A Magnetoelectric Hybrid Hydraulic Damper for the Mining Robot Suspension System

Abstract

In order to improve the damping and controllability of the mining robot suspension system, a new magnetoelectric hybrid suspension hydraulic damper, which is a semiactive suspension damper, is proposed based on the traditional hydraulic damper by introducing the magnetic-electric hybrid suspension structure. The structure and working principle of the damper are introduced, respectively, and the mathematical models of the equivalent stiffness and equivalent damping of the system are calculated by the magnetic circuit method and the oil circuit method, while AMESim/Simulink cosimulation is carried out. In order to test the damping performance, a prototype of the magnetoelectric hybrid suspension hydraulic damper was fabricated. The results show that the vibration displacement amplitude can be reduced by 20% and the vibration acceleration amplitude can be reduced by 10% by adjusting the stiffness and damping of the system due to the magnetoelectric hybrid suspension structure. Moreover, the experimental results are consistent with the simulation results, which verify the effectiveness and superiority of this type of damper.

Development of an Impact Energy Absorption Structure by an Arc Shape Stroke Origami Type Hydraulic Damper

“…where m is the mass of the mass block, k is the bending stifness of the cantilever beam calculated using equation (17), and a 1 and a 2 are the adjacent amplitude values, as shown in Figure 10. Te results of equation (18) indicate that the frictional linear viscous damping coefcient of the origami hydraulic damper was 0.1 Ns/m.…”

“…In the construction industry, the effectiveness of installing semiactive hydraulic dampers along the diagonal direction of the rectangular frame of a main structure has been verifed to reduce the damage to buildings and bridges caused by earthquakes [14][15][16]. In addition, magnetorheological (MR) dampers, which use a magnetic feld, have been developed to improve the performance of cylinder-type hydraulic dampers, and several research results have been published [17][18][19][20][21][22].…”

Stability analysis of the food delivery robot with suspension damping structure

“…The suspension shock absorption structure [12] , [13] , [14] , [15] is the main method for wheeled mobile robots to carry out obstacle reduction and improve terrain adaptability. The suspension structure is mainly divided into two parts: active adaptive suspension and passive adaptive suspension.…”