Analysis of a Nulling Yaw Probe

1
Analysis of a Nulling Yaw Probe

• ME 450 Computer Aided Engineering Analysis
• Instructor Dr. Nema
• Group members
• Billy Holland, Alan Koers, Allison Heying

2
Objectives

• Determine if stress or displacement will
  negatively affect function of device
• Study vertical position of motor
• Study horizontal position of motor
• Study probe when exposed to air flow

3
Introduction

• Apparatus to observe pressure and flow angle of
  annular flow in turbine engine
• 462 project added component to allow for flow yaw
  angle measurement
• Main area of concern is support for motor

4
Complete Assembly
5
Theoretical Background

• Solid 92 (Tetrahedral Solid) 10 Nodes, 3-D
  Space, DOF UX, UY, UZ
• Is the WORKBENCH default element

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Model Details Sub Assembly

• Element Type SOLID92
• Elements 2579
• Nodes 10004

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Model Details Sub Assembly

• Model grounded at mounting holes in tracks
• Moments applied to motor support mounting holes

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Model Details Yaw Probe

• Element Type SOLID92
• Elements 2964
• Nodes 5859

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Model Details Yaw Probe

• Model grounded at probe base
• Pressure due to wind speed applied surface of
  probe

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Stress at Vertical Orientation
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Displacement at Vertical Orientation
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Stress at Horizontal Orientation
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Stress at Horizontal Orientation (bottom)
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Displacement at Horizontal Orientation
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Stress in Probe
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Displacement of Probe
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Results
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Impact Statement

• Probe apparatus will be safe for users
• Knowledge of flow angle and pressure in turbine
  engine will allow for improvements

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Conclusions

• Design will have no problems due to stress or
  deformation
• Factor of safety is at least 40

20
Questions

• Sources
• Finite Element Analysis by Saeed Moaveni
• Introduction to Fluid Mechanics by Robert Fox
• Mechanics of Materials by John Dewolf