Deflection in a Cantilever beam

Click For Summary

Discussion Overview

The discussion focuses on methods to reduce deflection in a cantilever beam, which is fixed at one end with a load applied at the free end. Participants explore various theoretical and practical approaches to address this engineering challenge.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested

Main Points Raised

  • Some participants suggest reducing the length of the beam as a primary method to decrease deflection.
  • Increasing the modulus of elasticity of the beam is proposed as another potential solution.
  • One participant mentions increasing the second moment of area of the beam and providing extra supports as additional methods.
  • A suggestion is made to use a supporting cable to assist in reducing deflection, although the effectiveness of this approach is questioned.
  • Optimizing the variable section of the beam and using rigid stays are also mentioned as possible strategies.
  • Concerns are raised about the reliability of cable stays for reducing deflection, particularly regarding their angle and tension settings.
  • Another participant proposes that structural modifications could potentially make deflection negligible by redirecting forces.

Areas of Agreement / Disagreement

Participants express a range of views on effective methods to reduce deflection, with no consensus on the best approach. Some methods are supported by multiple participants, while others are contested or deemed less reliable.

Contextual Notes

Participants do not fully explore the implications of their suggestions, and some methods may depend on specific conditions or definitions that are not clarified in the discussion.

Who May Find This Useful

This discussion may be of interest to engineering students, professionals working with structural design, and those exploring mechanical properties of materials in relation to beam deflection.

choudhari.mayu
Messages
6
Reaction score
0
Hello,

i was looking for ways i can reduce the deflection in the cantilever beam whose one end is fixed and load is applied at the free end.

Few i thought of was,
1- Reducing the length of the beam
2- Increasing the modulus of elasticity of the beam
3- ??
4- ??
5......

Appreciate your help

Thanks
 
Engineering news on Phys.org
One of few formulas you should memorize is the deflection at the free end of a cantilever with a point load applied at the free end. Write it down and see what variables you can change besides length and elasticity yo reduce the deflection.
 
Increasing the second moment of area of the beam, providing extra supports etc.

I'm trying to reduce the reflection of a cantilever beam as well, but there isn't much you can do. Best bet is to reduce the length but in most cases it isn't possible.
 
choudhari.mayu said:
Hello,

i was looking for ways i can reduce the deflection in the cantilever beam whose one end is fixed and load is applied at the free end.

Few i thought of was,
1- Reducing the length of the beam
2- Increasing the modulus of elasticity of the beam
3- ??
4- ??
5......

Appreciate your help

Thanks

Can you use a supporting cable to help?

http://media.cheggcdn.com/media/339/339bef0e-5707-4c7e-b0d1-eb9d4b8afef9/phpB1vxDf.png
phpB1vxDf.png
 
Optimised variable section .
Rigid stay .
Haunch .

Cable stay shown is not set at a very effective angle to reduce deflection .
Cable stays with no provision for setting tension are in any case not a reliable means of reducing cantilever beam deflection .

Edit : Old thread - op has gone .
 
Last edited:
The deflection can be made approximately zero by creation/modification of the structure in that way.
Then the arrangement of members will form a structure which deflects the point to some other direction or make it zero approx...
 

Similar threads

Replies
3
Views
3K
Replies
9
Views
4K
Replies
33
Views
6K
Replies
15
Views
3K
  • · Replies 5 ·
Replies
5
Views
2K
  • · Replies 8 ·
Replies
8
Views
4K
Replies
6
Views
4K
Replies
3
Views
2K
  • · Replies 2 ·
Replies
2
Views
2K
  • · Replies 2 ·
Replies
2
Views
3K