Hot ring rolling is a highly nonlinear, unsteady-state and asymmetry process which is affected by many parameters. The friction coefficient between the ring ,the driver roll and the idle roll is one of the problems, which has significant effect on the quality of final product. In this study, the effect of these two parameters on hot ring rolling was investigated based on a 3D coupled-thermo mec...

High precision control of substrate tension is the premise and guarantee for producing high-quality products in roll-to-roll coating machine. However, complex relationships system make problems decoupling difficult to be solved, which has limited improvement accuracy Therefore, an ADRC parameters self-tuning strategy based on RBF neural network proposed improve this paper. Firstly, a global cou...

Experiments have been carried out at sub-critical Reynolds number to investigate free-to-roll motions induced by forebody and/or wings complex flow on a 30° swept back nonslender wings-slender body-model for static and dynamic (pitch-up) cases. For the dynamic (pitch-up) case it has been observed that roll amplitude decreases and lag increases with increase in pitching speed. Decrease in roll a...

The well­known energy­efficient method of crushing in a single­roll machine with smooth rolls, which complex stress state is created the destroyed piece, has significant disadvantage – low productivity due to limited degree crushing. In order increase productivity, machines are equipped stop blocks on roll, ensure forced supply material zone. maximum possible number should be installed and cond...

ROCK & ROLL is a deductive object-oriented database system that supports two languages, one imperative and the other deductive, both derived from the same object-oriented data model. As the languages share a common type system, they can be integrated without manifesting impedance mismatches, and thus programmers can conveniently exploit both deductive and imperative features in a single applica...