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RISNonlinear Model Predictive Control of Axial Piston Pumps
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Variable displacement axial piston units are the core components of many hydrostatic and hydraulic hybrid drive trains. Therein, the fast and accurate control of the swash plate angle, utilizing the full possible dynamics ...
Hamilton's Principle for Material and Nonmaterial Control Volumes Using Lagrangian and Eulerian Description of Motion
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The standard form of Hamilton's principle is only applicable to material control volumes. There exist specialized formulations of Hamilton's principle that are tailored to nonmaterial (open) control volumes. In case of ...
Dynamical Models of the Camber and the Lateral Position in Flat Rolling
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In flat rolling, the lateral position of the product in the rolling mill and the camber (curvature of the product centerline seen in top view) are key process variables. We explore how their evolution can be analytically ...
Hamilton's Principle for Material and Nonmaterial Control Volumes Using Lagrangian and Eulerian Description of Motion
Publisher: American Society of Mechanical Engineers (ASME)
Abstract: The standard form of Hamilton's principle is only applicable to material control volumes. There exist specialized formulations of Hamilton's principle that are tailored to nonmaterial (open) control volumes. In case of ...
Model-Based Dynamic Calibration of a Multi-Actuator Gap Leveler for Heavy Plates
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A novel method to calibrate the work rolls of a precision leveler for heavy plates is proposed. During the leveling process, a sequence of bending steps is imposed on the plate by the work rolls of the leveler to eliminate ...
State of Charge Estimator Design for a Gas Charged Hydraulic Accumulator
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The gas charged hydraulic accumulators under consideration are used as energy storage devices in automotive hydraulic hybrid systems. The knowledge of the state of charge (SOC) is of utmost importance for an efficient ...
Model Based Condition Monitoring of an Electro Hydraulic Valve
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In many hydraulic systems, it is difficult for human operators to detect faults or to monitor the condition of valves. Based on dynamical models of an electrohydraulic servo valve and a hydraulic positioning unit, we develop ...
Lateral Forces in Rolling-Cut Shearing and Their Consequences on Common Edge Defects
Publisher: American Society of Mechanical Engineers (ASME)
Abstract: This paper deals with the detailed analysis of the lateral process forces in rolling-cut shearing of heavy steel plates and their impact on edge defects. Rolling-cut shearing is still the most common method of heavy-plate ...
Lateral Forces in Rolling-Cut Shearing and Their Consequences on Common Edge Defects
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper deals with the detailed analysis of the lateral process forces in rolling-cut shearing of heavy steel plates and their impact on edge defects. Rolling-cut shearing is still the most common method of heavy-plate ...
Online Parameter Estimation for Adaptive Feedforward Control of the Strip Thickness in a Hot Strip Rolling Mill
Publisher: American Society of Mechanical Engineers (ASME)
Abstract: A new adaptive disturbance feedforward control strategy of the strip thickness in a hot strip rolling mill with online parameter estimation is proposed. The feedforward control strategy makes use of the measured strip ...