Analyses of stress between incontacting bodies due to intermolecular force and its application to ultra-high density magnetic recording in the next generation
| Project/Area Number |
15K05764
|
|---|
| Research Category |
Grant-in-Aid for Scientific Research (C)
|
| Allocation Type | Multi-year Fund |
|---|
| Section | 一般 |
|---|
| Research Field |
Design engineering/Machine functional elements/Tribology
|
|---|
| Research Institution | Tottori University |
|---|
Principal Investigator |
|
|---|
| Co-Investigator(Kenkyū-buntansha) |
福井 茂壽 鳥取大学, 工学研究科, 特任教授 (40273883)
|
|---|
| Project Period (FY) |
2015-04-01 – 2018-03-31
|
| Project Status |
Completed (Fiscal Year 2017)
|
| Budget Amount *help |
¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2017: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2016: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2015: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
|
|---|
| Keywords | 表面間力 / 応力分布 / 非接触状態の応力分布 / 材料分布によるせん断応力 / 材料分布による表面間力の変化 |
|---|
| Outline of Final Research Achievements |
(1)A method of driving the normal and shear stresses under the non-contact condition has been established considering one-dimensional material distributions in the in-plane direction based on the Lennard-Jones potential. (2)Based on the above one-dimensional calculation, the stresses for periodical two-dimensional material distribution have been successfully derived. (3)Stress distributions between a sphere and a plane have been calculated and the basic characteristics were clarified. (4)Using a surface force tester, the surface forces between a sphere and a plane were measured with an ultra-high resolution. The effects of surface roughness has been clarified. (5)Flying characteristics of a magnetic head slider were analyzed considering the surface forces. The effects of temperature distribution and accommodation coefficients of boundaries were clarified.
|
Report
(4 results)
Research Products
(29 results)
