Effect of blade oblique angle and cutting speed on cutting energy for energycane stems

Mathanker, Sunil K.; Grift, Tony E.; Hansen, Alan C.

doi:10.1016/j.biosystemseng.2015.03.003

Cited by 68 publications

(53 citation statements)

References 9 publications

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“…The structure of cutting blade, working parameters and stems' physical and mechanical properties have a significant effect on cutting energy [8,15,21,24] . Present results revealed that average peak cutting force per unit stem area and cutting energy was the highest when cutting in the upper stem level.…”

Section: Discussionmentioning

confidence: 99%

“…It was reported that the blade edge sharpness, type of cutting blade, and stems' physical and mechanical properties were the major factors to affect the cutting energy of size reduction [13,14] . Studies founded that the lowest average specific cutting energy was 0.26 J/mm for a 60° oblique angle at an average cutting speed of 7.9 m/s [15] . Gupta and Oduri reported that the optimum values of tilt angle, oblique angle and blade peripheral velocity for a revolving knife-type sugarcane base cutter were 27°, 35°, and 13.8 m/s, respectively [16] .…”

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confidence: 99%

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Effects of blade sliding cutting angle and stem level on cutting energy of rice stems

Zhang

Chen

Xia

et al. 2019

International Journal of Agricultural and Biological Engineering

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Previous studies highlighted the significance of optimizing the cutting blade for crop harvesting and size reduction. This study investigated the effect of blade sliding cutting angle and stem level on cutting energy of single rice stem using a cutting apparatus that combined with texture analyzer. The cutting energy was determined for four blade angles. The results showed that the average cutting energy was the highest for cutting stem upper level and the lowest for cutting stem lower level. It was found that the peak cutting force per unit stem area decreased with blade sliding cutting angle increased. However, the least average cutting energy was 9.12 J/mm 2 of 45° sliding angle when cutting without counter support blade and 32.3% less than that of 60° sliding angle. When cutting with counter support blade, the cutting energy per unit stem area varied from 6.57 to 12.54 J/mm 2 as the sliding angle varied from 0° to 60°, whereas the peak cutting force per unit stem area varied from 2.46 to 0.98 N/mm 2 . It was concluded that the optimal sliding cutting angle was 45° without support blade and 30° with support blade, respectively. The experiments on rice stems in this study indicated that optimization of sliding cutting angle and stem level have a significant effect on cutting energy savings. Also this study emphasized the need to further investigate the effect of the case of more moisture content and cutting speed on the cutting energy to help in selection of optimum cutting speed and harvesting time. Citation: Zhang C L, Chen L Q, Xia J F, Zhang J M. Effects of blade sliding cutting angle and stem level on cutting energy of rice stems. Int J Agric & Biol Eng, 2019; 12(6): 75-81.

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Section: Discussionmentioning

confidence: 99%

mentioning

confidence: 99%

Effects of blade sliding cutting angle and stem level on cutting energy of rice stems

Zhang

Chen

Xia

et al. 2019

International Journal of Agricultural and Biological Engineering

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“…Therefore the energy requirement for cutting of small diameter stalks could be lower than large diameter. The researchers [1,2,3,4,12,15] have stated that as the stem diameter decreases thus, the cutting energy will reduce. The present study for cassava stem shows similar results with the other researchers.…”

Section: Resultsmentioning

confidence: 99%

“…A highest shearing energy of 10.96 mJ at 36% moisture content (wb) and lowest shearing energy of 9.77 mJ at 57% moisture content (wb) for canola stems [14]. The highest cutting energy of 12.2 J and lowest cutting energy of 6.9 J for cross sectional area of 175 and 125 mm 2 , respectively observed for cutting cane stems [15].…”

Section: Introductionmentioning

confidence: 99%

Cassava Stem Crop Parameters Effect on Cutting Energy

Prasanthkumar

Marimuthu

2020

AIR

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The study was conducted to understand the energy involves in cassava stem cutting in order to optimize design of cutting elements in cassava stem cutting. The cutting energy is measured using pendulum type test rig and it works under the principle of law of conservation of energy. The tests were conducted at 3 levels of average moisture content [43.75, 56.50 and 64% (wb)] and stem diameter (25.22, 28.71 and 33.29 mm) with 3 replications. The results revealed that the cutting energy was increased with increase in moisture content and stem diameter. The cutting energy of cassava stem increased by 23.26% when the average moisture content was increased from 43.75 to 64% and reduced by 17.31% when the stem diameter was increased from 25.22 to 33.29 mm.

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“…Researchers started to study on agricultural machines a few decades ago. Sprinkling pesticides, planting, weeding, crop harvesting, and pest monitoring operations are conducted based on appropriate agricultural equipment [1][2][3][4][5]. In the agricultural field, however, the use of robots still accounts for only a small percentage of the total work [6].…”

Section: Introductionmentioning

confidence: 99%

RBF-Based Monocular Vision Navigation for Small Vehicles in Narrow Space below Maize Canopy

et al. 2016

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Abstract:Maize is one of the major food crops in China. Traditionally, field operations are done by manual labor, where the farmers are threatened by the harsh environment and pesticides. On the other hand, it is difficult for large machinery to maneuver in the field due to limited space, particularly in the middle and late growth stage of maize. Unmanned, compact agricultural machines, therefore, are ideal for such field work. This paper describes a method of monocular visual recognition to navigate small vehicles between narrow crop rows. Edge detection and noise elimination were used for image segmentation to extract the stalks in the image. The stalk coordinates define passable boundaries, and a simplified radial basis function (RBF)-based algorithm was adapted for path planning to improve the fault tolerance of stalk coordinate extraction. The average image processing time, including network latency, is 220 ms. The average time consumption for path planning is 30 ms. The fast processing ensures a top speed of 2 m/s for our prototype vehicle. When operating at the normal speed (0.7 m/s), the rate of collision with stalks is under 6.4%. Additional simulations and field tests further proved the feasibility and fault tolerance of our method.

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Effect of blade oblique angle and cutting speed on cutting energy for energycane stems

Cited by 68 publications

References 9 publications

Effects of blade sliding cutting angle and stem level on cutting energy of rice stems

Effects of blade sliding cutting angle and stem level on cutting energy of rice stems

Cassava Stem Crop Parameters Effect on Cutting Energy

RBF-Based Monocular Vision Navigation for Small Vehicles in Narrow Space below Maize Canopy

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