National Repository of Grey Literature 8 records found  Search took 0.01 seconds. 
Comparison of the effect of the two-mass and hydraulic buffers on the impact of the self-loading rifle
Talanda, Jakub ; Blaťák, Ondřej (referee) ; Vančura, Jan (advisor)
The focus of this thesis are the effects of dual-body and hydraulic recoil buffers on measured recoil of an AR-15 type self-loading rifle. The first part explains the working principles of the rifle and both mentioned buffer designs and points out the sources of the recoil effect. A brief summary of contemporary knowledge and already conducted research into the problem follows. The second part describes an experiment in which the recoil force was measured using a force sensor placed between the rifle butt and shooter’s shoulder. At the end, outcomes of this research are discussed and results obtained for both buffer designs are compared.
Recoil forces measurement after shot
Juráň, Radovan ; Prokeš, Aleš (referee) ; Frýza, Tomáš (advisor)
The thesis focuses on designing device for recoil forces measurement. First part – the semestral project of winter semester 2016/2017 – was focused on the hardware design. Programming of the firmware and also the software for getting data to PC was created in the summer semester to complete the bachelors thehis as a whole.
Design of action mechanisms
Krejčí, David ; Prokeš, František (referee) ; Černý, Michal (advisor)
The purpose of this bachelor’s thesis is to describe the constructional philosophy of today’s firing mechanisms. This thesis includes the summary of various action mechanisms and the basis needed for solving these mechanisms.
Suppression of recoil in military equipment
Novák, Ondřej ; Žáček, Jiří (referee) ; Klapka, Milan (advisor)
The bachelor´s thesis focuses on dampening the recoil force generated by gunshots in military technology. For this purpose, several methods are currently used, which however limit the possible capabilities of firearms with respect to their accuracy and fire rate effective while being inadaptable to variations in the firing cycle. The goal of this thesis is therefore the compilation of currently used methods and subsequent selection of areas where these methods could be substituted or amended by applying magnetorheological technology. In the first phase a research study was carried out describing the technical solutions currently in use for recoil dampening. Approximate values of recoil brake forces and energies for a commonly used weapon system was also included. In the discussion part of the thesis, the research was then evaluated with respect to the possible application of magnetorheological dampening elements. The main areas suitable for the use of this technology are large-caliber cannons and automatic cannons, in which their use could improve their accuracy and increase the controllable rate of fire while limiting the load on the carriages of these weapons. Based on this thesis, further research may be carried out, focusing on a comprehensive analysis and modelling of magnetorheological buffer use in of the mentioned areas.
Electromagnetic recoil system for simulated weapons
Vladík, Jakub ; Jirgl, Miroslav (referee) ; Baštán, Ondřej (advisor)
Main goal of this work is to analyze the feasibility of an electromagnetic recoil simulator on weapon replicas. The thesis explains the basic function of self-loading firearms based on the HK 416 weapon and then the concept of recoil and its meaning. Lists today's recoil compensation options. It then defines possible electromagnetic solutions as a replacement for the existing pneumatic recoil system. Some posibble solutions mentions DC motor, solenoid, linear motor and railgun as possible. The thesis lists DC motor, solenoid, linear motor and railgun as possible solutions. The best solution is a tubular linear motor combined with a power supply containing Li-pol batteries.
Comparison of the effect of the two-mass and hydraulic buffers on the impact of the self-loading rifle
Talanda, Jakub ; Blaťák, Ondřej (referee) ; Vančura, Jan (advisor)
The focus of this thesis are the effects of dual-body and hydraulic recoil buffers on measured recoil of an AR-15 type self-loading rifle. The first part explains the working principles of the rifle and both mentioned buffer designs and points out the sources of the recoil effect. A brief summary of contemporary knowledge and already conducted research into the problem follows. The second part describes an experiment in which the recoil force was measured using a force sensor placed between the rifle butt and shooter’s shoulder. At the end, outcomes of this research are discussed and results obtained for both buffer designs are compared.
Recoil forces measurement after shot
Juráň, Radovan ; Prokeš, Aleš (referee) ; Frýza, Tomáš (advisor)
The thesis focuses on designing device for recoil forces measurement. First part – the semestral project of winter semester 2016/2017 – was focused on the hardware design. Programming of the firmware and also the software for getting data to PC was created in the summer semester to complete the bachelors thehis as a whole.
Design of action mechanisms
Krejčí, David ; Prokeš, František (referee) ; Černý, Michal (advisor)
The purpose of this bachelor’s thesis is to describe the constructional philosophy of today’s firing mechanisms. This thesis includes the summary of various action mechanisms and the basis needed for solving these mechanisms.

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