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> How flexible do you think a stock, trailing arm is
ChrisFoley
post Dec 16 2005, 06:19 PM
Post #1


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Specifically I am looking for rotational stiffness (ie. twist) of the trailing arm due to the tire contact patch resisting sideways sliding of the car. I'm only interested in forces greater than 1G during cornering.
I already know what happens but go ahead and take a guess. (IMG:style_emoticons/default/biggrin.gif)
I'll post pictures of my test fixture shortly.
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Posts in this topic
Racer Chris   How flexible do you think a stock, trailing arm is   Dec 16 2005, 06:19 PM
Thorshammer   Remember young whipper snappers, Measure twice cut...   Jan 10 2006, 09:17 PM
TimT   You may have to "see" some things, you wont get bl...   Jan 10 2006, 09:32 PM
brant   I think people should send core arms to Chris to g...   Jan 10 2006, 10:56 PM
Racer Chris   Ok. I think I have a better handle on the mathemat...   Jan 12 2006, 09:35 PM
Racer Chris   These numbers are approximately correct for a 9.5...   Jan 12 2006, 09:50 PM
Racer Chris   I came up with a simple way to fixture a trailing ...   Jan 13 2006, 08:06 AM
jluetjen   OK Folks. And now the moment that you've been...   Jan 13 2006, 08:38 AM
jluetjen   Here's how I set the models up. I used the ge...   Jan 13 2006, 08:44 AM
jluetjen   Here's the top view of the base model.   Jan 13 2006, 08:46 AM
jluetjen   Here's the base model with the vertical bulkhe...   Jan 13 2006, 08:47 AM
jluetjen   Here's the version with just the external guss...   Jan 13 2006, 08:48 AM
jluetjen   And finally the model with the external gusset and...   Jan 13 2006, 08:50 AM
jluetjen   Now it's Chris's turn... ...   Jan 16 2006, 04:40 PM
Racer Chris   My best estimate is sometime in the spring. I stil...   Jan 16 2006, 04:44 PM
Racer Chris   Once I actually sat down and started working on t...   Jan 16 2006, 04:49 PM
Brett W   Can someone please resize the images? ...   Jan 16 2006, 08:35 PM
pek771   Chris is pretty close on this. I thought about it ...   Jan 16 2006, 08:53 PM
jluetjen   Comcast came to the house and we're back in bu...   Jan 17 2006, 04:58 PM
Racer Chris   Thanks John! Looking at the data - It appears ...   Jan 18 2006, 06:56 AM
jluetjen   Chris; Good catch about the magnitude of the y-rot...   Jan 18 2006, 07:40 AM
jluetjen   This is the model with the bulkhead.   Jan 18 2006, 07:45 AM
jluetjen   And the model with the gusset and floor.   Jan 18 2006, 07:46 AM
jluetjen   Here's a different view that may be helpful to...   Jan 18 2006, 07:55 AM
Racer Chris   John, It is apparent that the "arm" you ...   Jan 18 2006, 09:30 AM
jluetjen   Chris; The software only allows me to add forces i...   Jan 18 2006, 01:00 PM
Racer Chris   Not exactly. The 1390 is in the opposite directio...   Jan 18 2006, 05:00 PM
jluetjen     Jan 19 2006, 05:50 PM
jluetjen   Oh yeah, here's the latest data table. Note t...   Jan 19 2006, 06:23 PM
Racer Chris   Hold a carpenter's square against the inside ...   Jan 19 2006, 08:48 PM
jluetjen   Ok -- I've been thinking that we're starti...   Jan 20 2006, 09:09 AM
jluetjen   Here's the overhead view of the gusset with th...   Jan 20 2006, 09:11 AM
jluetjen   A view from the outside of the arm (when mounted) ...   Jan 20 2006, 09:17 AM
jluetjen   Finally an "edge on" view showing the "peaked roof...   Jan 20 2006, 09:18 AM
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