并用附加弯矩的概念论述了区分压杆的强度和稳定问题的标志，说明压杆的第二类稳定问题和梁柱问题具有共性——均属于强度问题。
The criterion judging strength and stability problems may be obtained by using the concept of additional moment, and the general character of these structures is that they belong to strength problem.
摩托车液压盘式制动器径向尺寸较小，制动时沿制动盘的轴向施力，制动轴不受弯矩，制动性能稳定，应用较广。
Motorcycle disk brake is widely used because of its small radial dimensions, axial application of force along the disk when braking, no bending moment on brake shaft and braking stability.
文章通过计算分析，发现可以用支座负弯矩调幅和减小梁间距的办法，满足侧向稳定的要求。
This paper can satisfy the requirement with steady lateral buckling with the method that scales down the bending moment and abate the space between beams.
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