Mechanical property of cutting shorten stems of mustard tuber

doi:10.3969/j.issn.1004-1524.2021.10.18

Acta Agriculturae Zhejiangensis ›› 2021, Vol. 33 ›› Issue (10): 1939-1945.DOI: 10.3969/j.issn.1004-1524.2021.10.18

• Biosystems Engineering • Previous Articles Next Articles

Mechanical property of cutting shorten stems of mustard tuber

ZHENG Hang(), XUE Xianglei, YU Guohong^*()

Institute of Agricultural Equipment, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China

Received:2021-04-19 Online:2021-10-25 Published:2021-11-02
Contact: YU Guohong

Abstract

Abstract:

In order to obtain best parameters for the cutting of shorten stems of mustard tuber, the single-factor experiments and orthogonal tests were carried out on the TMS-Pro texture analyzer. The maximum cutting force and the average cutting force were selected as test indexes, and the effects of cutter type, sliding angle, cutting speed and cutting direction on the cutting force during the cutting process of shorten stems of mustard tuber were analyzed.It was shown that the sliding angle had significant (P<0.05) effect on the maximum cutting force and the average cutting force. The cutter type had significant (P<0.05) influence on the average cutting force, and the sawtooth cutter was more labor-saving than the light cutter. The most labor-saving combination for cutting of shorten stems of mustard tuber was as follows: sawtooth cutter, sliding angle of 20°, and cutting speed of 80 mm·min^-1. Under this circumstance, the maximum cutting force was 86.2 N,and the average cutting force was 53.1 N. These findings could provide references for the design of the cutting device for shorten stems of mustard tuber.

Key words: mustard tuber, mechanical property, shorten stems, cutting

CLC Number:

S225.92

ZHENG Hang, XUE Xianglei, YU Guohong. Mechanical property of cutting shorten stems of mustard tuber[J]. Acta Agriculturae Zhejiangensis, 2021, 33(10): 1939-1945.

Figures/Tables 12

Fig.1 Equipment for cutting test

Fig.2 Cutters used in this experiment The sliding angle of cutters from left to right in the figure is 0, 10°, 20°, accordingly.

Fig.3 Sketch of mustard tuber H, Height of stem tumor; L2, Width of stem tumor;l, Length of shorten stems; D, Width of shorten stems.

Fig.4 Diagram of cutting methods

Fig.5 Diagram of sliding cut test

Fig.6 Special fixture for cutting test 1, Blade mount; 2, Cutting blade; 3, Shorten stems of mustard tuber; 4, U-shaped seat 1; 5, U-shaped seat 2; 6, Frame.

Table 1 Factors and levels of orthogonal test

水平 Level	试验因素Experiment factor
水平 Level	A	B/(°)	C/(mm·min^-1)
1	光刃Light cutter	0	30
2	锯齿刃 Sawtooth cutter	10	80
3	—	20	120

Fig.7 Cutting force-displacement curves under different cutters

Fig.8 Cutting force-displacement curves under different sliding angles

Fig.9 Cutting force-displacement curves under different cutting speeds

Fig.10 Cutting force-displacement curves under different cutting directions

Table 2 Orthogonal test design and result

试验序号 Test number	试验因素Experiment factor			最大切割力 Maximum cutting force/N	平均切割力 Average cutting force/N
试验序号 Test number	A	B	C	最大切割力 Maximum cutting force/N	平均切割力 Average cutting force/N
1	1	1	1	131.6	84.2
2	1	2	2	107.9	72.4
3	1	3	3	100.8	60.5
4	1	1	2	125.6	82.3
5	1	2	3	113.6	71.6
6	1	3	1	105.1	64.3
7	2	1	3	119.7	69.2
8	2	2	1	94.3	60.5
9	2	3	2	86.8	53.5

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Mechanical property of cutting shorten stems of mustard tuber

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