Finding the Equation System of a Complex Mechanism: Using Lagrange Formalism

AI Thread Summary
The discussion focuses on finding the equation system for a complex mechanism with four degrees of freedom (DoF) using Lagrange Formalism. A participant expresses uncertainty about potential mistakes in their calculations and seeks verification of their results. Another contributor emphasizes the importance of including kinetic energy (T) and potential energy (V) in the analysis, noting their absence in the original work. The conversation highlights the critical nature of accuracy in applying Lagrange Formalism, as small errors can significantly impact the outcome. Overall, the thread underscores the need for thorough verification when dealing with complex mechanical systems.
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Summary:: equation system of complex mechanism need to be done. Lagrange Formalism could be helpfull to do it but small errors could all destroy ..

Hi everyone,
I tried to find the equation system of the joined Mechanism (4 DoF). I think there is a mistake but I am not sure where is it . I have used the Lagrange Formalism to determine the equations. Can anybody please help me with the verification, if it is correct . Thank you very much for your help :)
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If you intent to use Lagrange, you should begin by writing kinetic energy T and potential energy V. I don't see those in your work.
 

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