With the increasing speed of aviation spiral bevel gears, load-independent windage power losses caused by hydrodynamic have increasingly more influence on gear transmission efficiency. Firstly, a test rig for loss under oil-jet lubrication is established, and this basis, method measuring torque proposed. Next, interactive effects different injection parameters were studied orthogonal experiment...

The purpose of the research is to improve method for calculating lifetime bevel gears with a circular tooth driving axle BELAZ dump truck hydromechanical transmission. An analysis domestic and foreign calculation methods showed that when determining contact stresses in gearing, influence modification side surfaces teeth on magnitude internal dynamic loads not taken into account, which leads sig...

BACKGROUND Intracerebral drug delivery using surgically placed microcatheters is a growing area of interest for potential treatment of a wide variety of neurological diseases, including tumors, neurodegenerative disorders, trauma, epilepsy, and stroke. Current catheter placement techniques are limited to straight trajectories. The development of an inexpensive system for flexible percutaneous i...