Use of Printed Sensors to Measure Strain in Rolling Bearings under Isolated Boundary Conditions

被引:2
作者
Bartz, Marcel [1 ]
Haeussler, Felix [2 ]
Halmos, Fabian [1 ]
Ankenbrand, Markus [2 ]
Juettner, Michael [1 ]
Roudenko, Jewgeni [3 ]
Wirsching, Sven [1 ]
Reichenberger, Marcus [3 ]
Franke, Joerg [2 ]
Wartzack, Sandro [1 ]
机构
[1] Friedrich Alexander Univ Erlangen Nurnberg FAU, Dept Mech Engn, Engn Design, Martensstr 9, D-91058 Erlangen, Germany
[2] Friedrich Alexander Univ Erlangen Nurnberg FAU, Inst Factory Automat & Prod Syst, Dept Mech Engn, Egerlandstr 7, D-91058 Erlangen, Germany
[3] TH Nurnberg Georg Simon Ohm, Inst Chem Mat and Prod Dev OHM CMP, Kesslerpl 12, D-90489 Nurnberg, Germany
关键词
rolling bearings; sensor-integrated machine elements; strain measurement; printed strain gauges; printed sensors;
D O I
10.3390/lubricants11100424
中图分类号
TH [机械、仪表工业];
学科分类号
0802 ;
摘要
The knowledge of the operating conditions in rolling bearings in technical applications offers many advantages, for example, to ensure a safe operation and to save resources and costs with the help of condition monitoring and predictive maintenance procedures. In many cases, it is difficult to implement sensors to measure the operating conditions of the rolling bearing, for reasons such as inaccessibility of the mounting position or non-compliance with installation space neutrality, which influences the sensor on the measuring point. Printed sensors using a digital deposition process, which can be used in very narrow design spaces, offer advantages in this respect. So far, these sensors have not been established in rolling bearings, so there is potential for technical application. This paper discusses the fundamental advantages and disadvantages as well as the challenges of the application, and it demonstrates the feasibility under isolated boundary conditions by applying a printed strain gauge sensor to the outer ring of a cylindrical roller bearing NU210 in an experimental setup to measure the strain under load. In this setup, the outer ring is deformed by 2 mm under an increasing radial load using a hydraulic press, and the strain is measured. Both a commercial reference sensor and a FE-simulation are used to validate the measurement. The results show that an implementation using printed sensors as a strain gauge works successfully. The resulting challenges, such as measuring strain gradients and printing on curved surfaces, are finally evaluated, and an outlook for further work is given.
引用
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页数:16
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