name of support point (21.9% from end) with minimal deflection
name of support point (21.9% from end) with minimal deflection
(OP)
Hi,
I am looking for the name of the support points of a simply supported beam with a uniform loading, with two reaction points, with minimal deflection of the beam (midpoint and cantilever combined).
If memory serves me, this should be at around 21.9% from both ends.
These points have a name (probably named after the guy that first did this calc), and this method of supporting is widely used by metrology laboratory where, for example, they have to check (certify/validate/ ?) a straight edge.
Could somebody help me out here?
Thx!
I am looking for the name of the support points of a simply supported beam with a uniform loading, with two reaction points, with minimal deflection of the beam (midpoint and cantilever combined).
If memory serves me, this should be at around 21.9% from both ends.
These points have a name (probably named after the guy that first did this calc), and this method of supporting is widely used by metrology laboratory where, for example, they have to check (certify/validate/ ?) a straight edge.
Could somebody help me out here?
Thx!
http://www.fusionpoint.be
http://be.linkedin.com/in/fusionpoint






RE: name of support point (21.9% from end) with minimal deflection
another day in paradise, or is paradise one day closer ?
RE: name of support point (21.9% from end) with minimal deflection
It's really a guy's name (let's say for argument's sake, "Euclidian Points", it's not that, off course, but it's similar).
http://www.fusionpoint.be
http://be.linkedin.com/in/fusionpoint
RE: name of support point (21.9% from end) with minimal deflection
RE: name of support point (21.9% from end) with minimal deflection
another day in paradise, or is paradise one day closer ?
RE: name of support point (21.9% from end) with minimal deflection
I don't know the point's name but the 21.9% is ok
Here you can find the équations:
http://www.engineersedge.com/beam_bending/beam_bending5.htm
RE: name of support point (21.9% from end) with minimal deflection
Doug Jenkins
Interactive Design Services
http://newtonexcelbach.wordpress.com/
RE: name of support point (21.9% from end) with minimal deflection
They're called the Airy points after Sir George Airy. They are separated by a distance of approximately 57.7%. Here's a derivation of the points if your interested. Link
Regards,
DB
RE: name of support point (21.9% from end) with minimal deflection
Dik
RE: name of support point (21.9% from end) with minimal deflection
The Airy value gives a cantilever deflection 91% higher.
Doug Jenkins
Interactive Design Services
http://newtonexcelbach.wordpress.com/
RE: name of support point (21.9% from end) with minimal deflection
See also: https://en.wikipedia.org/wiki/Talk:Airy_points
Doug Jenkins
Interactive Design Services
http://newtonexcelbach.wordpress.com/