LORA COMMUNICATION-BASED DISTRIBUTED VARIABLE DAMPING COMPOSITE VIBRATION REDUCTION SYSTEM AND VIBRATION REDUCTION METHOD

Provided is a LoRa communication-based distributed variable damping composite vibration reduction system and a vibration reduction method. Modal analysis and harmonic response analysis are performed based on a finite element technology. Vibration isolator selection software in an integrated control platform is used to analyze a vibration isolation effect and jointly guide vibration isolator selection. According to the present invention, a spring magnetic fluid composite vibration isolator and a rubber magnetic fluid vibration isolator are designed respectively for a power device and a pipeline; a monitoring device integrated with a LoRa wireless transmission technology is used to transmit data to the integrated control platform; parameters are observed, set and regulated and controlled on line by the integrated control platform; a mathematic relationship model between a stiffness and a current is established; a programmable logic controller (PLC) is used for targeted programming according to a control requirement; and an automatic vibration control system is established through PID feedback control, so that the intelligent and visual management of machine room vibration and noise control is realized, and a vibration reduction control mode combining active control with passive control is realized.