Journal of Electrical Engineering and Automation

The noise of packaging equipment has a certain impact on the labor health of operators, and there are some achievements in the research of noise reduction measures in the industry. Most of them use acoustic absorption materials and sound source isolation measures as the main noise reduction means, but the effect and cost-effectiveness ratio need to be further improved. The passive dynamic vibration absorption system proposed in this paper can be integrated with traditional noise reduction technology. To achieve the purpose of comprehensive control of noise occupational hazards. The main research object of this paper is the cigarette packaging equipment of tobacco processing enterprises, and a passive dynamic vibration absorption system is proposed. After collecting noise and vibration signals of the unit, the system software analyzes and sends stiffness adjustment instructions to the dynamic vibration absorber to change vibration absorption parameters and suppress vibration at key positions to reduce noise radiation. Based on the preliminary field investigation, this paper collects the noise base frequency data to determine the noise type and source, establishes the mathematical model of the passive dynamic vibration absorption system, expounds the composition structure and related principles of the dynamic vibration absorption system from the aspects of the principle of the dynamic vibration absorption system, variable stiffness technology and control algorithm, and provides a new idea for noise control.

Dynamic vibration absorption; Variable stiffness technology; Control algorithm