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1
Wyniki badań stanów pracy silnika spalinowego w warunkach rzeczywistego użytkowania ciągnika gąsienicowego
100%
Marecka-Chłopek E. , Budny E. , Chłopek Z. , Chłosta M.
Zeszyty Naukowe Instytutu Pojazdów / Politechnika Warszawska
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2008
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tom z. 2/69
101-109
PL
Dokonano formalnego opisu stanów pracy silnika spalinowego. Przedstawiono wyniki badań empirycznych silnika spalinowego w warunkach rzeczywistego użytkowania ciągnika gąsienicowego. Przeanalizowano stany pracy badanego silnika spalinowego. Badano statyczne stany pracy silnika we współrzędnych: sterowanie silnika - prędkość obrotowa.
EN
One made the formal description the work states of internal combustion engines. The empiric research results of the work states of internal combustion engine in the conditions of the caterpillar tractor use were in the paper presented. One analysed work states of the internal combustion engine. One investigated static states of the engine work in coordinates: the engine steering - the engine speed.
2
Content available The research of the dynamic load of the power train of the caterpillar tractor Chetra 6C-315
88%
Shekhovtsov V. , Sokolov-Dobrev N. , Shevtchuk V. , Liashenko E.
Journal of KONES
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2011
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tom Vol. 18, No. 1
535-546
EN
The paper describes the developed dynamic model of the caterpiller's power transmission. Its advantage is the integrated dimensional model of caterpillar propeller. Animated motion modelling provides the formation and transfer of kinematic and dynamic disturbances from caterpillar chassis, causing the greatest loadings of the power circuit sections. The principle of power transmission mathematical model’s differential equations forming is described. Result of the model's computational research is a set of oscillograms of the drive wheel’s torque changing for different operating modes. The values of power transmission masses' natural frequencies are obtained. The research of the nature of transmission sections' dynamic loading by torsional vibrations, that arise and spread on the shafting, when the linked track rewinds, is carried out. The diagrams show that local maximums of dynamic coefficients characterize the regimes with high hook load. The increase of torques for these sections happens because of approximation of the peculiar frequency of the system and the frequency of one of the harmonic components of stimulating actions. At this peak, value of the oscillation belongs to the masses, the partial frequencies of which are closest to the frequencies to the stimulation actions. Dynamic load of such sections is quite high. The material of these sections often gets fatigue damage, which can lead to breakdown. The analysis of the diagrams, made for basic operation speeds between 1,0 – 5,5 m/sec showed, that maximal peak values of dynamic coefficients appear on sections between 10 and 59 masses in the transmission. Maximal dynamic load of these sections appear at hook load from 0 to 40 kN.
3
Content available Decreasing of dynamic loading of tractor’s powertrain by means of change of reactive element torsional stiffness
88%
Kalmikov A. V. , Sokolov-Dobrev N. S. , Shekhovtsov V. V. , Ljashenko M. V. , Potapov P. V.
Journal of KONES
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2015
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tom Vol. 22, No. 1
127--134
EN
This article describes original method proposed by authors that provides decreasing of dynamic loading of tractor’s powertrain by means of change of reactive element torsional stiffness. In tracked vehicles one of the most loaded elements is final drive unit which loaded by high dynamic modes. In tractor Chetra 6C-315, final drive is epicyclic where stopped element is ring gear. Authors propose using of strictly resilient (5 degrees in forward-backward direction) mount of ring gear instead of stiffening. Design study of installation between hub and gear ring that connects drum and crown gear, of the resilient metal plates pack was performed. This pack is kind of elastic coupling. Resilient packets of coupling sustain loads and smooth over peak dynamic loads and after elastic deformation of these packets rigid coupling between hub and coupling crown is provided at contact surfaces of skewed stops of hub and crown. To analyse efficiency of proposed method of dynamic loadings decreasing of powertrain elements three-dimensional model of powertrain was created in “Universal Mechanism”. In addition, solid model of caterpillar mover was created in the same software for analysis of influence on powertrain loadings of complex of kinematic and dynamic factors influencing forming of torque on driving sprockets. This article presents results of modelling of loading processes in powertrains elements with elastic coupling and without it during longitudinal motion at various speeds and in turns with various radii. Results show that elements dynamic loading at high loading dynamic modes in case of installed coupling is decreased by 20-30%.
4
Content available The computational research of the dynamic load of the power train sites of the caterpillar tractor
88%
Shehovtsov V. , Sokolov-Dobrev N. , Shevtchuk V. P. , Ljashenko M. V. , Kalmikov A.
Archiwum Motoryzacji
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2013
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tom Nr 2
79--91, 195--208
EN
The paper describes the developed dynamic model of the caterpiller’s power transmission. Its advantage is the integrated dimensional model of caterpillar propeller. Animated motion modeling provides the formation and transfer of kinematic and dynamic disturbances from caterpillar chassis, causing the greatest loadings of the power circuit sections. The principle of power transmission mathematical model’s differential equations forming is described. result of the model’s computational research is a set oscillograms of the drive wheel’s torque changing for different operating modes. The values of power transmission masses’ natural frequencies are obtained. The research of the nature of transmission sections’ dynamic loading by torsional vibrations, that arise and spread on the shafting, when the linked track rewinds, is carried out.
5
Content available remote The Computational Research of the Dynamic Load of the Power Train Sites of the Caterpillar Tractor
75%
Shehovtsov V.
Archiwum Motoryzacji
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2013
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tom Nr 1
85-97
EN
The paper describes the developed dynamic model of the caterpiller's power transmission. lts advantage is the integrated dimensional model of a caterpillar propeller. Animated motion modeling provides the formation and transfer of kinematic and dynamic disturbances from caterpillar chassis, which cause the greatest loadings of the power circuit sections. The principle of power transmission is described as it forms in a mathematical model's differential equations. The result of the model's computational research is a set of oscillograms of the drive wheel's torque changes for different operating modes. The values of power transmission masses' natural frequencies are obtained. The research of the nature of transmission sections' dynamic loading by torsional vibrations, that arise and spread on the shafting, when the linked track rewinds, has been carried out.
6
Wpływ sztywności więzi z ramą obudów elementów układu napędowego ciągnika gąsienicowego na obciążenie odcinków przekładni mocy
63%
Godżajew Z. A. , Sokołow-Dobriew N. S. , Szechowcow W. W. , Szewczuk W. P. , Liaszenko M. W.
Zeszyty Naukowe Instytutu Pojazdów / Politechnika Warszawska
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2008
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tom z. 4/71
61-79
PL
W artykule są rozpatrzone zagadnienia analizy wpływu bezwładnościowych parametrów obudów i sztywności ich połączeń na obciążenie odcinków układu napędowego ciągnika gąsienicowego przy dynamicznym oddziaływaniu obciążeń eksploatacyjnych.
EN
In article questions of the analysis of influence of inertial parameters of body details and rigidity of their communications on loading of sections of a power transmission of a caterpillar tractor at dynamic action of operational loadings are axamined.
7
Selected aspects of wear of the caterpillar drive parts
63%
Gardynski L.
Teka Komisji Motoryzacji i Energetyki Rolnictwa
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2005
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tom 05
8
The possibilittes of caterpillar tractor towards energy-sowing
63%
Yakovenko A. , Pietrov L. , Sosnowski S.
Teka Komisji Motoryzacji i Energetyki Rolnictwa
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2005
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tom 05
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