Mitigating the Effect of Electromagnetic Interference on the Measurement Equipment of a Rotor Test Rig

Institute

Lehrstuhl für Hubschraubertechnologie (TUM-ED)

Type

Bachelor's Thesis / Semester Thesis /

Content

experimental /  

Description

The MERIT Test Rig (pictured) is a Whirl Tower designed specifically for dynamic stall investigations in a rotating system. Due to the unpredictability and harsh loads experienced during dynamic stall, the motor is overscaled at 85 kW, to ensure it can maintain a constant RPM value and does not get damaged by unexpected aerodynamic occurrences. However, this means that the electromagnetic field surrounding the motor, as well as the cable supplying electricity, has a measureable impact on the quality of the data from the sensory equipment. This is most drastically seen in the force gauges, wherein even just supplying the power to the motor at 0 rpm causes large amplitudes to be seen in the measured signal. Some previous work has been conducted to establish which options would be available to mitigate this issue, which you would be building upon, finding out which of the theoretical options are best to practically implement.

Project Outline and Milestones

- Literature Review on EMI on motors and cabling, and shielding / mitigation methods

  - MS1: Expose outlining project

- Initial Testing to quantify effects of EMI on each sensory output

  - MS2: Identify key interfaces where most significant improvements can be made

- Determine optimal methods of improvement and implement these

  - MS3: Implement and quantify effect of newly implemented measures

Requirements

- Experience with DAQ / electrical systems

- Creative approach to problem solving

Possible start

sofort

Contact

Matti Mitropoulos
Room: MW2701
matti.mitropoulostum.de

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