Modifikasyon yapılmış düz dişliler için kontak analizi

Gears are subjected to high speed and high power especially in critical applications. It is known that these high power gears are mostly subjected to main failure modes due to contact stress, bending stress, and fatigue. In this thesis, a new analytical model is developed for contact stress in selected gear pairs. The new analytical method is built by combining the Weber Banaschek Method with the Sainsot Method for mesh stiffness and gear foundation stiffness, respectively. Results obtained from the newly developed method are compared to the results obtained from available transmission tools (MASTA and KISSsoft). Combination of these two analytical methods yielded accurate results. It is also seen that the analytical solutions are more close to KISSsoft results than the MASTA solutions. The contact stress calculations according to the new method resulted close to ISO standard and compared to the FEM module of MASTA. The results obtained from the new analytical method are close to experimental results by 96%. The MASTA Programme tends to give higher results on contact pressure compared to KISSsoft solutions. Finally, calculations according to AGMA 2001-C95 standard yielded in lower safety factors compared to the ISO 6336 standard.