このアイテムのアクセス数: 232

このアイテムのファイル:
ファイル 記述 サイズフォーマット 
j.precisioneng.2013.01.010.pdf504.93 kBAdobe PDF見る/開く
タイトル: Stiffness model of machine tool supports using contact stiffness
著者: Kono, Daisuke  kyouindb  KAKEN_id
Inagaki, Takahiro
Matsubara, Atsushi  kyouindb  KAKEN_id
Yamaji, Iwao
著者名の別形: 河野, 大輔
キーワード: Stiffness model
Support stiffness
Contact stiffness
Concrete
Machine tool
発行日: Jul-2013
出版者: Elsevier Inc.
誌名: Precision Engineering
巻: 37
号: 3
開始ページ: 650
終了ページ: 657
抄録: The stiffness of machine tool supports should be properly designed for reducing both the ground disturbance vibration and the drive disturbance vibration. However, the stiffness cannot be easily calculated from the geometry and material properties of the support. In this paper, a 3D stiffness model of a machine tool support is proposed using contact stiffness. The stiffness in each direction is assumed to be determined by the contact stiffness at the interfaces and the bulk stiffnesses of the supports and the floor. The contact stiffness model proposed by Shimizu et al. is expanded to determine the contact stiffness in the normal and tangential directions of an interface. In the proposed model, the contact stiffness is obtained by multiplying the unit contact stiffness by the real contact area. The contact stiffness of concrete is experimentally investigated to estimate the stiffness between machine tool supports and the floor, and it was observed to be the primary determinant of the stiffness of interfaces between metal and concrete. Moreover, the unit contact stiffness of concrete is discovered to be less than 1/10 of those of the metals that were used for the study. The natural frequency and vibration mode shape of a model machine tool bed are also experimentally measured and used to verify the proposed stiffness model. The comparison of the results obtained from the two procedures shows that the natural frequency and vibration mode shape of a machine tool bed can be predicted using the proposed stiffness model.
著作権等: © 2013 Elsevier Inc.
この論文は出版社版でありません。引用の際には出版社版をご確認ご利用ください。This is not the published version. Please cite only the published version.
URI: http://hdl.handle.net/2433/174061
DOI(出版社版): 10.1016/j.precisioneng.2013.01.010
出現コレクション:学術雑誌掲載論文等

アイテムの詳細レコードを表示する

Export to RefWorks


出力フォーマット 


このリポジトリに保管されているアイテムはすべて著作権により保護されています。