MODELLING OF A GLASS GATHERER ROBOT ARM WITH A FRICTIONAL DAMPER
Journal Title: Journal of Machine Engineering - Year 2018, Vol 18, Issue 4
Abstract
A numerical model of a friction damper used for damping vibration in glass gatherer robots was described. The damper with a lance was modelled using finite elements. Primary natural frequency of the system was determined. Numerical calculations were performed to determine the best operating parameters of the damper for excitations using a impulse of a force. Results of the damping decrement calculations for the friction damper model with a constant coefficient of friction and for the model, in which the coefficient of friction varied depending on the sliding velocity and the normal pressure occurring at the contact surfaces of the damper’s friction rings, were presented. Based on numerical simulations, the values of relative displacements between the damper’s friction rings were also determined.<br/><br/>
Authors and Affiliations
Marek STEMBALSKI, Pawel PRES, Waclaw SKOCZYNSKI, Paweł TUREK
Cutting layer and cutting forces in a 5-axis milling of sculptured surfaces using the toroidal cutter
The purpose of this article was to evaluate the significance of the influence of five- axis orientation parameters of a toroidal cutter axis and the geometrical parameters of the machined sculptured surface on the inters...
IN-PROCESS CONTROL WITH A SENSORY TOOL HOLDER TO AVOID CHATTER
Hydro-, steam- and gas- turbines, aircraft components or moulds are milled parts with complex geometries and high requirements for surface quality. The production of such industry components often necessitates the use of...
DESIGN APPROACH FOR HIGH-DYNAMIC PLANAR MOTION SYSTEMS BASED ON THE PRINCIPLE OF KINEMATICALLY COUPLED FORCE COMPENSATION
Machine tools’ feed dynamics are usually limited in order to reduce excitation of machine structure oscillations. Consequently, the potential increase in productivity provided by direct drives, e.g. linear motors, cannot...
COMPARISON OF CLASSIFICATION ABILITY INDICES OF PARAMETERS CHARACTERIZING THE STEREOMETRIC FEATURES OF TECHNICAL SURFACES
The study examined the relationship between the values of two indices evaluating the classification capacity of parameters characterizing the stereometric features of technical surfaces. The values of 83 3D parameters ch...
THE EFFECT OF CHANGES IN DEPTH OF CUT ON SURFACE ROUGHNESS IN MACHINING OF AISI 316 STAINLESS STEEL
Currently, process optimization is an important part of design of CNC toolpath, allowing overall process improvement in accordance to a range of criteria. Available CAE software for CNC toolpath optimization works only b...