Effects of Components on Smoke Signature of CMDB Propellant

In order to study the effects of different contents on smoke signature of composite modified double-base propellant(CMDB),theoretical performance of the propellant was calculated based on the principle of free-energy minimization and eigenvalue model of primary and secondary smokes. The effects of solid content,oxygen content,Al content,Lead 3-nitro-1,2,4-triazol-5-onate(NTO-Pb) content and different explosive on smoke signature of the propellant were analyzed. The results show that theoretical specific impulse of the propellant is the greatest and secondary smoke signature of the propellant is minimal while adding 3,4-Dinitrofurazanfuroxan(DNTF). The content of Nitrocellulose(NC),Nitroglycerin(NG) and Cyclotrimethylenetrinitriamine(RDX) have slight influences on the smoke signature of the propellant. The propellant containing4% Al is critical point of BA and CA department of primary and secondary smoke. In order to meet the demand with minimum smoke,the propellant of NTO-Pb content should be less than 3%.