how will I calculate the same for I beam then ?
and the value of F that is been found is the surface stress of the mast and can i compare it to tensile stress if the material for the mast ?
thnx
yes I am trying to find out the the best place to attach the cable to the boom and i am aware that this will give the bending moment at the mast, but won't the value which we got for the stress in Mpa give us an idea that this beam can withstand this load by comparing this value by the yield...
oops...I did a silly mistake...got it confused with something else
well now its coming to be 215 MPa
so will the factor of safety be 350/215 = 1.59
and what about the other factors, I have to resolve the moment at different points in order to get most optimum position for the support?
I am sorry for the above errors
the value of I used in 3 of post 6 is 33 783 168 only
here are my calculations again
the I beam used is 248*124*5 / 8
1.Bending Moment
= F*D
where F = 2 ton
= 2000 kg
= 2000*0.98 N
= 1960 N
and D= 3000 mm
so,
F*D= 1960*3000
= 5880 * 10^3 N*mm...
First of all thanks a lot for replies
@turbo- It is attached with a 2 ton movable hoist only
@phantom jay- since it is attached with movable hoist there will always be bending at some points, I am also including my calculations
@nvn- have a look at my calc
The boom is connected at 3m...
Homework Statement
I am trying to design a workshop crane and have found a considerable success so far. It is a maximum 2 ton crane and i have found which I beam to use by the method mentioned below.
Some of the specifications are
boom length(span) = 3 m
mast length(vertical portion) = 4...
@pongo- well the load is eccentric because all three legs are hinged to a flange(which has welded hooks, its made such that all legs make equal angles) and as nvn made it clear that its a case of buckling so i think there's no need of bending moment here.
@NVN-I calculated the final load by...
@pongo- the direction will be opposite to that of the force applied and magnitude will be calculated by stress formula(i guess )
@nvn-the legs are tied at the extreme bottom by means of chain only... and what about neutral axis shall i take the distance as radius of the shaft?
and how to use...
Thanks a lot rockfreak.I will calculate and post again, but here i am confused about one thing that how does aluminum properties effect the maximum load taken by the tripod and how ... what will be the maximum P here so that tripod does not break ?
@pongo- the wait is suspended at the top of...
i am really sorry nvn...since this was my first post...i have been doing some research lately through your wonderful site and found out the stress can be found out by stress=My/I
and I for hollow shaft is pi*(Do^4-Di^4)/32
is my approach correct ? doesn't it depend on any material property of...
Homework Statement
well guys i am in 10 th standard...jus out of nowhere i challenged a person that i can find out the maximum weight a trpod can take...now i have no clue how to solve this problem
pleasez help me out
its 3.5 m hollow shaft with 2 inch outer dia and 5 mm thickness and...