A Force-Sensor-Based Method to Eliminate Deformation of Large Crankshafts during Measurements of Their Geometric Condition

This article describes an innovative method for eliminating deformation in large crankshafts during measurement of their geometric condition. The currently available techniques for measuring crankshaft geometry are introduced and classified according to their applicability and the method of measurem...

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Main Authors: Krzysztof Nozdrzykowski, Leszek Chybowski
Format: Article
Language:English
Published: MDPI AG 2019-08-01
Series:Sensors
Subjects:
Online Access:https://www.mdpi.com/1424-8220/19/16/3507
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author Krzysztof Nozdrzykowski
Leszek Chybowski
author_facet Krzysztof Nozdrzykowski
Leszek Chybowski
author_sort Krzysztof Nozdrzykowski
collection DOAJ
description This article describes an innovative method for eliminating deformation in large crankshafts during measurement of their geometric condition. The currently available techniques for measuring crankshaft geometry are introduced and classified according to their applicability and the method of measurement. The drawbacks of the methods have been identified and a solution to these problems has been proposed. The influence of the rigid support of a shaft on its deformation, and thus on the reduction in the accuracy of crankshaft geometry measurements, has also been investigated. The concept and main versions of the proposed measuring system with active compensation for shaft deflection, by means of actuators cooperating with force transducers monitoring the deflection of individual crank journals of a crankshaft being measured, have been presented and the flexible support control system has also been described. The problems relating to the operation of the control system have been furnished along with a way to solve them, including the issue of noise reduction in the signal from the force transducer and the influence of the controller parameters on the operation of the flexible support. The computer system that controls the flexible supports has been briefly characterized, and the performance of the prototype system and the model reference system has been compared. The results have shown that the system is able to effectively eliminate the deflection and elastic deformation of the crankshaft under the influence of its own weight.
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spelling doaj.art-80088397bfad4b258d1808d4d3e20f832022-12-22T04:01:00ZengMDPI AGSensors1424-82202019-08-011916350710.3390/s19163507s19163507A Force-Sensor-Based Method to Eliminate Deformation of Large Crankshafts during Measurements of Their Geometric ConditionKrzysztof Nozdrzykowski0Leszek Chybowski1Institute of Basic Technical Sciences, Faculty of Marine Engineering, Maritime University of Szczecin, Willowa 2-4, 71-650 Szczecin, PolandInstitute of Marine Propulsion Plants Operation Faculty of Marine Engineering, Maritime University of Szczecin, Waly Chrobrego 1-2, 70-500 Szczecin, PolandThis article describes an innovative method for eliminating deformation in large crankshafts during measurement of their geometric condition. The currently available techniques for measuring crankshaft geometry are introduced and classified according to their applicability and the method of measurement. The drawbacks of the methods have been identified and a solution to these problems has been proposed. The influence of the rigid support of a shaft on its deformation, and thus on the reduction in the accuracy of crankshaft geometry measurements, has also been investigated. The concept and main versions of the proposed measuring system with active compensation for shaft deflection, by means of actuators cooperating with force transducers monitoring the deflection of individual crank journals of a crankshaft being measured, have been presented and the flexible support control system has also been described. The problems relating to the operation of the control system have been furnished along with a way to solve them, including the issue of noise reduction in the signal from the force transducer and the influence of the controller parameters on the operation of the flexible support. The computer system that controls the flexible supports has been briefly characterized, and the performance of the prototype system and the model reference system has been compared. The results have shown that the system is able to effectively eliminate the deflection and elastic deformation of the crankshaft under the influence of its own weight.https://www.mdpi.com/1424-8220/19/16/3507large-size crankshaftsmetrologygeometry measurementsforce sensorelimination of deformationactive measurement system
spellingShingle Krzysztof Nozdrzykowski
Leszek Chybowski
A Force-Sensor-Based Method to Eliminate Deformation of Large Crankshafts during Measurements of Their Geometric Condition
Sensors
large-size crankshafts
metrology
geometry measurements
force sensor
elimination of deformation
active measurement system
title A Force-Sensor-Based Method to Eliminate Deformation of Large Crankshafts during Measurements of Their Geometric Condition
title_full A Force-Sensor-Based Method to Eliminate Deformation of Large Crankshafts during Measurements of Their Geometric Condition
title_fullStr A Force-Sensor-Based Method to Eliminate Deformation of Large Crankshafts during Measurements of Their Geometric Condition
title_full_unstemmed A Force-Sensor-Based Method to Eliminate Deformation of Large Crankshafts during Measurements of Their Geometric Condition
title_short A Force-Sensor-Based Method to Eliminate Deformation of Large Crankshafts during Measurements of Their Geometric Condition
title_sort force sensor based method to eliminate deformation of large crankshafts during measurements of their geometric condition
topic large-size crankshafts
metrology
geometry measurements
force sensor
elimination of deformation
active measurement system
url https://www.mdpi.com/1424-8220/19/16/3507
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AT krzysztofnozdrzykowski forcesensorbasedmethodtoeliminatedeformationoflargecrankshaftsduringmeasurementsoftheirgeometriccondition
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