This paper studies transverse - torsion vibration of blade and formulates the equation of motion of band saw blades . the solution of this thesis can be the manufacture reference and the original theory base of research of tightening device dynamics analysis of band saw in the future 本文对带锯条横向扭转振动进行了研究，验证了带锯条横向振动方程和扭转振动方程，为进一步研究带锯机的动态特性奠定了初步的理论基础。
