Recent content by lakmalp

  1. L

    How to calculate the height submerged of cylinder

    Thank Simon. I'll look into that and will post what I found.
  2. L

    How to calculate the height submerged of cylinder

    I think I found the answer. It is so simple than I thought :) Circular Segment Equation (9) is the solution :)
  3. L

    How to calculate the height submerged of cylinder

    I couldn't go much far... If l is length of cylinder, y·sin\theta=2r-x y=\frac{2r-x}{sin\theta} Area=2·y·cos\theta·l =2·\frac{2r-x}{sin\theta}·cos\theta·l =2·(2r-x)·cot\theta·l Volume=\int ^{0}_{\frac{\pi}{2}} 2(2r-x)·cot\theta·l·d\theta How can I get a relationship between x and \theta...
  4. L

    How to calculate the height submerged of cylinder

    Yeah, that's where I am stuck at. V = L\int A(h)dh I was not able to find A(h) so far. Anyway I'll have a look again whether I can find any relationship. I'll post what I have done so far a little later.
  5. L

    How to calculate the height submerged of cylinder

    Vwater.ρwater.g = mcylinder.g Vwater = mcylinder/ρwater
  6. L

    How to calculate the height submerged of cylinder

    I think you misunderstood what I said. Sorry for being not descriptive. Since I know the weight of cylinder, I can calculate volume of the water displaced. But it doesn't contain 'h' in it. I am struggling to get 'h' into this volume,i.e. I want to know f(h)
  7. L

    How to calculate the height submerged of cylinder

    A hollow cylinder (but not open ended) is allowed to float on a liquid. Can anyone please help me how to calculate the height (h) it submerge? I want to get a relationship between height and cylinder weight. I can calculate the volume of submerged part. But no idea how to derive a formula with...
  8. L

    Single acting cylinders - naming

    @Integral: Thank you a lot. :smile: What I want is "Reverse Single Acting" from http://www.universalsewing.com/tek9.asp?pg=search&mode=results&searchby=Products&srch=&usssearchby=header&usscriteria=299.4": Reverse Acting Cylinders: A "pull" type cylinder where the piston rod is normally...
  9. L

    Single acting cylinders - naming

    Hi, For single acting hydraulic cylinders, how can I specify I need pushing cylinder? Is there a specific name for push or pull cylinders? Please let me know how should I call Cylinders of type 1 and type 2. |----------------------| | || | |...
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    Arc welding plant power cut off

    I am not the one actually who use it. But the workers at my father's factory. They are not that concerned with turning it off when not in use. Last weekend it was on during the whole weekend. So, that's why I want to find a solution for this.
  11. L

    Arc welding plant power cut off

    I have an arc welding plant and I realized that I am wasting energy when it is not used but powered on. Can anyone please suggest a way to get rid of this problem? That is, plant gets "active" when it is welding and is "idling" when it is not welding.
  12. L

    What properties of a cylinder rod affect buckling when pulling?

    If the cylinder rod is pushing (extending), we have to consider buckling. What happens when it is pulling? Please let me know what properties of the rod we do have to take care of.
  13. L

    Synchronization of hydraulic pistons

    Thank you all for your valuable inputs. It seems I am not the one who should take up this job. :) Thank you all again!
  14. L

    Synchronization of hydraulic pistons

    @Enthalpy: You mean: use electric motor instead of hydraulics?
  15. L

    Synchronization of hydraulic pistons

    Sorry, I couldn't get you. This is what I meant: http://www.aegarageequipment.co.uk/phantom-park1.jpg" with added counterweights.
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