The Finite Element Analysis Of The Foundation's Internal Force Of 3-Pier Rotary Kiln

The rotary kiln is rotating around its own axis of the steel cylinder ,containing a firebrick sorts, in which the burning material, Kiln floating on the basis of the supporting wheel, the wheel can rotate with the rotating kiln. The wheel is fixed with the reinforced concrete foundation, Kiln load can be passed to the foundation by the wheel. According to the vibration of the rotary kiln equipment for concrete production, the subject of finite element simulation to large-scale dynamical foundation is put forward in this article. The background is the actual project in the article. The work is on the dynamical characters of the kiln-base-foundation systems. Because of the complexity of the system, we must consider the deformation coordination of the rotary kiln and the foundation.This paper discussed the dynamic analysis principles that exist now, and the research method of the dynamic foundation. I have made a detailed analysis and comparison to the existing theory and carried on the dynamic test to the rotary kiln foundation, put the sensors at the points and then obtain the acceleration time history curve. Screen sizing and analyzing the curve, forming the artificial fluctuation, applying them as the force of the structure.In this paper, I have made a lot of work on the endogen force of the kiln's foundation. I also have read many materials in and abroad about the civil design specification for rotary kiln foundations. Making detailed analysis of the current domestic and international situation and shortcomings. I have studied the theory of knowledge about the problems to be resolved in this paper. Having a comprehensive understanding of the kiln's foundation and superstructure, making a detailed analysis of how the endogen force happens of kiln's foundations, discussing the calculation method of the kiln's foundation, loading time history analysis on the kiln model with the acceleration curve which obtained at the scene. In the analysis we considered the conditions of the normal work, the sedimentation of the foundation, the eccentric of the kiln and got the distribution of the foundation's endogen force. On the base of the method of the finite element, we developed large-scale soft and made parameterizations of the finite element programming. With the visual basic language, we compiled window-interface, set the parameters about the physical dimensions and material properties of the equipment, the kiln's foundation and the geology data of the understructure as the input variables. Through further research, we can achieve the following purpose: guiding the project design, optimization indicators of the kiln's foundations, achieve reasonable economic purpose.We compared with the theoretical calculation, ground testing and finite element simulation analysis; the program can imitate the dynamic response of the kiln's foundation. It also solved some problems of the engineering designing. The results of the finite element calculation can help the structural design of the project, so it has a bright future.