Design and analysis of a scheme for the naval gun test shell entering the bore

Liu, Xin-yun; Wu, Dalin; Hou, Jian

doi:10.1016/j.dt.2020.07.007

Cited by 7 publications

(3 citation statements)

References 5 publications

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“…Firstly, the quasi-static motion of the damper was simulated, which is a typical experimental process [1], [3], [14] and carried out on the INSTRON5982 universal testing machine, as shown in Fig. 10.…”

Section: B Quasi-static Cfd Results and Experimental Verificationmentioning

confidence: 99%

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Performance Evaluation of Dampers Under Dynamic Impact Based on Magnetic Field FE and CFD

Liu

2020

IEEE Access

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It is necessary to install a damping energy absorbing structure for a certain type of naval gun test shell without projectile belt. Applicable high-performance dampers currently include viscoelastic colloidal damper and magnetorheological damper, and two kinds of special dampers for test shells have been designed and manufactured. In order to evaluate the mechanical properties of these two dampers under dynamic impact, a one-way coupling numerical method was proposed for simulation and analysis. Quasistatic experiments were used to verify the model based on magnetic field finite element (FE) and computational fluid dynamics (CFD). The model is also characterized by passive dynamic mesh and userdefined functions (UDF) based on C language. The results showed that the CFD models of both dampers were accurate. Though the colloidal damper is simpler in structure and lower in the cost, the MR damper has more significant damping and higher energy absorption ratio under impact. Compared with colloidal damper, MR damper is characterized by long working time, multiple vortices, chaotic streamlines and more uniform temperature distribution. When the power was continuously applied, the velocity of the impacted MR damper dropped to zero within 80ms, and the piston finally stopped at a stroke of 1.3mm. The colloidal damper reset within 8ms, and the reset velocity was 1.1m/s. In this study, the performance evaluation results of the two dampers were obtained, and the latest numerical methods for the mechanical performance analysis of colloidal dampers and MR dampers under dynamic impact were provided.

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Section: B Quasi-static Cfd Results and Experimental Verificationmentioning

confidence: 99%

“…However, without the deformation and friction of the belt, excessive rebound velocity will cause the failure of closing breechblock, which may result in the failure of live shell simulation. Therefore, the damping structure inside test shell is necessary [14]. Fig.1 shows the positional relationship among test shell, barrel and damper.…”

mentioning

confidence: 99%

Performance Evaluation of Dampers Under Dynamic Impact Based on Magnetic Field FE and CFD

Liu

2020

IEEE Access

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“…Ouyang ve arkadaşları sahra silahının geri tepmesini azaltmak için yeni bir manyetoreolojik sönümleyicinin kontrol edilebilirlik analizini ve testini gerçekleştirmişlerdir [8]. Liu ve arkadaşları ., 2021) hedefe giren deniz silahı test mermisi için bir tasarım planı ve analizi üzerine çalışmışlardır [9]. Noh ve arkadaşları otomatik tabanca için geri tepme sistemi analiz modeli geliştirmesini incelemişlerdir [10].…”

Section: Figure 1 Notation Of Forcesunclassified

Si̇lah Geri̇ Tepme Ve Şahlanma Test Maki̇nasi Tasarimi Ve Si̇mulasyonu

KOÇ>

Tınkır

2023

Konya Journal of Engineering Sciences

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Ateşli silahların tasarımında mekanizma parçalarının ve tahrik sistemlerinin enerji ve kuvvet hesaplamaları, silahın konforu ve etkinliği açısından hayati önem arz etmektedir. Silah uzuvlarında oluşan kuvvetlerin bilinmesi, uzun ömürlü parçaların tasarımına olanak sağlar. Otomatik silahlarda patlamadan sonra açığa çıkan enerjinin bilinmesi ise gaz deliği çapının ve konumunun optimum hesaplanmasını mümkün kılar. Bu hesapların sonucunda daha konforlu ve performansı yüksek silahlar tasarlanabilir. Bu çalışma kapsamında; silah ateşlenmesinde oluşan tepme kuvvetini ve şahlanma momentini ölçebilen, iki serbestlik dereceli, gelen kuvvetleri sönümleyebilen rijit bir test makinasının Ansys/Workbench programı kullanarak yapısal analizleri, özgün tasarımı ve MATLAB/Simulink ile PID konum kontrol simülasyonları gerçekleştirilmiştir. Ayrıca test makinasının prototip imalatı için oldukça önemli teknik bulgular elde edilmiştir.

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Analysis of Inspection and Maintenance Methods for Thermal Power Plant

Chen

Wang

et al. 2023

Lecture Notes in Electrical Engineering

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Design and analysis of a scheme for the naval gun test shell entering the bore

Cited by 7 publications

References 5 publications

Performance Evaluation of Dampers Under Dynamic Impact Based on Magnetic Field FE and CFD

Performance Evaluation of Dampers Under Dynamic Impact Based on Magnetic Field FE and CFD

Si̇lah Geri̇ Tepme Ve Şahlanma Test Maki̇nasi Tasarimi Ve Si̇mulasyonu

Analysis of Inspection and Maintenance Methods for Thermal Power Plant

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