Preferencje help
Polish version English version Język
Widoczny [Schowaj] Abstrakt
Liczba wyników

Znaleziono wyników: 4

Liczba wyników na stronie
Pierwsza strona wyników Pięć stron wyników wstecz Poprzednia strona wyników Strona / 1 Następna strona wyników Pięć stron wyników wprzód Ostatnia strona wyników

Wyniki wyszukiwania

Wyszukiwano:
w słowach kluczowych:  vibration level
help Sortuj według:

help Ogranicz wyniki do:
Pierwsza strona wyników Pięć stron wyników wstecz Poprzednia strona wyników Strona / 1 Następna strona wyników Pięć stron wyników wprzód Ostatnia strona wyników
1

Relations between top-plate filing angle values of cutting chains and chain saw vibration levels

100%
Stempski W., Jablonski K., Wegner J.
Acta Scientiarum Polonorum. Silvarum Colendarum Ratio et Industria Lignaria
|
2010
|
tom 09
|
nr 2
31-39
The investigations were conducted on 21 BP Oregon cutting chains, with five top-plate filing angle values: 20°, 25°, 30°, 35° and 40°. The chain saw was a 254 Husqvarna model with an Oregon 15” bar. The vibration measurements were conducted while cross-cutting pine logs, and they were performed according to the PN-91/N-01352 [1991] standard. For each of the angles tested 36 measurements were carried out (18 measurements on the front handle and 18 on the rear one). The investigations proved statistically significant differences in vibration levels between different top-plate filing angle values. Apart from that, significant differences were found between vibration levels on different handles and in different measurement axes (x, y, z). The lowest vibration levels were found with chains with extreme top-plate filing angles (20° and 40°). Statistically significant relations between top-plate filing angles and vibrations levels were also found for the front handle in the x and z axes and for the rear handle in the x and y axes.
2

Effect of the edge geometry in a cutting chain on the chain saw vibration level

100%
Stempski W., Jablonski K., Wegner J.
Acta Scientiarum Polonorum. Silvarum Colendarum Ratio et Industria Lignaria
|
2010
|
tom 09
|
nr 1
Vibration levels were measured while cross-cutting pine wood logs. In the experiment five chisel type cutting chains, with a 0.325” pitch were used. The chains differed in the top-plate filing angle which had the following values: 20º, 25º, 30º, 35º and 40º. The cross-cutting was performed by a chain saw operator. The measurements were carried out on the front and rear handles in the x, y and z axes. There were 18 measurements for each top-plate filing angle on each of the handles. The Robotron M1300 meter was used. Considerably higher vibration levels were observed on the rear handle. The effect of the top-plate filing angle on the mechanical vibrations was statistically significant. The correlation between the angle and the vibration value showed a weak relation, but it was statistically significant in those cases in which it appeared.
3

Rate of processing and vibration level in the electric chain saw

75%
Gorski J., Skarzynski J.
Annals of Warsaw Agricultural University. Agriculture
|
2000
|
nr 36 Agric.Forestry Eng.
35-41
4
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
Content available

Effect of chain saw pitch on vibration level on the internal combustion chain saw handles during cross cutting of wood

75%
Skarzynski J., Pietrkiewicz P.
Annals of Warsaw University of Life Sciences - SGGW. Agriculture
|
2013
|
nr 61 Agric.Forest Eng.
Effect of chain saw pitch on vibration level on the internal combustion chain saw handles during cross cutting of wood. Results of investigations on the efect of chain saw pitch on the vibration level recorded on the internal combustion chain saw handles are presented. The investigations can contribute to learning of factors that intensify vibrations existing during cross cutting of wood with the use of chain saws of different pitch values; they can be also a source of practical instructions for the sawmen-operators of internal combustion chain saws to reduce the hazard of mechanical vibrations. Basing on the results of investigations one can find that the chain saw pitch affects vibration level on the machine handles; it increases along with an increase in the pitch.
Pierwsza strona wyników Pięć stron wyników wstecz Poprzednia strona wyników Strona / 1 Następna strona wyników Pięć stron wyników wprzód Ostatnia strona wyników
JavaScript jest wyłączony w Twojej przeglądarce internetowej. Włącz go, a następnie odśwież stronę, aby móc w pełni z niej korzystać.