| Screening machinery in the production and living in all areas have a wide range of applications,but the face of growing demand,the traditional screening machinery has been unable to meet.The traditional sieving mechanical screening efficiency is low,screening sieve is easy to be blocked,the shortcomings of modern society in the production and processing has become increasingly evident.Chaos theory is a new theory that was proposed in the last century,and it has been found in the predecessors that chaotic vibration has a greater advantage over traditional machinery than the traditional machinery,better screening efficiency,greater Processing capacity,stronger penetration rate.In this paper,a novel three-translational chaotic vibrating screen with integrated parallel mechanism and chaotic vibration theory is proposed in this paper.The kinematic characteristics and concrete structure of ADAMS,MATLAB and ANSYS software are analyzed by ADAMS dynamic virtual prototype simulation software.The structure of the vibrating screen is optimized based on TRIZ theory.Specific work is described below:The first step:The three-degree-of-freedom chaos vibrating screen is designed according to the requirements,and the three-dimensional model,the mathematical and the dynamic model are created.The dynamic analysis of the vibrating screen is carried out by the knowledge of the topological mechanism,and the DOF degree is three translations.The mathematical kinematics model is analyzed and the parameters and solutions of each chaotic motion equation are obtained.The second step is simple the three-dimensional model of three-degree-of-freedom chaotic vibrating screen.Then,the simplified model is simulated by ADAMS,and the response data of each direction are excited.The third step:using MATLAB and ADAMS post-processing module to simulate the data obtained by chaos identification to determine whether the vibration system has entered the chaotic state at work.The fourth step is based on the TRIZ theory to optimize the amplitude adjustment of the initial design of the three-degree-of-freedom chaotic vibrating screen,and enhance the generality of the vibrating screen.The fifth step is Six-step modal analysis of three-degree-of-freedom chaotic vibrating screen sieves using ANSYS finite element analysis software to determine the resonant frequency region,to ensure that the vibrating screen in the work to avoid the resonance zone,effectively improve the equipment life and safety. |
