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Message No. 10894, Started by sluggishh on 03/27/03
 collision problem... Pls help me with this: A constant velocity mass moves in a straight line and bumps into a stationary rod fixed at the lower end(upper end free). This rod then deflects. My qn is: HOw do I find the force that the rod experiences due to the collision? And its deflection? The objective is to find a particular diameter for the rod such that deflection is minimal/negligible. Thanks a million!
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Follow-up Messages (17)
 Yes acroduster I agree. I did point out in the last paragraph of my first ... No. 11146, Posted by neil moran on 05/06/03, 01:16 PST. One thing you guys haven't considered is that you are chasing your tail whe... No. 11143, Posted by acroduster on 05/05/03, 06:31 PST. Yes, the rod will experience permenent deformation if its stress reaches or... No. 10923, Posted by neil moran on 03/31/03, 08:43 PST. Try thinking of this as a "classic" sliding block crashing into a compressi... No. 10920, Posted by rolschwarz on 03/31/03, 08:26 PST. hihi!@ yup.. the moving object comes to a stop.. Head on collision, 1D. A... No. 10917, Posted by sluggishh on 03/31/03, 07:41 PST. Yes, I think a problem like this may well be done iterativly--trial and err... No. 10912, Posted by rolschwarz on 03/31/03, 05:45 PST. I like that approach Rolschwarz, I hadnt thought of that one. Yes, give... No. 10911, Posted by neil moran on 03/31/03, 02:19 PST. No, not bending moment. The equation D = W*L^3 / 3*E*I is the deflection of... No. 10907, Posted by neil moran on 03/30/03, 07:56 PST. Some things are still a bit unclear. Does the moving object come to a stop... No. 10906, Posted by rolschwarz on 03/30/03, 07:35 PST. It is not uncommon for the results of these calculations to be higher than ... No. 10905, Posted by rolschwarz on 03/30/03, 07:16 PST. RE: "not easy being an engineer ...." we all need to apply ourselves to ... No. 10903, Posted by gerdb on 03/29/03, 21:08 PST. Hello Neil, Ive got a qn: The equation D = W*L^3 / 3*E*I... Is this the ... No. 10902, Posted by sluggishh on 03/29/03, 21:00 PST. hi rolschwarz... Hmm..I've thought about dividing the change in momentum b... No. 10901, Posted by sluggishh on 03/29/03, 20:11 PST. yeah...kind of a school project. im actually an attachment student at a com... No. 10900, Posted by sluggishh on 03/29/03, 20:04 PST. Hi, I had a think about this problem and have come up with the following... No. 10899, Posted by neil moran on 03/28/03, 12:37 PST. Generally, I find it more effective to approach this type of problem from a... No. 10897, Posted by rolschwarz on 03/28/03, 06:28 PST. if it is a practical application, why not buy a piece of drill road, lets s... No. 10896, Posted by gerdb on 03/28/03, 05:25 PST.