A new, more accurate formula describing double and multiple-shell axial magnetic shielding is obtained as a result of numerical verification of existing estimations. A standard ANSYS software package was used. Parameters of the numerical model are as follows. Two concentric, closed cylinders of equal thickness and constant permeability are considered. The thickness-to-diameter ratio of the oute...

The purpose of this study is both theoretically and experimentally to clarify the dynamic stress of a discharge reed valve with oval shape, and to get fundamental knowledge for the design of this type valve and its related parts. The strain measurements were performed on the strain gauge bonded on the surface of the oval shaped reed valve. The stress and deformation of the valve were also calcu...