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1. (WO2018121161) MATRIX TYPE SHOCK ABSORBER WITH PARALLEL CAPILLARY TUBES AND VARIABLE SYSTEM NATURAL FREQUENCY

Pub. No.:    WO/2018/121161    International Application No.:    PCT/CN2017/113373
Publication Date: Fri Jul 06 01:59:59 CEST 2018 International Filing Date: Wed Nov 29 00:59:59 CET 2017
IPC: F16F 13/00
F16F 9/34
Applicants: SOUTH CHINA UNIVERSITY OF TECHNOLOGY
华南理工大学
Inventors: RONG, Qiang
容强
Title: MATRIX TYPE SHOCK ABSORBER WITH PARALLEL CAPILLARY TUBES AND VARIABLE SYSTEM NATURAL FREQUENCY
Abstract:
A matrix type shock absorber with parallel capillary tubes and variable system natural frequency. On a pipeline between oil transportation ports of an upper oil tank (14) and of a lower oil tank (16), a capillary tube parallel type damping association section and a capillary tube parallel type system natural frequency association section are sequentially connected from top to bottom. The capillary tube parallel type damping association section comprises four capillary tubes connected in parallel, and each capillary tube is connected with an electromagnetic valve in series for controlling the operation of the capillary tube. The capillary tube parallel type system natural frequency association section comprises four capillary tubes connected in parallel, and the four capillary tubes each are connected with an electromagnetic valve in series for controlling the operation of the capillary tube. The diameter of a frequency adjusting section minimum capillary tube is far greater than that of a resistance adjusting section capillary tube. In a matrix type operating state table, a configuration value Smn of the electromagnetic valve of a frequency adjusting section is selected according to situations, and the problem of non-adjustable system natural frequency of a hydraulic shock absorber of a vehicle or a small adjustable range can be resolved by means of changing mass. Also provided is a method for operating a matrix type shock absorber with parallel capillary tubes and variable system natural frequency.