Active Suspension Method and Active Vibration Control of a Hoop Truss Structure

作者：Ma Guoliang^*; Gao Bo; Xu Minglong; Feng Bo

来源：AIAA Journal, 2018, 56(4): 1689-1695.

DOI：10.2514/1.7056746

The hoop truss structure is an indispensable structure of communication satellite antennas. Because the hoop truss structure can deform and seriously vibrate, a ground test is essential before application. This paper first introduces an active suspension method of lifting the structure. Voice coil actuators are used to output an Ampere force that balances the gravity of the structure. Under the condition that the two damped frequencies of the suspension structure and no-suspension structure are equal to each other, the active suspension method is available on the ground. Active vibration control is then investigated to suppress vibration responses. According to a proportional-plus-derivative algorithm and fuzzy algorithm, the control force is calculated and generated by another voice coil actuator. Finally, excitation and closed-loop control experiments are conducted to suppress the nod mode vibration under transient excitation and steady-state excitation. Experimental results show that the actuator effectively suppresses the nod mode vibration of the hoop truss structure.

• 出版日期2018-4
• 单位西安交通大学