This webpage last updated; June 23, 2009

Mechancial Engineering Consulting Services provided by af-insight relate to; Aircraft Propeller Design, Math Modeling, and Finite Element Analysis (FEA).

Why choose af-insight?  Simple, you save money!  This occurs because af-insight has extremely low overhead and many years experience.  These factors translate into low hourly rates and quick turn around times.  Simply put, in many cases, af-insight can do your work for you at a cost that is lower than what you or others can.  Details of the Mechanical Engineering Consulting Services af-insight provides are listed below:

Aircraft Propeller Design:

     Features:
          - Determine the optimum aerodynamic blade shape via Vortex Theory

     Differentiators:
          - Airfoil Analylsis
               - Modern (circa 2005) analytical formulation, no empirical fudge factors utilized
               - Includes transonic flow effects, thus improving product performance
          - Vortex Theory
               - Modern (circa 1996) analytical formulation, no empirical fudge factors utilized
               - Includes the affect of blade sweep, this opens the door to Ultra High Bypass (UHB)
                  applications, known by many names, such as Propfans, Unducted Fans (UDF),
                  Open Rotors, and Open Fans

     Limitations:
          - For a number of reasons, af-insight does not design counter-rotating propellers


Math Modeling:

     Features:     
          - Model product performance using math

     Differentiatiors:
          - Expert wrt modeling Inertial Sensors (Accelerometers, Rate Gyroscopes, and Gyrocompasses)
               - Structural Mechanics (Taut Wire Suspensions)
               - Vibrations (Vibration Rectification)

               - Dynamics (Homogeneous Second Order Linear Ordinary Differential Equations)
               - Heat Transfer (Electronic Packaging)
               - Fluid Mechanics (Hydrodynamic Gas Spin Bearings)
               - Electromagnetics (Microsyns, Torquers, Electromagnetic Suspensions, and
                  Hysteresis Synchronous Motors)
               - Control Systems (P and PID Control)
               - Data Analysis (Allan Deviation)

     Limitations:
          - Product performance must rely upon documented and proven physics as well as
             known material properties


FEA:

     Features:
          - Analysis of parts or assemblies with Linear Contact
               - Linear Static Analysis
               - Linear Steady State Heat Transfer Analysis
               - Thermal Stress and Deflection Analysis
               - Normal Modes Analysis (Natural Frequencies and Mode Shapes)

     Differentiators:
          - Normal Modes Analysis with Stress Stiffening and Spin Softening
          - Coriolis and Gyroscopic Loads
          - Undeformed Model (Cold Shape) and Deformed Model (Hot Shape) Inertial Properties
          - Hot Shape Export

          - Soderberg Diagram created from FEA results, to help avoid fatigue failure
          - Campbell Diagram cretaed from FEA results, to help avoid resonance in rotating structures

     Limitations:
          - Parts or assemblies may not contain anisotropic nor orthotropic materials