Short Communications | Challenge Journal of Structural Mechanics

Experimental verification of blade elongation and axial rotor shift in steam turbines

Pavel Procházka


DOI: https://doi.org/10.20528/cjsmec.2016.09.021

Abstract


The experimental research of static and dynamic characteristics of rotating parts of turbomachines is a very important part of the design and verification of the machine parameters as well as optimization of their operational regimes. The described method of measuring dynamic and static characteristics, especially blade elongation and rotor axial shift, are based on the utilization of the non-contact magnetoresistive sensors developed in the Institute of Thermomechanics AS CR. These sensors exhibit positive properties for this purpose.


Keywords


blade elongation; axial rotor shift; steam turbines; magnetoresitive sensors

Full Text:

PDF

References


Procházka P, Vaněk F (2012). Non-contact methods of sensing vibrations of turbine blades. 10th International Conference on Vibrations in Rotating Machinery, Woodhead Publishing, 221-231.

http://dx.doi.org/10.1533/9780857094537.4.221

Procházka P, Vaněk F (2014). New methods of non-contact sensing of blade vibrations and de-flections in turbomachinery. IEEE Transactions on Instrumentation and Measurement, 63(6), 1583-1592.

http://dx.doi.org/10.1109/TIM.2013.2289580

Procházka P, Vaněk F (2015). Non-contact measurement of stationary characteristics of shrouded steam turbine blades under rotation. In: Proceedings of IEEE I2MTC, Pisa, 2084-2088.

http://dx.doi.org/10.1109/i2mtc.2015.7151604

---

Peer-review under responsibility of the organizing committee of ICEM17.


Refbacks

  • There are currently no refbacks.