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SHANKAR VAIDYANATHAN View Drop Down
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    Posted: Apr/19/2014 at 9:46am

Greetings,

We students of DHAANISH AHMED COLLEGE OF ENGINEERING, chennai are participating in baja baja(2015) for the first time.Smile We have designed the roll cage.  How to find the mass of the vehicle and how to design other components?Sleepy  We will be grateful for your suggestions. Thank you. Tongue

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tmenzefricke View Drop Down
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Post Options Post Options   Thanks (1) Thanks(1)   Quote tmenzefricke Quote  Post ReplyReply Direct Link To This Post Posted: Apr/19/2014 at 10:21am
We've had good results using a scale.
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gearhed31 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote gearhed31 Quote  Post ReplyReply Direct Link To This Post Posted: Apr/20/2014 at 7:50pm
assuming you used solidworks like the rest of us... on the evaluate tab there's a mass option, that approximates the mass of the part, provided you properly set your material
Any problem you will ever encounter in life can be solved; all you need is a big enough hammer

SUNYIT Baja Sae frame and suspension design lead
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SHANKAR VAIDYANATHAN View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote SHANKAR VAIDYANATHAN Quote  Post ReplyReply Direct Link To This Post Posted: Apr/24/2014 at 9:37pm
That means we have to design each nut and bolt,washer with appropriate materials to know the exact mass of the vehicleShocked?
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gearhed31 View Drop Down
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Post Options Post Options   Thanks (1) Thanks(1)   Quote gearhed31 Quote  Post ReplyReply Direct Link To This Post Posted: Apr/25/2014 at 1:34am
not necessarily... we have had good results by simply designing/finding pre-made models for major components, making an assembly, getting the estimated mass, and then deciding on an educated guess of the total weight of all the little things, largely based off experience with past cars. if you only care to be accurate to the nearest 25lbs, it works well.

if you aren't good at "guess the weight" games, an alternative which is potentially more accurate is to design major components, get the solidworks approximation, then get a scale and weigh all of your hardware
Any problem you will ever encounter in life can be solved; all you need is a big enough hammer

SUNYIT Baja Sae frame and suspension design lead
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FelixB View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote FelixB Quote  Post ReplyReply Direct Link To This Post Posted: Apr/25/2014 at 7:15am
start by making a Baja that can finish an endurance race (let alone pass tech) and then start thinking about weigth... 
and yes you'll have to design the whole thing if you want to avoid some grinding later...
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SHANKAR VAIDYANATHAN View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote SHANKAR VAIDYANATHAN Quote  Post ReplyReply Direct Link To This Post Posted: Apr/25/2014 at 8:12am
@felixb:
Our aim is to construct a baja vehicle in order to make it run on the track. We are not concentrating on innovations, since this is our first time(a big leap) for our standards.
so what are the things to be fulfilled to achieve above stated?
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sujandinesh View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote sujandinesh Quote  Post ReplyReply Direct Link To This Post Posted: Apr/25/2014 at 12:52pm
Ensure that each and every component you design is done by considering the appropriate load cases and factors of safety. By doing this, you might not build a light car but will surely build a durable one.
RVCE BAJA: 2011-2015
General Motors: 2015-2016
Tyre Testing - University Racing Eindhoven: 2016-2017
Tyre Dynamics - TASS International: 2017-2018

Tyre Engineer - Apollo Vredestein
The Netherlands
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FelixB View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote FelixB Quote  Post ReplyReply Direct Link To This Post Posted: Apr/25/2014 at 2:28pm
furthermore, read the rules and be sure to understand them... it's not rare to see teams not even getting passed tech...
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Mod Squad Quote  Post ReplyReply Direct Link To This Post Posted: May/02/2014 at 11:48pm
If your reading comprehension is as good as your engineering skills, you may be in for a though time. 

Thread moved to correct forum...
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