INVERSE DYNAMICS OF A TRANSLATION-ROTATION HYBRID PARALLEL ROBOT
Journal Title: ROMANIAN JOURNAL OF TECHNICAL SCIENCES - APPLIED MECHANICS - Year 2017, Vol 62, Issue 1
Abstract
Matrix relations for dynamics analysis of a spatial two-module hybrid parallel manipulator are established in this paper. Knowing the relative motions of two serially connected moving platforms, the inverse dynamics problem is solved based on a set of recursive explicit equations of parallel robots dynamics. Finally, compact results and graphs of simulation for the input forces and powers of six actuators are obtained.
Authors and Affiliations
Ştefan STAICU, ANDREI CRAIFALEANU
CALCULUS OF THE TORSOR OF INERTIA FORCES FOR A RIGID SOLID BODY IN GENERAL MOTION
The calculus of the torsor of the inertia forces for a rigid solid body in general motion is a very important matter for its next dynamic study. In other words if we aim to perform the dynamic survey of a rigid solid bod...
THIN FILMS FLOW DRIVEN BY GRAVITY AND A SURFACE TENSION GRADIENT
The flow of a thin layer on a horizontal plate in the lubrication approximation is considered. The flow is driven simultaneously by gravity and some gradients of surface tension. These gradients imply a non-zero tangenti...
GEOMETRIC TRANSFORMATIONS IN DESIGNING NEW MATERIALS
In this paper, an original idea of designing new materials is investigated. The property of Helmholtz equation to be invariant under geometric transformations is exploited to obtain new materials with inhomogeneous and a...
AN ANALYTICAL MODEL FOR THE STRUCTURE OF THE DETONATION WAVES. APPLICATION FOR HYPERSONIC PROPULSION
The gas flow field within an 1D normal detonation wave at variable specific heats and viscosity with temperature is considered. Such detonation waves appear in the so called air-breathing scramjet engines used at hyperso...
ON THE LINEARIZATION OF EXPERIMENTAL HYSTERETIC LOOPS
In this paper is presented a linearization method developed on the basis of the experimental hysteresis loop, by considering the most general case, when there is no mathematical model associated with the hysteretic behav...