スピンドルロータのボルト締結部における等価剛性(機械力学,計測,自動制御)

概要

論文の詳細を見る
rights: 社団法人日本機械学会rights: 本文データは学協会の許諾に基づきCiNiiから複製したものであるrelation: IsVersionOf: http://ci.nii.ac.jp/naid/110006836826/This paper describes an investigation of equivalent stiffness of a joint layer of a spindle rotor. The test rotor is composed of a journal part and two thrust plates bound with bolts. The each thrust plate and the journal part are clamped with eight M 4 bolts which are arranged on the circle at 45 degrees intervals with a uniform clamping torque. The each surface of bolted joints is processed by two methods in order to change the roughness of surface. We propose the identify procedure of the equivalent stiffnesses of the joint layer in normal and tangential direction based on the modal analysis theory and we can identify the equivalent stiffness in two surface conditions of joint layer. By using the identified equivalent stiffnesses, we can calculate natural frequencies of higher order which are not used in the identified procedure and the calculated ones are fairly good well with the measured natural frequencies of higher order. In two surface conditions of the joint layer, the normal stiffness and the tangential stiffness increase as the clamping torque of each bolt increases. On the other hands, in all condition of clamping torque, the normal stiffness and the tangential stiffness increase as the roughness of surface decreases. Moreover, the ratio of the tangential stiffness to the normal stiffness decreases as the surface of ronghness decreases.
社団法人日本機械学会の論文
2008-07-25

スピンドルロータのボルト締結部における等価剛性(機械力学,計測,自動制御)

スポンサーリンク

概要

著者

関連論文

スポンサーリンク