BFH-series strain gages can be cured without pressurizing so as to easy the operation of strain gages installation on a wind tunnelbalance.
BFH系列箔式应变计可以不加压固化，从而极大地方便了风洞天平的使用。
2
The application of Finite Element Analysis FEA to the design of the structure of wind tunnelbalance obtains the rule of stress distribution on the wind tunnelbalance by computing the whole body.
把有限元法应用到风洞天平结构设计，对其整体结构进行了计算，得出了风洞天平各种载荷作用下的应力场。
3
Based upon the shield construction practice in the portal section of South Tube of Yanan Donglu Tunnel, this paper demonstrates the technology for slurry balance shield passing through freezing zone.