The Biomimetic Shark Skin Optimization Design Method for Improving Lubrication Effect of Engineering Surface [0.03%]
用于提高工程表面润滑效果的仿鲨鱼皮减阻优化设计方法研究
Yan Lu,Meng Hua,Zuomin Liu
Yan Lu
Nature has long been an important source of inspiration for mankind to develop artificial ways to mimic the remarkable properties of biological systems. In this work, a new method was explored to fabricate a biomimetic engineering surface c...
Research on the Mechanical Properties of "Z" Type Double-Decker Ball Bearings [0.03%]
“Z”型双层球轴承力学性能研究
Chengtao Yu,Longxiang Xu,Xudong Yu
Chengtao Yu
The mechanical model of a "Z" type double-decker ball bearing under the action of radial load is established in this paper on the basis of the Hertz contact theory. According to the security contact angle theory, the influences of inner and...
Anthony P Sanders,Rebecca M Brannon
Anthony P Sanders
Laboratory testing of contact phenomena can be prohibitively expensive if the interacting bodies are geometrically complicated. This work demonstrates means to mitigate such problems by exploiting the established observation that two geomet...
Effects of Gas Rarefaction on Dynamic Characteristics of Micro Spiral-Grooved Thrust Bearing [0.03%]
气体稀薄效应对微螺旋槽推力轴承动力学特性的影响研究
Ren Liu,Xiao-Li Wang,Xiao-Qing Zhang
Ren Liu
The effects of gas-rarefaction on dynamic characteristics of micro spiral-grooved-thrust-bearing are studied. The Reynolds equation is modified by the first order slip model, and the corresponding perturbation equations are then obtained on...
A Potential Elastohydrodynamic Origin of Load-Support and Coulomb-Like Friction in Lung/Chest Wall Lubrication [0.03%]
肺/胸壁润滑的潜在弹性流体动力学负载支撑和库仑摩擦类润滑机制起源
James P Butler,Stephen H Loring
James P Butler
BACKGROUND: During normal breathing, the mesothelial surfaces of the lung and chest wall slide relative to one another. Experimentally, the shear stresses induced by such reciprocal sliding motion are very small, consistent with hydrodynami...