TwinTurbo.NET: Nissan 300ZX forum - The roof isn't flat. The convex shape in itself is strong
Subject
The roof isn't flat. The convex shape in itself is strong
Posted by
canyoncarver
on March 27, 2010 at 7:14 AM
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In Reply To
I believe you are thinking of it the wrong way
posted by Ashman2k2
on March 27, 2010 at 02:48 AM
Message
then add in the structure under the sheet that holds the shape. If you look at a car without a roof, or a minimal roof, all of the torsional rigidity is controlled below the doorline, hence the flat cardboard analogy.
Follow Ups
Random thought: Has anybody ever compared a Slicktop
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Ashman2k2
15:42:43 03/26/10
I thought the benifit of the slick top was weight..
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Hoppy2
15:48:27 03/26/10
lighter and doesnt leak :) (n/m)
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SuparexTT
16:00:50 03/26/10
and lacks the ability to remove the t-tops on a nice day (n/m)
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Ahmed (Chicago)
16:47:03 03/26/10
2nd that. sucks. (n/m)
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KasbeKZ(VA)
17:20:10 03/26/10
true, but what about cleaning the pollen out?
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SuparexTT
17:56:11 03/26/10
Re: and lacks the ability to remove the t-tops on a nice day
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canyoncarver
19:20:52 03/26/10
for the same reason people buy convertibles (n/m)
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Ahmed (Chicago)
20:17:02 03/26/10
Same reason people punch chimney holes in their houses:) (n/m)
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Zxpress
20:33:42 03/26/10
Still can't figure out why people want roofs (n/m)
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Adam (NoVA)
20:42:56 03/26/10
to keep out the wet stuff. (n/m)
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SuparexTT
20:59:53 03/26/10
two t-top Z's, 8 years, zero leaks
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LJZTT
23:26:52 03/26/10
it's probably bc the leak is at the a-pillar.
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SuparexTT
10:51:32 03/27/10
The ttop has 1 structure member the slick top has 3.
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Bernie (NoVA)
15:57:18 03/26/10
This was stated in the "Stiffening the Chassis" FAQ.
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CoHPhasor
18:53:02 03/26/10
to the above responses.
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ZiNnYc
20:43:30 03/26/10
haha, stooooooooop... it's all about the h20!
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SuparexTT
21:02:01 03/26/10
Re: to the above responses.
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CoHPhasor
21:04:28 03/26/10
I didn't say it was required to understand the concept.
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ZiNnYc
21:33:03 03/26/10
I believe you are thinking of it the wrong way
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Ashman2k2
02:48:04 03/27/10
The roof isn't flat. The convex shape in itself is strong -
canyoncarver
07:14:28 03/27/10
You are placing a great deal of confidence in a few spot
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ZiNnYc
09:51:33 03/27/10
Your trying to hard
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550HPTT
11:27:35 03/27/10
But that thin cross section is far away from the axis that
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black300zx
07:32:20 03/27/10
Shade-tree test shows that a cardboard box is more rigid
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canyoncarver
23:03:48 03/26/10
more rigid with respect to which forces?
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ZiNnYc
09:45:48 03/27/10
Please provide a link to the reffed convertible measurement
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EUGENE
21:03:34 03/26/10
I think they look better. But the t-tops would attract more.
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SuparexTT
22:25:19 03/26/10
Asked that question to a few of the Nissan Race Team
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Milo (SATX)
21:08:33 03/26/10
Nice post. (n/m)
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Halo Z
00:32:01 03/27/10
Do you have a link to a post that states what he did?
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1blackz
00:32:15 03/27/10
Here is the link:
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Ashman2k2
03:00:21 03/27/10
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