Hysteresis in column systems

6th International Workshop on Multi-Rate Processes and Hysteresis

Ivanyi, P.^1 ; Ivanyi, A.^1

Pollack Mihaly Faculty of Engineering and Information Technology, University of Pecs, H-7624, Hungary^1

关键词: Bell towers;    Column systems;    Crank-Nicolson;    Cycling load;    Hysteresis properties;    Non linear;    Preisach hysteresis model;    Rotational spring;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/585/1/012005/pdf
DOI  :  10.1088/1742-6596/585/1/012005

来源: IOP

【 摘 要 】

In this paper one column of a telescopic construction of a bell tower is investigated. The hinges at the support of the column and at the connecting joint between the upper and lower columns are modelled with rotational springs. The characteristics of the springs are assumed to be non-linear and the hysteresis property of them is represented with the Preisach hysteresis model. The mass of the columns and the bell with the fly are concentrated to the top of the column. The tolling process is simulated with a cycling load. The elements of the column are considered completely rigid. The time iteration of the non-linear equations of the motion is evaluated by the Crank-Nicolson schema and the implemented non-linear hysteresis is handled by the fix-point technique. The numerical simulation of the dynamic system is carried out under different combination of soft, medium and hard hysteresis properties of hinges.