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Scotch Yoke Mechanism Project Report Pdf


Scotch Yoke Mechanism Project Report Pdf




A Scotch yoke mechanism is a type of a reciprocating motion mechanism, converting the linear motion of a slider into rotational motion of a crank or vice versa. This mechanism is used to drive the piston in various applications, such as control valve actuators, internal combustion engines, and pumping systems. In this article, we will present a project report on the design, analysis, and simulation of a Scotch yoke mechanism using different tools and methods.


Design of Scotch yoke mechanism




The design of a Scotch yoke mechanism involves determining the dimensions and parameters of the components, such as the crank, the slider, the connecting rod, and the yoke. The design criteria may include the desired stroke length, speed, torque, power, efficiency, and dynamic behavior of the mechanism. The design process may also involve selecting suitable materials and manufacturing methods for the components.




Scotch Yoke Mechanism Project Report Pdf


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One of the main challenges in designing a Scotch yoke mechanism is to balance the input torque, which is highly variable and can cause torsional vibration and wear in the gears and joints. One of the methods to solve this problem is to add linear springs to the output slider, which can cancel out the inertial effects and make the input torque constant. This method also facilitates the control of the mechanism and improves its driving dynamics. Another method is to use a cam-spring mechanism as an auxiliary linkage to balance the input torque. However, this method may introduce additional friction and contact stresses between the roller and the cam.


Analysis of Scotch yoke mechanism




The analysis of a Scotch yoke mechanism involves studying the kinematic and dynamic behavior of the mechanism under different operating conditions. The kinematic analysis deals with the position, velocity, acceleration, and jerk of the components as functions of time or crank angle. The dynamic analysis deals with the forces, torques, power, energy, and efficiency of the mechanism as functions of time or crank angle.


The analysis of a Scotch yoke mechanism can be done using analytical methods or numerical methods. Analytical methods involve deriving mathematical equations that describe the motion and forces of the components using geometry, trigonometry, calculus, and physics. Numerical methods involve solving these equations using computer software or hardware that can perform iterative calculations and generate approximate solutions.


Simulation of Scotch yoke mechanism




The simulation of a Scotch yoke mechanism involves creating a virtual model of the mechanism using computer software that can perform graphical visualization and animation of the motion and forces of the components. The simulation can also include testing and validation of the design and analysis results using experimental data or theoretical predictions.


The simulation of a Scotch yoke mechanism can be done using various software tools that can handle multi-body dynamics and kinematics problems. Some examples are ADAMS, MATLAB, SolidWorks, and ANSYS. These tools can help in designing, analyzing, optimizing, and verifying the performance and functionality of the mechanism.


Conclusion




A Scotch yoke mechanism is a useful device that can convert linear motion into rotational motion or vice versa. It has many applications in engineering fields that require reciprocating motion. In this article, we have presented a project report on how to design, analyze, and simulate a Scotch yoke mechanism using different tools and methods. We hope that this article can help students and engineers who are interested in learning more about this mechanism.


References





  • Vigen Arakelian et al., "Design of Scotch yoke mechanisms with improved driving dynamics", Proceedings of IMechE Part K: Journal of Multi-body Dynamics 2016; 230(4): 379386.



  • Scoth Yoke - Machines lab reports - EXPERIMENT # 04 TO INVESTIGATE THE KINEMATIC MOTION - Studocu



  • Project Motorized Scotch Yoke Mechanism PDF - SlideShare



  • MATLAB - MathWorks



  • SolidWorks - Dassault Systèmes



  • ANSYS - Engineering Simulation Software




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