Magnetorheological Shock Absorber Based on Parallel Structure

Abstract

The invention relates to a magneto-rheological shock absorber based on a parallel structure, comprising a shock absorber upper end cover and a shock absorber lower end cover, a spring is connected between the shock absorber upper end cover and the shock absorber lower end cover, the Magneto-rheological dampers are fixed on both sides of the spring, and the three are connected in a parallel structure mode. Among them, the first piston rods of the two magnetorheological dampers are fixedly connected with the upper end cover of the shock absorber, and the two magnetorheological dampers The bases are all fixedly connected with the lower end cover of the shock absorber, the upper end cover of the shock absorber is provided with a second piston rod parallel to the first piston rod of the magnetorheological damper, and the lower end cover of the shock absorber is provided with The second cylinder, the second piston rod extends into the second cylinder, and is slidingly matched with the second cylinder, and both the second cylinder and the second piston rod are located in the spring. The magneto-rheological shock absorber can effectively improve the control range of the damping force, and is beneficial to expand the application space of the magnetorheological shock absorber.

Description

technical field [0001] The invention belongs to the technical field of shock absorbers, and in particular relates to a magneto-rheological shock absorber based on a parallel structure. Background technique [0002] The use of magnetorheological dampers to control structural vibration is one of the research hotspots in vibration reduction technology that has emerged in recent years. It is a controllable damping device. The damping medium of its internal hydraulic cylinder is made of magnetorheological materials, mainly composed of micron-sized The soft magnetic particles of different sizes are mixed with the matrix and the stabilizer. The working principle is to adjust the current in the exciting coil to obtain a magnetic field of different strength, so that the flow characteristics of the magnetorheological material in the damping channel are changed, and this change is continuous. Reversible, that is, once the magnetic field is removed, it becomes a material that can flow a...

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Problems solved by technology

[0003] The magnetorheological shock absorbers developed in the early stage mostly adopt the single-tube structure design, and are mostly used in occasions with large working strokes to take advantage of the continuous and controllable damping of the magnetorheological shock absorber; but the installation of the magnetorheological shock absorber In the occasions where the working space is small or the length of the shock absorber is limited, the adjustable range of the damping force of the magnetorheological shock absorber is often insufficient, which directly affects the performance of the shock absorber and seriously restricts the application range of the magnetorheological shock absorber

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