基于剪切角的最小能量解，对正交切削时的切削力进行了理论预报。
Based on the minimum energy solution of shear Angle, the cutting forces in orthogonal machining are predicted theoretically in this paper.
这种系统能根据切削力及频谱能量的变化，有效地在线监测刀具工况。
By the system, the cutter working condition on-line measurement and test can be made effectively on the basis changes of cutting force and spectral power.
本文从振动的基础理论出发，认为在挖掘过程中施加切削方向的振动后，能够大大降低作业过程中的挖掘阻力，并提高能量的利用效率。
According to the basic theory of vibration, the article considers that vibration in the process of excavation can reduce the digging force and improve the energy efficiency greatly.
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