Finite Element Analysis of Sevenesque Style Chassis

[eSteve]

Morning,

found some reports on FEA of some Sevenesque style chassis whilest stumbling about the Internet. They are on the Locost7 info site's in the chassis section:

www.Locost7.info

On this page see the links to (they will open the documents in Word):

Final Thesis A.doc
Final Thesis B.doc

by Wesley Linton (MSC Thesis - Cranfield University)

kitcaranalysis.doc
kitcaranalysis_V2.doc

by Unknown

Both deal with Sevenesque style chassis carrying out some FEA work on improving their stiffness. The work by Linton deals with a Leugo chassis and some work was carried out to align the model with experimental data. The other work is based on a Locost chassis.

They both make interesting reading.

[K4KEV]

This is HEAVEEEEEEEEEEEEe
ALRMALARM BRAIN CELL OVERLOAD.....ALRMALARM BRAIN CELL OVERLOAD.....ALRMALARM BRAIN CELL OVERLOAD.....ALRMALARM BRAIN CELL OVERLOAD.....ALRMALARM BRAIN CELL OVERLOAD

[TQ_uk]

Over on Locost Builders someone did some FEA & came up with a few simple mods that would be beneficial to the overall design - busy at mo but will see if I can dig around later

[spud69]

I agree with Kev, far too heavy for me.

The best mod i can see is to consider making the chassis from 2mm wall section box rather than the 1.6mm. Doesn't seem like a lot, extra 8kg, but it makes the chassis a lot stiffer and stronger. Add some additional cross bracing around the engine bay and you have a very stiff chassis.

Just my thoughts.....AndyH

[TQ_uk]

Ah, should have viewed your links first - the link to 'kitcaranalysys_V2.doc' is what I was referring to...

[HandyAndy]

I,ve just started reading the attached links, maybe I,m the odd one out but that is quite interesting reading
I,ve saved it & will be reading it in more depth later....when kids are not wanting my attention

cheers
andy

[les g]

Originally Posted by HandyAndy

I,ve just started reading the attached links, maybe I,m the odd one out but that is quite interesting reading
I,ve saved it & will be reading it in more depth later....when kids are not wanting my attention

cheers
andy

and then would you please design a chassis where the coilovers are in a better plane ie:front to back and with bellcranks and pushrods
cheers les g

[HandyAndy]

Originally Posted by les g

and then would you please design a chassis where the coilovers are in a better plane ie:front to back and with bellcranks and pushrods
cheers les g

maybe i need to get out more , but the chassis "work" I find interesting

cheers
andy

[flyerncle]

Go to 3GE 's website Les,copy the chassis pic and and make it larger you will see the brackets for the rocker arms fitted to it.

[shh120m]

Originally Posted by spud69

I agree with Kev, far too heavy for me.

The best mod i can see is to consider making the chassis from 2mm wall section box rather than the 1.6mm. Doesn't seem like a lot, extra 8kg, but it makes the chassis a lot stiffer and stronger. Add some additional cross bracing around the engine bay and you have a very stiff chassis.

Just my thoughts.....AndyH

I made my chassis from 2mm wall steel just because thats all i could get hold of at the time, but i bought a 2m section of 1.6mm box from b&Q the other day for the grp rear tub frame and in all honesty the thickness of the wall scared me, makes me feel glad iv over engineered things. i also blew a hole through it when welding!, i think 2mm is a little more forgiving to the novice welder like me, may be worth noting for those with limited welding experience looking to build a roadster in the future.