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  • Users: Losty
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  1. Losty

    Formula repersentation

    say for example, R = a*b/c How can we use the solver or Vlookup option Thanks Losty
  2. Losty

    Formula repersentation

    Hi Guys, This is what i am trying to achieve: I want to make a calculation sheet where the formula involves three variables...say, Results(R) = f(a,b,c) At any given time, three of the varibles are known and the user needs to find the 4th variable. I want a simple interface, where user...
  3. Losty

    How to calculate thickness of thin sheel for radial buckling?

    I found it on the Rorak's Book ..... I looked at 4th edition ...and its on page 690, chapter 14, Elastic Stability. Thanks for your help guys ... Losty
  4. Losty

    How to calculate thickness of thin sheel for radial buckling?

    Hi Guys, i got a situation where a thin shell (open ended) of 1300 mm dia X 950 mm length is subjected to a uniform external pressure on outer cicumference say, 1500 KPA .... How can i calculate the safe thickness of the shell for buckling ?? The material of the sheel is steel. Thanks in...
  5. Losty

    Help on lug design requirement

    Does anyone know that this design requirement means for a lug on winch for off-shore application? Lugs designed to be suitable for 40 degree list minimum and an offshore heave acceleration of 2G. Could anyone please specify any standard that explains the above requirements in detail. Thanks...
  6. Losty

    Any advice on project management/documentation control and CRM softwar

    Guys, We are a medium sized engineering company with design, sales, purchaseing, stores, workshop, admin, accounts, testing etc. departments. Now at any points of time, we may be involved in a number of small to big projects. Are ther any softare to integrate the above departments to manage...
  7. Losty

    Constant Line Speed of a Man riderwinch

    Hi All, Jus wondering what sort of automatic control mechanism (through a PLC, i guess) can we use for maintaining Constant line speed on a hydraulic man rider winch. Who are the potential suppliers of such sensors etc. ? Thanks in Advance Losty
  8. Losty

    What is Charge Pressure in Hydrostatic Transmission

    As the title suggest, can you guys shed some light on what is charge pressure and what it does in a hydrostatic transmission ?
  9. Losty

    How to estimate cost of hydraulic tanks ??

    Hi Guys, I work for a hydraulic company and i need to estimate the cost of oil tank of size 100lt, 200lt, 300 lt etc on daily basis. Is there any software that i can use or some references i can follow to work out a budegt price of the above tanks?? I am a mechanical engineer. Thanks Losty
  10. Losty

    Suction Filer Sizing for Gear pumps - Any advice ?

    How do we size up a suction filter for gear pumps ?? Key concerns may include: 1. Pressure drop across the filet 2. Maximum vaccume pressure on the inlet of pump What implication the above factors have on the filter sizing ?? Thanks in advance Losty
  11. Losty

    Matrix calculation problem ...

    it worked..thanks for that But wht B$1*A$2 IS different from B1 * A2 when we copy it across all the other cells ?? What does the $ sign does ? Thanks
  12. Losty

    Matrix calculation problem ...

    Suppose i have some values in the following cells: A1, A2,A3,A4...... B1, C1, D1, E1,...... What i want to do is calculate vales for cells as follows: B2 = B1 * A2/0.85 B3 = B1 * A3/0.85 B4 = B1 * A4/0.85 AND SO ON .. Similarly, C2 = C1 * A2/0.85 C3 = C1 * A3/0.85 C4 = C1 * A4/0.85 AND SO ON...
  13. Losty

    Modularity of Hydraulic power pack - Is it possible??

    Hey guys, Just wondering if anyone has come across the concept of making “MODULAR” fluid power pack? My version of the modular power pack as it exists in my mind is something like this: • A piggy back pump combination: Allows the user to add or remove pumps as per his/her needs • Electric...
  14. Losty

    Help - Flow vs Pipe/tube diameter for Laminar Flow?

    Thanks Bud, That really helped ! Losty
  15. Losty

    Any online reference: PLC for fluid power engineer

    Hye guys, are there any online reference on PLC specifically for fluid power engineers ?? Really basic ones! Thanks in advance Losty
  16. Losty

    Help - Flow vs Pipe/tube diameter for Laminar Flow?

    Hi Guys, Is there any reference/Formula that i can use to work out Pipe/tube size i need for a fluid power system with flow rate, say 100 Lt/min and 200 lt/min. Are these sizes going to be different for SuctionPressure lines ?? Thanks , Losty
  17. Losty

    How do we do it ??

    Goal seek didnt work for me ....any other idea or may be en elaboration on how to use goal seek to achieve what i wanted to :-s Thanks in advance Losty
  18. Losty

    How do we do it ??

    What i want is to do is I have a formula with 4 variables. Now depending upon situation, i may need to calculate either one of them with other three known values. Now what is the easiest way to program this in excel so that at the begining i can select the variable i want to calculate and...
  19. Losty

    Winch Design Rules of Thumb

    Bit more clarification on my previous post, are the two braking mechanism (band abd disc) on the main drum independent? ..and how they are activated in what circumstances. Losty

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