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Finite Duration Impacts With External Forces
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This work considers the effect of external forces during finite duration collisions using an incremental model of impact. The deformation of the “rigid” body is modeled through an elastic element ...
A New Regularization of Coulomb Friction
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: We present a new regularization of Coulomb’s law of friction that permits a straight-forward incorporation of frictional forces within existing numerical simulations. Similar to existing regularizations, ...
Nonlinear Stability of Thermoelastic Sliding Contact
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A model for sliding contact of a thermoelastic rod is considered and is subjected to a multiple scales analysis to uncover its nonlinear behavior near a neutrally stable state. The analysis ...
Using Series-Series Iwan-Type Models for Understanding Joint Dynamics
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In many structures of great engineering importance, such as air frames or jet engines, the primary source of vibration damping is often just the frictional damping of interfaces associated with ...
Special Issue on Energy Harvesting
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: With advances in low-power electronics, the cost and power requirements of many electronic devices have dropped significantly in recent years, thereby enabling their widespread deployment in, for ...
Energy Harvesting From Impulsive Loads Using Intentional Essential Nonlinearities
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Energy harvesting devices designed with intentional nonlinearities offer the possibility of increased performance under broadband excitations and realistic environmental conditions. This work considers ...
Comparing Linear and Essentially Nonlinear Vibration-Based Energy Harvesting
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This work considers the performance of a resonant vibration-based energy harvesting system utilizing a strongly nonlinear attachment. Typical designs serving as the basis for harvesting energy ...
Effective Stiffening and Damping Enhancement of Structures With Strongly Nonlinear Local Attachments
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: We study the stiffening and damping effects that local essentially nonlinear attachments can have on the dynamics of a primary linear structure. These local attachments can be designed to act ...
Experimental Testing and Numerical Simulation of a Six-Story Structure Incorporating Two-Degree-of-Freedom Nonlinear Energy Sink
Publisher: American Society of Civil Engineers
Abstract: The nonlinear energy sink (NES) is a fully passive attachment used to rapidly dissipate a significant portion of energy induced in a linear primary structure to which it is attached. In this study, the performance of a ...