Akademik Veri Yönetim Sistemi
Tezin Türü: Yüksek Lisans
Tezin Yürütüldüğü Kurum: Orta Doğu Teknik Üniversitesi, Mühendislik Fakültesi, Makina Mühendisliği Bölümü, Türkiye
Tezin Onay Tarihi: 2014
Tezin Dili: İngilizce
Öğrenci: Erdem Canik
Danışman: MEHMET ÇALIŞKAN
Özet:Shock absorbing pistons, as the absorbers of the instantaneous shocks and the recoil forces of weapon systems embodying them, are subjected to very high forces. The pistons are required not only to decrease the recoil forces down to favorable values for the other components of the system to function properly and the operator to operate the system comfortable, but also they should not be destructively rigid considering the dynamics of the weapons. The majority of the shock absorber producers in the local market are suppliers for automotive industry. Considering the life of the items and the loads that they are to be subjected to, the shock absorbers aimed at automotive systems, cannot be satisfactorily integrated to weapon systems. The dependence on foreign market, as an inevitable result of the insufficiently qualified local suppliers, introduce serious handicaps for the engineering developments where weapons, systems or applications alter; furthermore, is problematic by limiting the shock absorbance capability of the systems since the optimization of these items are out of the clearance of system design and development engineers. This study; whereby the most efficient piston design, convergent to the ideally desired shock absorbance, is aimed to be obtained by the alteration of design parameters, namely fluid properties, orifice geometry and spring properties, will both provide an opportunity to carry out flexible and unique design by vi absorbing recoil forces to lower the effective force down to the levels which would let the other components work properly and operator to control the system comfortably, and end up the dependence on the foreign market. In the scope of this study, fluid properties, orifice geometry and spring properties are to be investigated for their relation with the shock absorbance characteristics of the piston and the conclusions are to be validated by tests. The software to be developed is aimed to have the capability to finalize the full mathematical modeling of a shock absorber using the recoil force, the desired remainder force after shock absorbing and the correlation coefficients that are to be obtained by tests to validate the mathematical model during its development. The end product of the study is aimed to be a shock absorber that is designed by the software, produced and validated and is going to be used in the present weapon systems.