金刚石圆锯片行波共振分析及优化

针对金刚石圆锯片工作时出现的共振和噪声问题，利用Workbench软件对直径600 mm空转的圆锯片进行行波共振和静力分析，研究圆锯片基体中的开孔和夹层对其行波共振的影响。结果表明：圆锯片基体上合理开孔可以规避行波共振，其中开雨滴型孔的圆锯片减振效果最好，其δ最大值为4.36%，远大于未开孔与开圆形流线型孔的0.09%和0.91%。进一步对开雨滴型孔的圆锯片的夹层进行优化，其δ值为7.58%，达到夹层前的近2倍，更不容易引起行波共振。同时，优化后的圆锯片变形和应力值变大，但远小于其许用应力值，表明其强度和刚度满足使用要求，不会造成疲劳失效。

Analysis and optimization of traveling wave resonance of diamond circular saw blade

To solve the resonance and the noise problems of diamond circular saw blades during operation, the workbench software was used to analyze the traveling wave resonance and the static force of the idling circular saw blade with the diameter of 600 mm, and the effects of openings and interlayers in the circular saw blade matrix on its traveling wave resonance were studied. The results show that the reasonable openings in the matrix of circular saw blade can avoid traveling wave resonance, and the circular saw blade with raindrop holes has the best vibration reduction effect, the maximum value of δ is 4.36%, which is much larger than 0.09% and 0.91% of non-perforated and circular streamlined holes. The interlayer of circular saw blade with raindrop holes is further optimized, its δ value is 7.58%, which is nearly twice that before the interlayer, and it is not easy to cause traveling wave resonance. At the same time, the deformation and stress of the optimized circular saw blade become larger, but far less than its allowable stress value, indicating that its strength and stiffness meet the service requirements and will not cause fatigue failure.