학술논문

Input modeling for active structural elements - extending the established FE-Work?ow for modeling of adaptive structures
Document Type
Conference
Source
2020 IEEE/ASME International Conference on Advanced Intelligent Mechatronics (AIM) Advanced Intelligent Mechatronics (AIM), 2020 IEEE/ASME International Conference on. :1595-1600 Jul, 2020
Subject
Aerospace
Bioengineering
Communication, Networking and Broadcast Technologies
Components, Circuits, Devices and Systems
Computing and Processing
Engineered Materials, Dielectrics and Plasmas
Engineering Profession
General Topics for Engineers
Power, Energy and Industry Applications
Robotics and Control Systems
Signal Processing and Analysis
Transportation
Actuators
Force
Mathematical model
Adaptation models
Load modeling
Dynamics
Buildings
Language
ISSN
2159-6255
Abstract
A major part of the world’s resource consumption, waste production and green house gas emissions is due to the construction sector. Ultra-light weight structures can be very resource efficient, but do require active elements to withstand all occurring loads. This contribution presents different principles for activating conventional civil engineering structures. Specifically, serial and parallel actuation are considered, where each actuator is assumed to be either force- or positioncontrolled in an underlying control-loop. Modeling of the actuator integration is based on the classic FE-workflow, with mass- and stiffness-matrix obtained from the assembly step of the FE-analysis. We show how to integrate the input models for the different actuation principles and transform the input from one type to another, such that the input modeling can be separated from the preceding assembly step. These models will be used to gain insights into when to use what kind of actuation type in the design step. Numerical results show the feasibility of the proposed input models and the idea of saving mass with adaptive structures in general, while at the same time supporting the derived design recommendations based on the pros and cons of the different types of mechanical integration.