design frame machine formula sae

[predatore]

Hello everyone! My name is nicolò and mechanical engineering study, I'm about to graduate in three years. this year I decided to enter the role of designer in the fsae team, more precisely the chassis part. I would like to know, if you have knowledge, if there are books, manuals, who has more to design a frame.
What are the steps to follow? How do I behave in front of a project that starts practically from 0??

thanks to anyone who will answer, if there are inaccuracies or the data provided are few asked and criticized as well, sorry but I am quite desperate!:frown:

 

[PierArg]

Hi.
First you should read the forum regulation and submit yourself.

Secondly, you should read the sae formula regulation because it imposes different requirements to be met.
already after the first reading you will have different constraints for the construction of the frame.
in general, but take everything with the due cautele because they are ignorant in the matter, yes part of the tyres (This is the only thing I can tell you for sure).
the maximum would be to directly detect the forts on the track and then use those for the sizing of suspensions and frame.
but this is not your case because your car starts from scratch.
So you could "please" to use adams software (I don't remember well) to track the track and make a simulation. from there revenues the forts.
Of course proceed to fem and not by hand otherwise in 4/5 years you would still be here. :tongue:

on the net you should find material.

 

[abelli12]

I recommend reading of: "the car frame" of genta-morello and. levrotto and beautiful

 

[painaz]

Hello everyone! My name is nicolò and mechanical engineering study, I'm about to graduate in three years. this year I decided to enter the role of designer in the fsae team, more precisely the chassis part. I would like to know, if you have knowledge, if there are books, manuals, who has more to design a frame.
What are the steps to follow? How do I behave in front of a project that starts practically from 0??

thanks to anyone who will answer, if there are inaccuracies or the data provided are few asked and criticized as well, sorry but I am quite desperate!:frown:

As you have rightly been told, leave the regulation.

as a link I tell you:
http://www.dinamoto.it/of cossalter (ordinary of mechanics applied to padova machines when I attended)

is specific for motorcycle frames, but the principles of physics on pneumatic/asphalt interaction are general. It can still be an interesting point.

 

[woocash]

Hello everyone! My name is nicolò and mechanical engineering study, I'm about to graduate in three years. this year I decided to enter the role of designer in the fsae team, more precisely the chassis part. I would like to know, if you have knowledge, if there are books, manuals, who has more to design a frame.
What are the steps to follow? How do I behave in front of a project that starts practically from 0??

thanks to anyone who will answer, if there are inaccuracies or the data provided are few asked and criticized as well, sorry but I am quite desperate!:frown:

generally starts with pneumatic/asphalt interactions. Of course, you only need that when you already have the fem model. what I would recommend you to do is to start from the cad, and in particular from the 3d sketch scheme of the frame (if it is a frame, as I presume it is since you are at the 1st year of design). in particular, you must mark all the main points on which you have constraints (type suspension attacks, motor attacks, differential, encumbrance, silhouettes, etc.)
once you have these you draw a sketch of the basic geometry of the frame and then, once you have reached a quite satisfactory geometry (eye it seems that you regga) you pass to the calculation fem, obviously modeling everything with the beams. In this however you will also have to insert a suspension model (possibly, modeling them as "infinitely rigid" - I don't know what software used for the fem, but in abaqus you can do it).
for loads, very often it is good to go cautionive, so since you are at the 1st year, I would tell you to design everything by hypothesize of the 2g accelerations of the car (the masses get them from the regulation). of course, all these are indications to start, then you will have to refine everything - sometimes it is question of years