With The Backlash Dynamic Simulation Of Crank Mechanism In The Internal Combustion Engine

Contact and impact between the organization’s deputy campaign element is a morecommon phenomenon in mechanical systems As the contact force between the contactand impact of the presence of deputy campaign elements is usually several times oreven several times, accelerate the loss of institutional components, affecting the life ofthe institution, design and research institutions have had a great impact. Along with thedevelopment of science and technology, the development of the institutional componentto the miniaturization and high-speed, becoming more demanding, including thekinetics of clearance joints, has become one of the main direction of the kinetics of theperformance of mechanical systems.This paper first introduces the current domestic and international clearance jointresearch and development. Equivalent spring-damper model, the establishment ofcontact and impact of the flexible multibody system dynamics model, and flexible bodycollision contact conditions, the establishment of two-body collision to the collisioncontact model and cut exposure to the collision model. On this basis, the use ofequivalent spring-damper model of the kinetic equation with gap combustion engineslider-crank mechanism.A brief introduction followed by internal combustion engines and internalcombustion engine slider-crank mechanism, and three-dimensional modeling of theinternal combustion engine slider-crank mechanism with UG software, modeling afterthe completion of multi-body dynamics analysis software ADAMS software interfaceimported into the software, slider-crank mechanism in ADAMS software to add theconstraints and drivers, mainly described in detail with clearances between the crankand connecting rod in ADAMS, deputy campaign steps.The end of the article describes the dynamics software ADAMS and the softwareprocessing of the clearance collision, mainly imported into a software engine slider-crank mechanism in the dynamic simulation of several different parameters: institutionsincluding clearance with and without gap, the gap radius of different sizes, the size ofthe sleeve stiffness and damping coefficients of different sizes, the connecting rod wererigid and flexible. Through the influence of different parameters of the simulationcompared to the institution of the connecting rod and slider displacement, velocity, acceleration and gap movement, vice elements of the contact force between theoptimization of slider-crank mechanism of an internal combustion engine provides atheoretical basis.