Physics of spring airgun cylinder system?

In summary, the speaker is discussing their newfound interest in CAD and drafting designs for airguns. However, they lack an understanding of the math behind the designs and are unsure if they are getting too advanced. They also mention wanting to learn how to calculate pressure in a system with a Force of 550 Newtons applied. They provide information about the system volume, piston volume, barrel volume, and the change in volume at the piston peak. They clarify that the gas inside the system is at sea level atmospheric pressure and have attached an image for reference. They ask for any additional information and express their willingness to elaborate if needed. The response summarizes that if the 550N force is at the end of the stroke, the pressure can be calculated by
  • #1
StrSpeed
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So recently I became more interested in CAD and i found myself drafting designs for spring airguns cylinders ect. All of-course meaningless given that I have zero understanding of the math behind the design. I am no Mechanical engineer, I am a business student so if I am getting into advanced stuff here let me know but I still intend on giving it my best..

/end rant/

Essentially I would like to understand how to calculate the pressure in a system when a Force of 550 Newtons is applied to it.

System volume: 37464
Piston(Right Cylinder) Volume: 24543 mm
Barrel(Right Cylinder) Volume: 12921mm
Change in Volume at piston peak: 24543

The gas inside the system is at sea level atmospheric pressure

I have also attached an image for reference!

if I am leaving anything out please let me know and Ill attempt to elaborate more!
ip47l2.jpg
 
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  • #2
If the 550N force is the force at the end of the stroke then the pressure is simply force divided by piston area.
 

1. What is the purpose of the spring in a spring airgun cylinder system?

The spring in a spring airgun cylinder system serves as the power source for firing the gun. When the gun is cocked, the spring is compressed, and when the trigger is pulled, the spring releases its energy to propel the pellet forward.

2. How does the spring affect the velocity and accuracy of the airgun?

The type and strength of the spring used in an airgun can greatly impact its velocity and accuracy. A stronger spring will result in a higher velocity, while a weaker spring will result in a lower velocity. However, a stronger spring may also make the airgun more difficult to cock, which can affect accuracy.

3. What factors determine the amount of force generated by the spring in an airgun?

The amount of force generated by the spring in an airgun is determined by its type, length, and diameter. The type of metal used in the spring also plays a role, as well as the amount of tension applied when the spring is compressed.

4. How does the air pressure in the cylinder affect the performance of the airgun?

The air pressure in the cylinder is crucial for the performance of an airgun. The higher the pressure, the greater the force with which the pellet will be propelled. However, too much pressure can cause damage to the airgun, and too little pressure will result in a weaker shot.

5. Can the spring be replaced or modified to improve the performance of the airgun?

Yes, the spring in an airgun can be replaced or modified to improve its performance. However, it is important to consult a professional or refer to the manufacturer's guidelines before making any modifications, as improper changes to the spring can cause damage to the airgun and potentially be dangerous.

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