Matlab/Simulink models of a machine

I have a robot system modelling task that require a decent understanding of analyzing multi-machine systems. This needs to be done in Matlab and Simulink and also implement means to control certain input variables for optimisation within matlab. If you are familiar with simulation modelling and optimisation, this could be a good opportunity. Please include a summary/snapshop of a similar matlab work you did previously. I will send on a sample paper to the suitable freelancers to determine the timeline. Thanks.