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2020, vol. 70, br. 2, str. 22-28
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Analiza stabilnosti sagorevanja kompozitnih raketnih goriva sa oktogenom
Combustion stability analysis of composite propellants with octogen
Ključne reči: čvrsto kompozitno raketno gorivo; oktogen; balistika; nestabilnost sagorevanja
Sažetak
U ovom radu prikazano je istraživanje u oblasti sagorevanja čvrstog kompozitnog raketnog goriva sa različitim udelom oktogena (NMH) odnosno izvršena je analiza kako bi se utvrdilo pri kojem nivou radnog pritiska dolazi do pojave nepravilnog sagorevanja goriva i koji su njegovi efekti. Udeo NMH povećavan je u sastavu goriva u poređenju sa oksidatorom, amonijum-perhloratom (AR). Stabilnost sagorevanja raketnih goriva poboljšana je dodatkom titan(IV)-oksida u sastave uz održavanje optimalno definisanog odnosa dve frakcije korišćenog oksidatora. Određeni su parametri u zakonu brzine sagorevanja, p-t dijarami su analizirani i međusobno poređeni.
Abstract
Research of operating pressure levels with irregular combustion and the effect on combustion instability of composite solid propellants with different quantity of octogen (HMX) are presented in this paper. The content of HMX increased in relation to the oxidant, ammonium perchlorate (AP). Combustion stability of the propellants was improved by adding titanium (IV) oxide powder and through the optimal projected ratio of two oxidizer fractions. Parameters of burning rate laws were determined and p-t diagrams were observed and compared.
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