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RISOn a Successive Approximation Technique in Solving Some Control System Optimization Problems
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: It has been realized for some time that most realistic optimization problems defy analytical solutions in closed forms and that in most cases it is necessary to resort to judicious combinations ...
On Performance Losses in Some Adaptive Control Systems: I
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In controlling dynamic systems with unknown parameters and/or systems operating in unknown environment, the systems suffer due to the unknowness of pertinent parameter values, compared with ...
Successive Generation of Chebychev Approximation Solution
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Problems of filtering and prediction, which are significant parts of many control problems, can be treated as those of data-fitting, usually by the method of least squares. Then, the least-square ...
Optimal Control of Some Class of Imperfectly Known Control Systems
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The paper discusses optimal controls of processes with unknown constant parameters, where the processes are such that no measurements on the parameters are available during control periods. The ...
Reliability of System With Hysteresis Loop Characteristic Subjected to Earthquake Excitations
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The estimation of reliability of system subjected to earthquake excitations is an important problem for aseismic design. The reliability of such system should be evaluated in probabilistic manner. ...
Analysis of Thrust Bearings Operating in Turbulent Regime
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper relates to the turbulent motion in the lubricant fluid film with centrifugal effects and the lubrication theory for thrust bearings operating in turbulent regime. Using Prandtl’s ...
An Investigation of an Impact Vibration Absorber With Hysteresis Damping
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The dynamic vibration absorber is a device for reducing the vibration of many structures and mechanical equipment. It consists of a small mass which is attached to the primary vibrating system ...
Burr-Free Microblanking Using Piezoelectric Actuator
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Burr-free blanking requirements are strong; however, the thinner the product, the more difficult the burr-free blanking will be, due mainly to the control of the punch penetration depth. In ...
Torsional Strength of Glass Under Hydrostatic Pressure
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Solid and hollow cylinders of Pyrex glass were twisted under hydrostatic pressure up to 1000 kg/cm2 . The torsional strength of specimens coated with thin rubber films was increased by superposed ...
Inlet Reverse Flow Mechanism in Axial Flow Turbomachines With Neither Stall Nor Significant Radial Flow
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The cause of inlet reverse flow was studied in axial flow turbo machinery. A helical inducer, in which neither stall nor significant radial flow was observed, was selected as the experimental ...