手动操作压杆,并可通过上方显示屏观看冲压纪念币的过程。
The equipment includes the upper compression bar (3), the lower compression bar (4), the heater coil (6) and a working chamber (12), etc.设备包括上压杆(3)、下压杆(4)、加热线圈(6)、工作腔体(12)等。
A new approximate formula for the large deflection problem of compression bar with two ends are simply supported is obtained, by the use of Ritz-Galerkin method.通过非线性振动中常用的里兹-伽辽金法,推出了两端铰支压杆大挠度问题的一个新近似公式,计算结果表明具有较高的精度。