Effect of adding water to paspalum (<i>Paspalum dilatatum</i>) hay on the feed intake of sheep

Leibholz, Jane

doi:10.1017/s0021859600066284

Cited by 6 publications

(2 citation statements)

References 3 publications

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“…Based on the analysis of the design and operation of vertical-spindle cotton harvesting machines, as well as numerous studies aimed at improving their efficiency, it can be concluded that cotton fibers are not captured by the spindle surface during operation in the absence of compression force, even at high spindle activity [9,14,15]. Figure 1 shows the orientation schemes of vertical spindles towards cotton bolls using their active surfaces.…”

Section: Methodsmentioning

confidence: 99%

Enhancing cotton harvesting efficiency through elliptical drum design: a comparative analysis of spindle performance in the working area

Ravutov,

Rizayev,

Rajapbaev

2023

IOP Conf. Ser.: Earth Environ. Sci.

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This article describes improving the working conditions of the vertical spindle cotton harvester in the cotton collection zone (working area). A comparative analysis of the performance of spindles in standard and elliptical drums in the working area was conducted. A significant increase in the gripping capacity of the spindles was observed due to their elliptical trajectory, resulting in an increase in the contact surface of the spindles with the cotton plants and the number of spindles participating in the collection process. The main criteria for evaluating the gripping capacity of spindles were the simultaneous activity of the spindles and the compressive forces exerted by the drums on the cotton bolls during their presence in the working area. The boundary positions of the spindles, within which they have gripping capacity, were determined, allowing the development of a methodology for determining the time of spindle presence in the working area for both elliptical and standard drums in an actively oriented state. The results of a numerical experiment comparing the time of spindle presence in the collection zone on elliptical and standard drums showed the ability to control the contact time of the spindles with the cotton bolls by varying the geometric parameters of the elliptical drum.

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Section: Methodsmentioning

confidence: 99%

Enhancing cotton harvesting efficiency through elliptical drum design: a comparative analysis of spindle performance in the working area

Ravutov,

Rizayev,

Rajapbaev

2023

IOP Conf. Ser.: Earth Environ. Sci.

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“…To study the dimensions and shape of the guiding channel, we will use the "GeoGebra" program, which has now gained wide distribution in the field of mathematical modeling and is successfully applied to study technical systems and mechanisms [8][9][10][11][12]. The program allows accelerating the modeling of technical systems, visually observing the final result by varying the geometric dimensions of the system elements.…”

Section: Methodsmentioning

confidence: 99%

Synthesis of the contour and dimensions of the guiding channel of an elliptical drum according to the operation conditions and kinematic regimes

Ravutov,

Ibragimov,

Shokirov

et al. 2023

IOP Conf. Ser.: Earth Environ. Sci.

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The article is devoted to the synthesis of the mechanism of an elliptical drum of a vertically spindle drum, which increases the completeness of the collection and the quality of the harvested raw cotton. In particular, it developed a methodology for substantiating the profile and dimensions of the guide track, which ensures the movement of the spindles along an elliptical trajectory. At the same time, the profile and dimensions of the guide track are considered as a function of the trajectory and kinematic modes of the spindle. It is shown that the trajectory of movement and kinematic modes of the center of the guide roller can be the basis for choosing the profile and basic geometric dimensions of the guide track. The trajectory of the center of the guide roller at its different positions relative to the center of the spindle, moving along an elliptical trajectory, is determined using the GeoGebra program, which is popular in the mathematical modeling environment, and its kinematic parameters are determined by constructing hodographs of the speed of the center of the guide roller.

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1990

Forage in Ruminant Nutrition

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Effect of adding water to paspalum (Paspalum dilatatum) hay on the feed intake of sheep

Cited by 6 publications

References 3 publications

Enhancing cotton harvesting efficiency through elliptical drum design: a comparative analysis of spindle performance in the working area

Enhancing cotton harvesting efficiency through elliptical drum design: a comparative analysis of spindle performance in the working area

Synthesis of the contour and dimensions of the guiding channel of an elliptical drum according to the operation conditions and kinematic regimes

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