双柱压力机(图1a)是由上横梁(B)、下横梁(H)和立柱(G)组成的。当工作压力P作用在横梁上时,两立柱就会靠近,将滑块夹紧。如果把机架当做静不定体系,那么夹紧力T的计算就会得出过高的结果。偏差的原因是横梁的厚度大。力T的减小是因转角处1、2的变形产生的,因此在确定静不定体系时,就应考虑这些变形。 The double column press (Figure 1a) consists of an upper beam (B), a lower beam (H) and a column (G). When the working pressure P acting on the beam, the two columns will be close, the slider clamp. If the rack is assumed to be a static system, then the calculation of the clamping force T will lead to too high a result. The reason for the deviation is that the thickness of the beam is large. The decrease in force T is due to the deformation at corner 1 and corner 2, so these distortions should be taken into consideration when determining the system of indeterminacy.