Pressure Response Time for Two-Piston Hydraulic System with Vacuum Space in Tube

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SUMMARY

The discussion focuses on the pressure response time of a two-piston hydraulic system with a vacuum space of 1 Torr between the pistons. When Piston #1 is actuated, the response time of Piston #2, which is connected to a movement sensor, is influenced by the pressure changes in the tube. The speed of sound in the medium and the diameter of the tube are critical factors in calculating this response time. Participants emphasize the importance of understanding fluid dynamics and pressure transmission in hydraulic systems to derive accurate estimations.

PREREQUISITES
  • Understanding of fluid dynamics principles
  • Knowledge of hydraulic systems and their components
  • Familiarity with pressure measurement units, specifically Torr
  • Basic concepts of sound speed in gases and liquids
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  • Research the speed of sound in fluids and its impact on pressure transmission
  • Study the dynamics of hydraulic systems, focusing on piston behavior
  • Learn about pressure measurement techniques and their applications in hydraulic systems
  • Explore the effects of tube diameter on fluid flow and response times
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Engineers, fluid dynamics specialists, and anyone involved in the design or analysis of hydraulic systems will benefit from this discussion.

interceptors2006
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If we had a tube 1 foot long that had two pistons inside it at each end of the tube, Piston #1. and Piston #2. Piston #1. is attached to a hydrolic push Rod, Piston #2. is connected to a movement senser only, the Space between the two Pistons inside the Tube have a Vacuum of 1 Torr between them, Here's the Question, If Piston #1. is actuated in or out what would be the response time that Piston #2. senses movement for both in and out actuation of Piston #1 due to pressure changes caused by the actuation of Piston #1?
 
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What would be your initial guess, and why? You need to show some work of your own in order for us to provide some help.
 
Could it be calculated from the speed of sound? Wouldnt that require also the diameter of the tube?
 

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