyzes the characteristics of miniature journal bearings with an inner diameter of 0.6 mm. Miniature journal bearings are limited in that the load capacity is significantly reduced with decreased bearing size, and therefore, the performances (load capacity and side leakage) of miniature RHGJBs are optimized. The optimum geometrical appearance of miniature RHGJBs is calculated by evaluating several groove parameters. Using the Taguchi parameter design methodology greatly reduces the number of full-factorial experimental design tests required to determine the optimal design parameters of the RHGJB from 59 (1,953,125) to 450 runs.
UR - http://www.scopus.com/inward/record.url?scp=85020296726&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85020296726&partnerID=8YFLogxK
U2 - 10.1016/j.apm.2016.11.002
DO - 10.1016/j.apm.2016.11.002
M3 - Article
AN - SCOPUS:85020296726
SN - 0307-904X
VL - 47
SP - 826
EP - 838
JO - Applied Mathematical Modelling
JF - Applied Mathematical Modelling
ER -