Distributed Model Predictive Control Method for Structural Vibration Based on Substructure Technology

Abstract

The invention discloses an intelligent tensegrity structure vibration multi-level distributed model prediction control method based on a substructure technology. The method comprises the following steps: S1, building an intelligent tensegrity structure distributed model prediction control system; S2, based on the substructure technology, decomposing the intelligent tensegrity structure distributedmodel prediction control system into a series of multi-level subsystems; S3, selecting substructure systems at different levels, and independently designing corresponding local subcontrollers; S4, considering input saturation constraints, and converting the original distributed model prediction control problem into a series of linear complementary problems; and S5, solving the linear complementary problem in the step S4, and obtaining input voltage of each subcontroller as well as controlled dynamic response. Compared with existing distributed model prediction control, the method disclosed bythe invention is based on the substructure technology, a decomposition modeling process on the whole structure system is more flexible and simpler, and the method has a uniform multilevel distributedframework.

Description

Technical field [0001] The invention relates to the technical field of vibration control analysis of a tensioned overall structure, in particular to a multi-level distributed model predictive control method for the vibration of an intelligent tensioned overall structure based on sub-structure technology. Background technique [0002] As early as the 1960s, American scholar Fuller put forward the concept of "Tensegrity". The tensioned overall structure is a spatial network active structure in a self-stressed state, which uses internal tension and compression. The components interact to maintain a stable working state. Due to the high strength-to-mass ratio, good self-adaptive ability, and low control energy consumption of the tensioned overall structure system, the dynamic analysis and control research of this kind of structure system has become the civil engineering, machinery, aerospace And other frontier hot issues in the field of practical engineering. [0003] In the actual a...

AI Technical Summary

Problems solved by technology

This method integrates substructure technology and distributed control ideas to solve the vibration control problem of intelligent tensegrity structures considering input saturation constraints. Flexible decomposition of the overall structural system, and a more reasonable selection of actuator layout schemes and different levels of predictive models

Images