Magnetorheological damper based on U-shaped coil

• Main Authors: WEI XINXIN, WEN XIAOXIA, DONG KEJIAN, DENG ZHAOXUE
• Format: Patent
• Language: Chinese; English
• Published: 07.12.2021
• Subjects: BLASTING; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; LIGHTING; MEANS FOR DAMPING VIBRATION; MECHANICAL ENGINEERING; SHOCK-ABSORBERS; SPRINGS; THERMAL INSULATION IN GENERAL; WEAPONS

The invention provides a magnetorheological damper based on a U-shaped coil. The magnetorheological damper comprises an inner cavity, an outer cavity, a piston rod and an excitation device. The inner cavity and the outer cavity are of a cylindrical structure, the inner cavity is coaxially and fixedly arranged in the outer cavity, a liquid flow channel used for communicating the two cavities is arranged between the inner cavity and the outer cavity, and the lower end of the piston rod extends into the inner cavity and is matched with the upper end of the inner cavity in a conformal mode. The inner diameter of the upper end of the inner cavity is less than that of the lower end. The excitation device at least comprises an upper U-shaped excitation unit and a lower U-shaped excitation unit, the upper U-shaped excitation unit and the lower U-shaped excitation unit are arranged on the upper side and the lower side of the liquid flow channel respectively, and U-shaped openings of the upper U-shaped excitation unit