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RISCharacterization of Real Eigenvalues in Linear Viscoelastic Oscillators and the Nonviscous Set
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In structural dynamics, energy dissipative mechanisms with nonviscous damping are characterized by their dependence on the timehistory of the response velocity, which is mathematically represented by convolution integrals ...
Two Natural Dexterity Indices for Parallel Manipulators: Angularity and Axiality
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper introduces two novel dexterity indices, namely, angularity and axiality, which are used to estimate the motion sensitivity of the mobile platform of a parallel manipulator undergoing a general motion involving ...
Development of an Integrated Approach to the Design of Reconfigurable Micro/Mesoscale CNC Machine Tools
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In the present, the technology related to the micro/meso manufacturing is promising as a key enabling technology for maximizing high value manufacturing. This paper addresses a new methodology to design reconfigurable ...
Reconfigurable Mechanisms From the Intersection of Surfaces
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The method of intersection of surfaces generated by kinematic dyads is applied to obtain mechanisms that are able to shift from one mode of motion to another. Then a mobility analysis shows that the singularities of the ...
Impact Behavior of Hybrid Glass/Carbon Epoxy Composites
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The high velocity impact performance in hybrid woven carbon and S2 and E glass fabric laminates manufactured by resin transfer molding (RTM) was studied. Specimens with different thicknesses and glassfiber content were ...
Wear of Form Taps in Threading of Steel Cold Forged Parts
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Tapping of blind or through holes is a common operation in several applications in the automotive, windmill towers, general machinery, and other industrial sectors. On the other hand, tapping is usually performed at the ...
Optical Analysis of a Two Stage XX Concentrator for Parametric Trough Primary and Tubular Absorber With Application in Solar Thermal Energy Trough Power Plants
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A new symmetric nonimaging parametric trough collector (PmTC) for an evacuated circular receiver is proposed having an absorber diameter of 70 mm similar to the LS3/Eurotrough absorber one, and a circular secondary. The ...
Optical Analysis of a Two Stage XX Simultaneous Multiple Surface Concentrator for Parametric Trough Primary and Flat Absorber With Application in Direct Steam Generation Solar Thermal Plants
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Today most commercial parabolic trough collector (PTC) solar power plants make use of the wellknown LS3/Eurotrough optics. The PTC has a concentration ratio relative to the maximum thermodynamic limit equal to 0.31. In ...
Velocity and Force Observers for the Control of Robot Manipulators
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In this paper, position/force tracking control for rigid robot manipulators interacting with its environment is considered. It is assumed that only joint angles are available for feedback, so that velocity and force observers ...