The present study is devoted to investigation of spur gears with a conchoidal path contact and convex-convex between teeth. load capacity energy efficiency were evaluated using both theoretical experimental approaches. analysis showed that the gear pairs are 5–21% stronger in terms stress have similar as compared involute same configuration. Experiments conducted on test rig. Its was determined...

A method of machining the internal double-arc spiral bevel gear with a finger milling cutter was presented. The mathematical model tooth profile established considering principle by generating method, and three-dimensional (3D) graph developed. Subsequently, applying meshing theory, 3D alignment curve for established. Based on surface equation crown gear, intercept derived. divided into four cu...

Load-sharing among the teeth of involute splines is little understood. Designers typically assume only a fraction of the teeth are engaged and distribute the load uniformly over the assumed number of engaged teeth. This procedure can widely overor underestimate tooth loads. A new statistical model for involute spline tooth engagement has been developed and presented earlier, which takes into ac...

PURPOSE To compare low dose volume and integral dose of various rotational arc radiation therapy modalities, including helical tomotherapy (HT) and other volumetric modulated arc therapies (VMAT). METHODS A digital cylindrical phantom and an anthropomorphic pelvic phantom were used in the study. HT treatment was planned on TomoTherapy Planning Station (Accuray) and VMAT plans were generated o...

The face load factor KH, which in rating equations represents the load distribution over the common face width in meshing gears, is one of the most important items for a gear strength calculation. In the international standard for cylindrical gear rating, the ISO6336-1 [1], using method C, some formulas are proposed to get a value for this factor. But as the formulas are simplified, the result...