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Robust force and torque measurements by integrated sensors in hollow shafts

Krech, Martin and Groche, Peter (2017):
Robust force and torque measurements by integrated sensors in hollow shafts.
In: SENSOR 2017 - 18th International Conference on Sensors and Measurement Technology, Nürnberg, 30.05. - 01.06.2017, [Conference or Workshop Item]

Abstract

This contribution presents a manufacturing method for producing hollow shafts with integrated sensors. An incremental forming process is used to join a deformation sensing element in a tubular part during forming. A mechanical pre-tension is created to ensure a high linearity. The sensor signals are utilized during manufacturing to monitor and control the processes. Control and monitoring strategies are derived in order to achieve a constant quality of the sensory structures. In order to design the joining process a numerical model is used. The resulting pre-tension force could be predicted numerically with a deviation of 30 for aluminum and 6 for the steel tubes. A 32 x 4 mm hollow shaft is produced and characterized with ±1.2 kNm on a torque testing machine. A demonstrator with an integrated miniature measurement amplifier illustrates the high potential of measuring at the inside of rotating or moving parts to exploit inaccessible measurement regions.

Item Type: Conference or Workshop Item
Erschienen: 2017
Creators: Krech, Martin and Groche, Peter
Title: Robust force and torque measurements by integrated sensors in hollow shafts
Language: English
Abstract:

This contribution presents a manufacturing method for producing hollow shafts with integrated sensors. An incremental forming process is used to join a deformation sensing element in a tubular part during forming. A mechanical pre-tension is created to ensure a high linearity. The sensor signals are utilized during manufacturing to monitor and control the processes. Control and monitoring strategies are derived in order to achieve a constant quality of the sensory structures. In order to design the joining process a numerical model is used. The resulting pre-tension force could be predicted numerically with a deviation of 30 for aluminum and 6 for the steel tubes. A 32 x 4 mm hollow shaft is produced and characterized with ±1.2 kNm on a torque testing machine. A demonstrator with an integrated miniature measurement amplifier illustrates the high potential of measuring at the inside of rotating or moving parts to exploit inaccessible measurement regions.

Divisions: 16 Department of Mechanical Engineering > Institut für Produktionstechnik und Umformmaschinen (PtU)
DFG-Collaborative Research Centres (incl. Transregio) > Collaborative Research Centres > CRC 805: Control of Uncertainty in Load-Carrying Structures in Mechanical Engineering
DFG-Collaborative Research Centres (incl. Transregio) > Collaborative Research Centres
16 Department of Mechanical Engineering
DFG-Collaborative Research Centres (incl. Transregio)
Event Title: SENSOR 2017 - 18th International Conference on Sensors and Measurement Technology
Event Location: Nürnberg
Event Dates: 30.05. - 01.06.2017
Date Deposited: 07 Jun 2017 06:35
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