Abstract
This article demonstrates the results of experimental research one of the pulsators. Its main difference from others is a pneumatic electromagnetic pulsator in combination with a collector. Therefore, this article describes in detail the process of studying the pulsator. The planned experiment was carried out on by Factorial experiments with multiple factors. The influence of factors (the ripple frequency n, the milk ejection q and the ratio between strokes t/T) on the vacuum pressure in the inter wall chamber of teat cups was studied. The regression equation of the dependence response criterion on factors is modeled. This dependence is demonstrated graphically. Also there is a contour graph which is for more detailed information.
Highlights
To date, one of the major innovations on dairy farms around the world is the provision of adaptive milking (De Koning, 2010)
The duration of milking time will decrease by 25% when changing the ratio between strokes from 50:50 to 70:30 with a constant ripple frequency of 1 Hz and the vacuum pressure in the system 42 kPa, but at a vacuum pressure of 51 kPa milking time is reduced by only 5% (Thomas et al, 1993)
The regression equation that models the change in the vacuum pressure in natural factors will look like:
Summary
One of the major innovations on dairy farms around the world is the provision of adaptive milking (De Koning, 2010). The main criterion of researchers is to adapt the milking process to the animal as much as possible. The adaptation of the system to the animal is influenced by vacuum pressure and ripple frequency, they determine the softness and speed of milking (Penry et al, 2016). The duration of milking time will decrease by 25% when changing the ratio between strokes from 50:50 to 70:30 with a constant ripple frequency of 1 Hz and the vacuum pressure in the system 42 kPa, but at a vacuum pressure of 51 kPa milking time is reduced by only 5% (Thomas et al, 1993). When conducting an experiment of certain components, the milking machine, the main attention is paid to the curve of milk ejection (Tancin et al, 2006). Researchers (Mein & Reinemann, 2007) state that the ripple frequency, the ratio between the strokes and vacuum level affect dominant on the milk ejection
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