Numerical determination of the mechanical stiffness of a force measurement device based on capacitive probes: Application to roller bearings

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• 作者：Fabien Bogard^a ; Sé ; bastien Murer^a ; ^{sebastien.murer@univ-reims.fr} ; Lanto Rasolofondraibe^b ; Bernard Pottier^b
• 关键词：Roller bearings ; Local mechanical stiffness ; Capacitive probe ; Nanometric displacement measurement ; Radial forces measurement ; FEM
• 刊名：Journal of Computational Design and Engineering
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：4
• 期：1
• 页码：29-36
• 全文大小：3254 K
• 卷排序：4

文摘

The principle of capacitive measurement is explained. We model the upper half of the bearing placed in a housing in which grooves for the capacitive probes have been machined. Numerical results in terms of stress field due to probe housings presence and fillets on this housing are explained. FE simulations allow computation of local mechanical stiffness and transmitted radial forces. Very good agreement is obtained between recomputed roller-wise radial force and that directly extracted from the FE results.