Solving Hydraulic Cylinder Issue: 100N Force at 4m/sec, Stroke 128mm

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Discussion Overview

The discussion revolves around a hydraulic cylinder setup that generates a force of 100N at a speed of 4m/sec, with a stroke length of 128mm. The main question is how to convert this linear force to torque for driving a cylindrical roller at a speed of 1465rpm.

Discussion Character

  • Technical explanation, Debate/contested

Main Points Raised

  • Murali seeks assistance in calculating the torque that can be delivered by the hydraulic cylinder for the specified conditions.
  • Another participant suggests writing an energy balance equation, proposing the relationship between force, velocity, torque, and angular velocity without accounting for inertia and losses.
  • A different viewpoint expresses concern about the practicality of driving a cylinder at such a high speed, suggesting that using a motor coupled to the cylinder might be a better approach.

Areas of Agreement / Disagreement

Participants have differing opinions on the method of driving the cylindrical roller, with some focusing on calculations and others questioning the feasibility of the proposed setup. No consensus has been reached regarding the best approach.

Contextual Notes

The discussion does not clarify assumptions regarding losses, inertia, or the specific mechanics of the hydraulic system, which may affect the calculations and proposed solutions.

Murali_1972
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hi everyone,

i am a new entrant to this forum. can anyone help me to solve this issue.

i have a hydraulic cylinder arrangement which delivers 100N force at 4m/sec with a stroke length of 128mm. i need to convert this linear force to run a cylindrical roller.

what will be the torque it can deliver if the cylindrical roller needs to run at 1465rpm.

thanks
murali
 
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hi everyone,

if anyone can help to solve this, i will be very thankful.if any other details are also needed for solving this, please let me know so that i can try to provide the same.

thanks,
R.Murali
 
Try to write an energy balance without considering inertia contribute and losses (force*velocity=torque*ang_velocity).

M
 
This sounds like a poor way to drive a cylinder so quickly; I personally would use a motor coupled to it's end. If the driven cylinder is going 1465 rpm, that means the hydraulic cylinder would have to be going the same speed which is fantastically fast for something like that...
 

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