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Heavy lift crane vessels play an important role in offshore installations. Previous studies have shown that position control systems for these vessels can cause unstable positioning behavior during offshore construction assignments under specific conditions, e.g., change of environmental loads. Some control methods, such as crane force feedforward to the controller or the estimator, have been developed...
In the paper, by analyzing burst-tire car of the main factors, and simplified to a linear system, the establishment of two degrees of freedom burst-tire vehicle dynamic instability model. This paper research the rolling radius of the burst-tire wheel of the burst-tire after the impact of the direction instability, and then analyzes the changes in driving posture as a burst-tire caused by load transfer,...
In this article we recast the Dahl, LuGre, and Maxwell-slip models as extended, generalized, or semilinear Duhem models. We classified each model as either rate independent or rate dependent. Smoothness properties of the three friction models were also considered. We then studied the hysteresis induced by friction in a single-degree-of-freedom system. The resulting system was modeled as a linear system...
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