Tracer tube structure design and strength analysis based on ABAQUS
During tracer projectile launching,the tracer shell probably bears large plastic deformation under effect of inertia force and high chamber pressure,which affects normally burning of tracer agentia.Therefore,tracer tube is designed to fix and protect tracer.On the premise of strength check results of screw-to-projectile connection thread and tracer shell satisfy requirements under high overload,the stress and strain of tracer shell and tube are analyzed by ABAQUS software under 360 MPa chamber pressure.The simulation results show that the maximum stress of tracer shell is 1 026 MPa,and the strain of tracer shell is 0.8 when tracer is matched with scheme first tube;The maximum stress of tracer shell is 844.7 MPa,and the strain of tracer shell is 0.05 when tracer is matched with scheme second tube.Through analysis,the local deformation of the tracer tube shell can cause the tracer agentia to be fractured and loose when adopting scheme first tube;the tracer agentia strength will not change destructively when adopting scheme second tube.The shooting test results of tracer performance verify the results of ABAQUS software simulation analysis.
tracer tubetracer shellstructure designstrengthstress and strain analysis
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