نتایج جستجو برای: rollers
تعداد نتایج: 868 فیلتر نتایج به سال:
The tangential contact forces that arise at the interface between the wheel of a railway vehicle and the rail provide all the traction, braking, and guidance required by the vehicle. These forces are the result of microslip or creepage and can become unstable exciting vibration of the wheel, particularly at frequencies corresponding to the wheel’s axial (and radial) modes. Although theories exi...
Roller drums make use of various shapes and their dynamic compaction effect is achieved by different kinds of dynamic excitation systems. The bearing capacity of layered soil constructions can be measured during the soil compaction process. The finite element method has been applied for dynamic analyses using elastic models. For the realistic simulation of the dynamic compaction process it is n...
The quality of mechanical processing the skin largely depends on parameters feeding to zone between working rolls. processed material at entrance must be free folds and wrinkles, i.e. one layer should enter Therefore, input into rolls is ensured with a rational selection profile guiding device for zone. A mathematical model was developed that allows authors determine leather area rollers, consi...
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