Development of firearm silencers with spherical baffles
Journal Title: Технічна механіка, Техническая механика, Technical Mechanics - Year 2017, Vol 3, Issue 3
Abstract
The aim of this work is to develop promising multi-chamber firearm silencers with spherical baffles. To achieve this objective, the advisability of using spherical baffles in the powder gas energy absorber has been sub-stantiated. It is shown that the sound suppression efficiency can be calculated taking into account the arrangement of the baffles. New designs of high-efficiency silencers for firearms of different calibers have been developed. The novelty of the work performed is confirmed by four Ukrainian patents for an invention and the results of full-scale comparison tests of silencers with conical, spherical, and flat baffles. A comprehensive evaluation of the performance of silencers with spherical baffles with account for the field conditions of their application has shown their high efficiency and competitive ability in comparison with their foreign counterparts. The practical importance of the work performed lies in the feasibility of high-efficiency firearm silencers distinguished from their existing counterparts by their small mass and improved fabrication technique.
Authors and Affiliations
O. Pylypenko, N. Konovalov N. , V. Kovalenko V. , D. Semenchuk
Semiempirical technique for determining coefficient of liquid inertia resistance due to inverse flows at inlet of centrifugal inclined Archimedean screw pump
The paper deals with return flows at inlet of centrifugal inclined Archimedean screw pumps of liquid rocket propulsions (LRP) affecting the LRP dynamic characteristics. At present experimental dependencies of fluid oscil...
Mathematical model of interactions between railway and track considering distributions of contact forces throughout contact spots.
The work objective was to develop a mathematical model of interactions between the railway vehicle and the track considering the distribution of contact forces of the wheel-rail pair throughout contact spots. The meth...
Studies of effects of variations in parameters of controlled rocket object on flying range.
The problem of the study of the parametric sensitivity of the target-oriented functional – the flight distance – as one of the efficiency factors of the controlled rocket to the deviation of the design and trajectory par...
Qualitative assessment of mechanical fixation of metatarsal after the chevron corrective osteotomy in Hallux Valgus
Hallux valgus is one of the most widespread diseases, which is still not clearly understood. Complications and recurrences occurring in the surgical treatment of hallux valgus call for a deeper insight into the postopera...
Space debris: the aspects of the problem
The aim of this work is a system analysis of the engineering features of the deorbiting of space debris frag-ments. New results reflect a possibility to change the concept of near-Earth space debris mitigation from spac...