Dimensional Synthesis And Optimization Of Self-adjustable Non-coaxial Typed Two-output Impulse Generator Based On Reducing The Impulse Value

The trend of development of the mechanical engineering technology can be simple summary for the green, smart, superior, integration and service, this is the developing direction of mechanical manufacturing industry in the future. Mechanisms as the basis of modern manufacturing industry, research on mechanisms is very important for to improve the ability of independent design, innovation and international competitiveness of mechanical products. The impulse stepless speed variator is a typical kind of six bar mechanism, research the dimensional synthesis, kinematics and dynamics characteristics of new type mechanism, that is important supplement and development of mechanisms. In this paper, in order to give the rein to the transmission advantages of impulse stepless speed variator, we need to develop new products has characteristics of high power, high velocity, stable operation and high efficiency, for this reason, non-coaxial style of two-output impulse mechanism have been proposed in the past. In this paper, we have in-depth research with this mechanism, in order to reduce the impulse value of output angler velocity of the non-coaxial style of two-output impulse mechanism, using software MATLAB, SIMULINK, ADAMS and ISIGHT for dimensional synthesis, modeling, simulation analysis and dimensional optimization, get a set of non-coaxial style of two-output impulse mechanism, which can achieve the performance requirements and the impulse value lower; at last, in order to reduce the increasing of mechanism cost that caused by the influence of over-constraint and improve the self-adaptability of mechanical system, completed the self-adjusting method design of the non-coaxial style of two-output impulse mechanism.In the process of research, the non-coaxial style of two-output impulse mechanism as the research object, analyses the characteristics of the mechanism, considering the kinematics condition of the mechanism proposed equivalent mechanism, and with reduce the pulsation of output angler velocity as the target, based on theoretical analysis and research of the basis performance parameters of the equivalent mechanism, summarizes the kinematics conditions of the equivalent mechanism which can achieve; through the analysis of the variable length AC, AD, we know the equivalent mechanism can be used as based four-bar mechanism to design, according to the analysis of the dimensional synthesis of based four-bar mechanism; on the basis of forefathers’ research, proposed a new method of determine the point B, concluded that the method of dimensional synthesis of the equivalent mechanism. Using software SIMULINK, ADAMS to build the mechanism model, through the comparison of simulation results to prove correctness of the simulation results; using simulation result and data analysis by MATLAB, obtains the variation law of double the output rod angular speed and acceleration, and the increase of institutional average, pulsation coefficient with the increase of crank length, and analyzed the impact of two-output motion with the length of the rod AB and BCD change. In this paper, we using optimization software ISIGHT integrated software ADAMS and MATLAB, through the orthogonal experiment design to analysis the influence of each factor for impulse value, thus determine the effective design space, and mechanism dimensional optimization by the ASA, effectively reduce the impulse value of the non-coaxial style of two-output impulse mechanism. Completed analysis of over-constraint and design of self-adjusting method by methods which have non over-constraint in the basic linkage group, the simulation analysis shows when input and output shaft have parallel error, we can ignore the influence of the output angular velocity, the self-adjusting structure achieve the desired effect.