Uncertainty in end-point tension measurement in wires subject to high-velocity impact

This paper analyses sensor performance requirements in measuring end-point tension (in magnitude and direction) in cables subject to high-velocity impact. The work may be viewed as a tool to analyse and design end-point tension measurement devices for cable-like systems when wire dynamics is very ra...

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Bibliographic Details
Published in:Measurement : journal of the International Measurement Confederation Vol. 16; no. 1; pp. 11 - 20
Main Authors: Da Forno, R., Saggin, B.
Format: Journal Article
Language:English
Published: Oxford Elsevier Ltd 1995
Elsevier
Subjects:
Dynamic force measurements
Exact sciences and technology
Fundamental areas of phenomenology (including applications)
Impact measurement
Load effect
Measurement and testing methods
Measurement methods and techniques in continuum mechanics of solids
Physics
Solid mechanics
Structural and continuum mechanics
Wire vibration
Dynamic force measurements
Load effect
Impact measurement
Wire vibration
Force measurement
Uncertain system
High speed
Theoretical study
Measuring methods
Impact tests
Wire
Traction
Monitoring
Mechanical shock
Cables
ISSN:0263-2241, 1873-412X
Online Access:Get full text
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Summary:This paper analyses sensor performance requirements in measuring end-point tension (in magnitude and direction) in cables subject to high-velocity impact. The work may be viewed as a tool to analyse and design end-point tension measurement devices for cable-like systems when wire dynamics is very rapid (> 10 kHz) and fully non-linear. Load effect, conversion time and ADC quantization effects are analysed in order to provide a full description of these uncertainty sources by simultaneous integration of the set of hyperbolic partial differential equations governing cable motion, and the set of ordinary differential equations describing the motion of the impacting object and sensor dynamics. Three-dimensional mathematical modelling of the wire is based on the theory of quasi-linear partial differential equations. Fully non-linear analysis of wire motion is thus accomplished without restrictions on displacement and deformation magnitudes. Numerical solution algorithms are based on the characteristics method. The main result is that the dynamic error due to sensor dynamics is the principal source of uncertainty. Moreover, the reduction of such uncertainty is not allowed by the actual force transducer devices, due to the high frequency response required.
ISSN:0263-2241
1873-412X
DOI:10.1016/0263-2241(95)00013-B