Analysis of magneto-rheological fluid chamber in hydraulic accumulator with adaptive parameters

Aimed at a variable-parameter hydraulic accumulator prototype(its inflation pressure,inflation volume,damping coefficient of working medium and inlet structural parameters can be adjusted according to real-time operation condition and taking magneto-rheological fluid as its main working medium,the damping coefficient of the proto type was adjusted in real time with the help of changing the working chamber with magneto-rheological fluid to satisfy the requirements of different system dynamic characteristics.The structure of the chamber with magneto-rheological fluid and its external magnetic circuit of electromagnetic coil was investigated emphatically.The mathematical model of this part was set up on this basis and,by combining it with the whole model of the variable-parameter hydraulic accumulator prototype,a theoretical analysis of the working chamber was performed.Finally,the correctness of structure design and theoretical analysis was verified by means of experiment.