In this tutorial we went through a typical Interior Ballistics study with an existing PRODAS model. We showed how the model's Geometry produced some of the key inputs. We also used Reference books to quickly define the gun tube, ignitor and propellant analysis inputs.

Using the Empirical Interior Ballistics in PRODAS, we have been able to estimate the muzzle velocity of the projectile at about 1040 m/sec using only:

• Projectile Mass
• Chamber Volume
• Barrel Length (In Bore Travel Distance)
• Average Peak Pressure
• Charge Mass

With the Modified Baer-Frankle Numerical Integration Interior Ballistics in PRODAS, we simulated the combustion of a propellant offering a close approximation to the desired solution, demonstrated the Optimization Routine to vary the propellant web size to match a desired peak pressure, simulated performance in new and worn gun barrels by varying the projectile free run to the rifling.

The Modified Baer-Frankle Numerical Integration Interior Ballistics can help the user:

• Select an appropriate propellant for an intended application.
• Recommend change to propellant geometry for an intended application.
• Assess the effect of worn gun barrels on Peak Pressure, Muzzle velocity, Peak Torque delivered to the rotating band and band wear.
• Generate a structural forcing function for subsequent analyses within PRODAS and external to PRODAS

Top  Back 

© 2002 Arrow Tech Associates