Effects of Knife Shapes and Cutting Speeds of a Mower on the Power Consumption for Pulverizing Sweet Potato Vine

Kakahy, Amer N. N.; Ahmad, Desa; Akhir,; Sulaiman, Shamsuddin; Aris, Ishak

doi:10.4028/www.scientific.net/kem.594-595.1126

Cited by 5 publications

(3 citation statements)

References 12 publications

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“…When the λ continues to increase, the cutting stroke of the blade increases, which makes the frictional resistance become the main factor affecting the cutting force, making the cutting force gradually increase (Kang et al 2020;Gao et al 2021). When the v is 0.3 to 0.5 m/s, as the v increases, the elastic deformation time of the branch decreases, which makes the cutting force gradually decrease (Kakahy et al 2014).…”

Section: Effect Of Interaction Terms On Branch Cuttingmentioning

confidence: 99%

“…Most studies have been conducted for single-knife impact cutting, or universal testing machine cutting tests in lowspeed modes (Cristovao et al 2013). If the cutting speed is high, then the cutting energy consumption may be high even with a small cutting force (Kakahy et al 2014). Therefore, it is desirable to reduce both cutting force and cutting power consumption.…”

Section: Introductionmentioning

confidence: 99%

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Multi-objective optimization of peak cutting force and cutting energy consumption in cutting of Caragana korshinskii branches

Gao

Tong

et al. 2022

BioRes

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Caragana korshinskii (C.K.) flat stubble residue is an abundant biomass energy source in China. Because branch cutting is closely related to the harvesting of forest biomass, it is practical for forestry production and ecological development to investigate the effects of cutting parameters on the peak cutting force and cutting energy consumption of C.K. branches. In this study, the effect of cutting parameters on the peak cutting force and cutting power consumption of branches was investigated by single-factor and multi-factor tests using an independently developed reciprocating cutting test bench, and an optimization model was established. The interaction term of average cutting speed and tool cutting edge inclination angle significantly affected the peak cutting force, while the interaction term of cutting clearance and wedge angle had a significant effect on the cutting energy consumption. The optimal combination of cutting parameters was an average cutting speed of 0.5 m/s, cutting clearance of 1.4 mm, wedge angle of 25°, and tool cutting edge inclination angle of 20°. With this combination of parameters, the corresponding peak cutting force was 644.38 N, and the cutting energy consumption was 5.90 J, which was less than 5% relative error between each performance index and the theoretical optimized value.

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Section: Effect Of Interaction Terms On Branch Cuttingmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Multi-objective optimization of peak cutting force and cutting energy consumption in cutting of Caragana korshinskii branches

Gao

Tong

et al. 2022

BioRes

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“…The existing research on pseudostem return has mainly focused on sorghum (Sorghum bicolor), cotton (Gossypium sp. ), sugarcane (Saccharum officinarum), wheat (Triticum aestivum), and corn (Zea mays) (Chen et al, 2004;Igathinathane et al, 2009Igathinathane et al, , 2010Igathinathane et al, , 2011, including the exploration of the impact of the cutter roller speed, cutting mode, and moisture ratio on the cutting performance and power consumption (Bakeer et al, 2013;Duval et al, 2011;Ghahraei et al, 2011;Kakahy et al, 2013Kakahy et al, , 2014Mathanker et al, 2015) a banana pseudostem chopper, when compared with the chopper design used with other crops, must also consider the characteristics of a pseudostem with a large diameter, high moisture ratio, and strong plant fiber.…”

mentioning

confidence: 99%

Performance Evaluation of a Banana Pseudostem Chopper

Jun

Elkhouchlaa

et al. 2021

hortte

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The method of returning banana (Musa nana) pseudostems to the field can effectively maintain and improve the level of organic matter in the soil. In this article, we show that a small vertical-type banana pseudostem chopper can be used in banana plantations that do not need to be replanted. The aim of this study was to investigate the relationship among the blade type, cutting force, and cutting power. The effects of the blade roll angles, pitch angles, and feeding angles on the crushing qualification rate and crushing efficiency were obtained by comparing the decomposition characteristics of a banana pseudostem before and after crushing. The results showed that the arc-shaped blade exhibited the smallest cutting force and cutting power consumption. The maximum crush qualification rate and crush efficiency were obtained when the roll angle was 12°, the pitch angle was −5°, and the feeding angle was 5°. The weight reduction rate and average decomposition rate of the crushed pseudostem were 2.73 and 3.61 times greater than those of natural decomposition, respectively. The results can be used as a reference for the design and optimization of banana pseudostem choppers.

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Design and experimental study on pruning machine of Yunnan edible rose

Zhu

Zhang

Qian

et al. 2023

Sci Rep

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Edible rose is one of the main cash crops in Yunnan, China. Due to the high degree of lignification of rose stalks which is difficult to cut, and roses can only be pruned by hand after picking. Most of Yunnan Province is hilly landscape. Therefore, it is necessary to design an efficient small rose pruner for hills. Based on the experimental results of the physical and mechanical properties of rose stems, a simulation experiment of three different cutting methods was conducted to determine the optimal scheme. The results showed that single disc cutter is the best cutting method. An improved disc cutter with variable sliding angle is designed. In order to study the effects of the different structure parameters on the performance of the pruning machine and get the optimal combination of parameters, the orthogonal test was conducted. Forward speed, rotational speed of cutter, number of blades, cutting angle and knife-edge angle as factors, and the quality of pruning was selected as the evaluation index. The experiment results indicated that the working performance of machine was the highest when the number of blades was 6, rotational speed of cutter was 2000 rpm, cutting angle was 20°, knife-edge angle was 10°, forward speed was 0.5 m s−1. The average quality of pruning index, miss cutting index and tearing index were 90.6%, 5.68% and 3.72%, respectively. The designed machine can meet the agronomic requirements of Yunnan edible rose pruning operation. The research provides a reference for the design and extending of the pruning machine for edible rose.

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Effects of Knife Shapes and Cutting Speeds of a Mower on the Power Consumption for Pulverizing Sweet Potato Vine

Cited by 5 publications

References 12 publications

Multi-objective optimization of peak cutting force and cutting energy consumption in cutting of Caragana korshinskii branches

Multi-objective optimization of peak cutting force and cutting energy consumption in cutting of Caragana korshinskii branches

Performance Evaluation of a Banana Pseudostem Chopper

Design and experimental study on pruning machine of Yunnan edible rose

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