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  • Users: mark512
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  1. mark512

    Bonding a Joint in Multiple Steps

    Hi all, This application would be using acrylic or epoxy as a structural adhesive. Here are some joint examples (lifted from http://www.adhesivestoolkit.com/): In the two examples on the very left, would it be acceptable to first bond the angle(s) to the vertical plate, and then later, when...
  2. mark512

    Gearbox sump & cover design resources

    Hi, I'm looking for gearbox sump & cover design resources, mostly with respect to fluid dynamics. To be more specific, here are two still images from a Shell video demonstrating their gear oil in a transparent gearbox. Static: Dynamic: There are several design features that I can see...
  3. mark512

    Lithium-Ion Battery Pack Architecture

    I'm looking at the design shown in this video: https://youtu.be/bn0KtdrpoEM I've drawn a schematic of how I believe it works: Essentially it's a bunch of circuit boards, with each circuit board having a string of cells in series. The boards are stacked using standoffs, which also serve as...
  4. mark512

    True center-point steering geometry?

    I'm looking at the concept of "center-point steering" which seems to mean that there is zero mechanical trail and zero scrub radius (steering axis passes through the geometric center of the tire contact patch) or by some definitions, just zero scrub radius (steering axis passes through the...
  5. mark512

    Total Lateral Load Transfer Distribution "Rule of Thumb"

    I've come across this rule of thumb in a few places that the total lateral load transfer distribution (TLLTD) with respect to the front axle should be around 5% greater than the static weight distribution with respect to the front axle. What's unclear to me is if this percentage is multiplied in...
  6. mark512

    Roll center heights - I apologize in advance

    I've been scouring textbooks and the internet regarding roll center heights, and in particular the front-rear difference (roll axis inclination) and why the rear roll center is often higher than the front. I've organized what I found into several theories: Theory 1 - Other suspension...
  7. mark512

    Camber Curves of Front vs. Rear Suspension

    I haven't managed to find a lot about this online - there seems to be plenty of information regarding "setting up" a particular vehicle for a specific purpose (street, track, drifting, etc.) but these discussions are mostly limited to adjusting the static cambers of a particular car. What I'm...
  8. mark512

    Clarification in Fundamentals of Vehicle Dynamics (Milliken)

    I'm having a problem understanding the terms in Chapter 6 (steady-state cornering) They start with a free body diagram of a bicycle model (front and rear axles are each represented by a single wheel) turning a corner in equilibrium at velocity V with radius r. With vehicle mass M, wheelbase L...

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