The paper is dealing with the development of a new class of multipurpose multi-degrees-o-freedom (MDOF) Positioning Systems (PS) to be used as precision devices in a cell manufacturing desktop environment. Based on a structural investigation and systematization with imposed criteria, parallel mechanisms (PM) with 2dof actuators on the base was proposed. In its first modular design concept, each...

Deep neural networks (DNNs) have gained prominence in addressing regression problems, offering versatile architectural designs that cater to various applications. In the field of earthquake engineering, seismic response prediction is a critical area study. Simplified models such as single-degree-of-freedom (SDOF) and multi-degree-of-freedom (MDOF) systems traditionally provided valuable insight...

Periodic metafoundations have proven to inherit valuable properties from wave propagating in phononic periodic structures the very low-frequency regime. Therefore, finite locally resonant (LRMs) represent a novel type of seismic isolation for ultralow-frequency applications. In this context, it is still unknown impact that massive resonators with varying frequencies or devices hysteretic behavi...

In this paper, the author extends existing analysis methods for bowed string vibration to that involving dynamics of a soundbox and neck instrument. Almost all components instrument such as strings, nut, tuning pegs, neck, soundbox, bridge are physically modeled numerically analyzed by finite element method, thereby yielding an equation motion total multi-degree-of-freedom (MDOF) system. Then, ...

Non-smooth dynamics of a cantilever beam subjected to a transverse harmonic force and impacting onto a soft obstacle is studied. Upon formulating the equations of motion of the beam, proper attention is paid to identifying the mechanical properties of an equivalent single-degree-of-freedom (SDOF) piecewise linear impacting model. A multi-degree-of-freedom (MDOF) model of the impacting beam is a...

Dimensional analysis is applied to study the pounding response of two inelastic multidegree freedom (MDOF) structures under simplified earthquake excitation. The forces and deformations collision processes are simulated by adopting improved Kelvin model. characteristics MDOF described bilinear interstory resistance model, representations dimensionless impact force motion equation in process der...