基于ABAQUS的圆锯片切削竹筒仿真试验研究

Simulation Experimental Study of Circular Saw Blade Cutting Bamboo Tube Based on ABAQUS

为降低伐竹机械工作过程中所受切削力,寻找最优切削参数组合,基于ABAQUS对圆锯片结构进行约束模态分析,对切削竹筒过程进行仿真模拟。通过单因素试验研究了圆锯片转速Vc、进给速度Vf、切削倾角θ和齿数Z对峰值切削力的影响,并以上述4个因素为影响因素,峰值切削力为评价指标进行正交试验以获得优化参数组合。结果表明:峰值切削力随着转速、进给速度和切削倾角的增加先减小后增大,随着齿数的增加而减小。当圆锯片转速为3000 r/min、进给速度为0.2 m/s、倾斜角度为10°、齿数为40 T时,可在一定程度上降低圆锯片所受切削力,并且切削断面平整。研究结论可为伐竹机械的设计提供参考。

To reduce the cutting force in the working process of bamboo cutting machine and find the optimal combination of cutting parameters,the constrained modal analysis of a circular saw blade structure was carried out based on ABAQUS,and the process of cutting bamboo tube was simulated.The influence of the circular saw blade rotational speed Vc,feed rate Vf,cutting angleθand tooth number Z on the peak cutting force was studied by single factor tests.The orthogonal test was carried out with the above four factors as the influencing factors and the peak cutting force as the evaluation index to obtain the optimal combination of cutting parameters.The results showed that the peak cutting force decreases first and then increases with the increase of rotational speed,feed speed and cutting angleθ,and decreases with the increase of tooth number.When the rotating speed of circular saw blade is 3000 r/min,the feed speed is 0.2 m/s,the cutting angle is 10°and the tooth number is 40 T,the cutting force of circular saw blade can be reduced to a certain extent,and the cutting section is smooth.The research conclusions can provide reference for the design of bamboo cutting machine.