遊星歯車における内歯車の実働応力と疲労寿命について

概要

論文の詳細を見る
In 1976, Kawasaki Heavy Industries, Ltd. manufactured an Epicyclic Gears for Medium-speed Diesel Engine developing 18, 000 ps and made the first step for practical use. In order to confirm the performance of the Epicyclic Gears, Shop Load Test and Sea Trial were carried out successfully, and stress at the roots of Annulus teeth and load sharing between the planet gears were measured during these testings in addition to general measurements, such as vibration, noise, torque and dynamical displacement of shafts and others. In this thesis we report the results of above mentioned measurements and also estimate the Fatigue Life of Annulus teeth under expected operating condition of the ship. The following results were obtained from these testings; (1) Measured tooth stress in close to the value calculated by Lewis equation considering stress concentration factor. (2) Equalizing the load on each planet gear is considered good, because the obtained Load sharing factors are almost less than 1.05 and maximum value is around 1.10. (3) Gear teeth are considered enough safe from the viewpoint of the Fatigue Life under expected operating condition of the ship.
社団法人日本マリンエンジニアリング学会の論文