Design and dynamic characteristics of a double-layer permanent-magnet buffer under intensive impact load

Ge, Jianli; Xie, Xinyu; Sun, Quanzhao; Yang, Guolai

doi:10.1016/j.jsv.2021.116158

Cited by 8 publications

(3 citation statements)

References 31 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Radial basis function neural network and NSGA-II algorithm are used for multi-objective optimization to optimize the structure of ECD. Ge [21] et al proposed a double-layer permanentmagnet axial buffer and conducted an experimental study using a prototype to demonstrate the feasibility of the proposed design. It is shown that this double-layer permanent magnet buffer can greatly reduce the peak value and effectively control the instantaneous strong impact load.…”

Section: Figure 1 Ecd For Vehicle Suspension Systemmentioning

confidence: 99%

Performance Study of a Permanent-Magnet Eddy Current Damper for Guns Recoil Control

Liu

Wang²,

Shen

et al. 2023

J. Phys.: Conf. Ser.

View full text Add to dashboard Cite

Eddy current damper (ECD) is a promising device for dissipating kinetic energy in dynamic systems, this study is conducted to analyze the dynamic characterization and structural optimization of linear ECD under guns launch load. The recoil resistance of ECD under guns launch load is highly nonlinear at high recoil velocity, and the recoil resistance curve shows an increase-decrease-increasing shape like a “saddle”, which is not conducive to the stability of ECD during operation. The effects of several structural parameters on the dynamic characterization of ECD were studied in details. Results show that the air-gap size, the thickness of the magnetic conduction tube and conductive tube all have a notable influence on the recoil resistance curve of ECD. Moreover, BP neural network and genetic algorithm were used for structural optimization and the optimal value was verified by FEM. The optimization results indicate that the “saddle” shape of optimized recoil resistance curve is basically invisible. The fullness of the recoil resistance curve is significantly improved from 84.93% to 92.1%, which guaranteeing a smooth recoil movement. Finally, an impact loading test system for eddy current damper was built and the experimental results were basically consistent with the simulation results.

show abstract

Section: Figure 1 Ecd For Vehicle Suspension Systemmentioning

confidence: 99%

Performance Study of a Permanent-Magnet Eddy Current Damper for Guns Recoil Control

Liu

Wang²,

Shen

et al. 2023

J. Phys.: Conf. Ser.

View full text Add to dashboard Cite

show abstract

“…Previous research on composite base plate generally used finite element methods combined with lightweight composite layer optimization [1], [2]. However, due to the initial stage of research, the uncertainty of structural parameters was ignored [3], [4]. The progress of theory and technology has fully recognized the importance of conflict of objectives and uncertainty, and uncertainty optimization technology has gradually been applied to reliability optimization, topology optimization, vehicle optimization, power system optimization and other fields [5].…”

Section: Introductionmentioning

confidence: 99%

Uncertain optimization for composite base plate of mortar under impact load

Wang¹,

Yang²,

Xu³

2023

Vib. proced.

Self Cite

View full text Add to dashboard Cite

Information warfare places higher requirements on the remoteness, precision and mobility of artillery weapon systems. As an indispensable and important category of artillery, mortar plays an important role. As an important component of mortar, the base plate bears tremendous impact load. Its design level has an important influence on the shooting stability, shooting accuracy and maneuverability of the mortar. Composite base plate helps improve the maneuverability of the mortar, but it will also make the force and movement rule of mortar launching more complex and lead to a more acute contradiction between artillery power and maneuverability, which propose a huge challenge to modern artillery optimization design theory. Under this background, this manuscript conducts research on the structural uncertain optimization of composite material base plate for the mortar. In order to obtain the optimal solution and reasonable interval of uncertain parameters with main dimension parameters, this manuscript uses interval model to carry out deterministic transformation for uncertain objective function and uncertain constraints, combines multi-objective genetic algorithm to solve the problem, and carries out numerical simulation to verify the optimal value. The result shows that the design idea and method are feasible for uncertain optimization of composite base sheet of mortar under impact load, and the optimization objectives and strategies are effective, which can provide reference for the uncertain optimization research of composite base plate.

show abstract

“…Due to the previously mentioned simplicity of construction, they are still the most often used vibration reduction systems [ 8 ]. Another example is the use of the double-layer permanent-magnet buffer [ 9 ]. The authors showed the possibility of damping the vibrations caused by the impact load of the launcher.…”

Section: Introductionmentioning

confidence: 99%

Experimental Studies on Adaptive-Passive Symmetrical Granular Damper Operation

Żurawski

Zalewski

2022

Materials

View full text Add to dashboard Cite

This paper presents experimental studies on a controllable granular damper, whose dissipative properties are provided by the friction phenomenon occuring between loose granular material. In addition, in order to adjust to the current trends in vibration suppression, we built a semi-active device, controlled by a single parameter—underpressure. Such granular structures subjected to underpressure are called Vacuum-Packed Particles. The first section presents the state of the art. A brief description of the most often used intelligent and smart materials for the manufacture of dampers is presented. The main advantages of the proposed device are a simple structure, low construction cost, symmetrical principle of operation, and the ability to change the characteristics of the damper by quickly and suddenly changing the negative pressure inside the granular core. The second section provides a detailed description of the construction and operation principles of the original symmetrical granular damper. A description of its application in the laboratory research test stand is also provided. The third section presents the results of the experimental studies including the recorded damping characteristics of the investigated damper. The effectiveness of the ethylene–propylene–diene grains’ application is presented. The two parameters of underpressure and frequency of excitation were considered during the empirical tests. The influence of the system parameters on its global dissipative behavior is discussed in detail. The damper operation characteristics are close to linear, which is positive information from the point of view of the potential adaptive-passive control process. Brief conclusions and the prospective application of vacuum-packed particle dampers are presented in the final section.

show abstract

Design and dynamic characteristics of a double-layer permanent-magnet buffer under intensive impact load

Cited by 8 publications

References 31 publications

Performance Study of a Permanent-Magnet Eddy Current Damper for Guns Recoil Control

Performance Study of a Permanent-Magnet Eddy Current Damper for Guns Recoil Control

Uncertain optimization for composite base plate of mortar under impact load

Experimental Studies on Adaptive-Passive Symmetrical Granular Damper Operation

Contact Info

Product

Resources

About