Linear Motion Profile Generation using a Danaher Thomson Actuator with Ball Screw Drive
Journal Title: Romanian Journal of Acoustics and Vibration - Year 2014, Vol 11, Issue 2
Abstract
A Danaher Thomson linear actuator with ball screw drive is used here to generate vibrations in the 1-3 Hz frequency range. More precisely, the linear motion profile corresponding to the vertical displacements induced under the driver seat by the car ride on some real random road profile was successfully generated using this Danaher Thomson actuator. Also was generated a simplified linear motion profile corresponding to the sum of three sinusoids: a first sinusoidal vibration with A1=2cm amplitude and f1=1 Hz frequency, a second sinusoid with A2=1.5cm amplitude and f2=1.5 Hz frequency and a third sinusoid with A3=1cm amplitude and f3=2 Hz. The actuator is commanded in position (“position mode”), but also in acceleration; for each elementary motion from one position to another, the user provides the limitations in velocity and acceleration/deceleration. The paper presents a simple method to automatically compute the uniform acceleration, maximum velocity and uniform deceleration needed for an elementary motion, taking into account the importance of increasing as much as possible this lifetime expectancy of the ball screw drive.
Authors and Affiliations
Dan DUMITRIU, Daniel BALDOVIN, Emil VIDEA
Keywords
Related Articles
- EP ID EP158996
- DOI -
- Views 57
- Downloads 0
Dynamic Hydraulic Dampers for Earthquake Isolated Structural Systems
This paper presents some solutions on hydraulic devices such as linear motors with direct and reverse reaction with the stabilizing role of building movement under the earthquake action. It emphasizes the possibilities o...
Torsional elastic waves in tubes. Improved dispersion curves
In the last decades, there is an increasing interest in locating defects in pipeline from the chemical and nuclear industries using ultrasonic torsional waves. In this paper, the authors are presenting a theoretica...
Some Aspects Regarding the Transition from Beam to Plate Behavior of Vibrating Structures
The paper introduces a new vision about the vibrational behavior of beams and plates, aiming to show the correlation between vibration modes which nowadays are considered of different types. An analysis was performed by...
ACTIVE NOISE CONTROL (ANC)
Dynamic Design of the Foundation of Reciprocating Machines for Offshore Installations in Persian Gulf
The installation of large and heavy reciprocating machines on offshore constructions demands specific requirements in the design of the foundation with respect to vibrations. Because the use of those piston engines impli...