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  • Users: tjakeman
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  1. tjakeman

    Catia drafting question - Calling users of both Pro.E and Catia.

    I'll start by saying that I have very little experience with Catia. This question has likely been asked before, but I haven't found a solution online, or from any of my collegues. When dimensioning a hole on a drawing in Pro Engineer, I would add details of the hole e.g. depth, chamfer size...
  2. tjakeman

    Automotive wheel bearing - Housing fit

    Hello. I'm about to machine some aluminium uprights for my car, but I'm struggling to decide on the fit of the wheel bearing. The upright (housing) is Aluminium 7075. The bearing is a double row taper roller assembly. OD 72 ID 39 (is it ford fiesta, using fiesta live front axles) So the outer...
  3. tjakeman

    Annoying suspension geometry questions - part 2

    Almost a year ago I asked some questions on this board regarding rear suspension geometry and the answers were helpful, thank you. Had some time off the project (real job got in the way) but now I'm finalising the rear and deciding on the front. Anyway, before I go fabricating I just wanted to...
  4. tjakeman

    Annoying suspension geometry questions

    Hi Everyone. Firstly let me apologise for asking the same questions as many others will have done before me. I'm struggling a bit with lack of experience. I'm designing the suspension for a light weight sports car: 700kg 300 bhp front engine rear drive twin wishbone front twin wishbone rear...
  5. tjakeman

    Convert Accelerometer data to displacement values

    Hello, I'm sure this topic has been covered before, but I'm still struggling with it. The Story: I have signal data from an accelerometer mounted to a car - one lap around a track. After filtering this data (high pass 13Hz) to remove ridgid body motion, I used it to drive a shaker rig with...
  6. tjakeman

    filtering in the frequency domain

    Hello, and firstly appologies, I am a novice matlab user. I want to filter some frequencies from a time domain signal (filter out everything below say 7 Hz). I was expecting to: FFT time signal to frequency domain Apply filter to frequency domain signal inverse FFT filtered signal back to...
  7. tjakeman

    Specific damping - composites

    Hi, I have recently started some work on free and forced vibration of composite structures. I have found *Modal Dynamic analysis in Abaqus to be the most useful. What I lack is information on the specific damping coefficient for composite structures. Obviously the volume fraction, structure...
  8. tjakeman

    flywheel FEA

    This is a cross post with the mechanica forum, general help would be useful though: Has anyone carried out FEA analysis of an automotive flywheel before? I need to do so this week, using mechanica. I have quarter model with rotational symmetry constraints, centrifugal load etc. What I'm...
  9. tjakeman

    analysis of automotive flywheel

    Has anyone carried out FEA analysis of an automotive flywheel before? I need to do so this week, using mechanica. I have quarter model with rotational symmetry constraints, centrifugal load etc. What I'm really lacking is information on a realistic load case. Heat input, shear on the clutch...

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