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Robotic leg inverse dynamic modelling and design optimization in Simmechanics
Grepl, Robert ; Kratochvíl, Ctirad
This paper deals with the design of inverse dynamical model of pantographic robotic leg in Matlab - SimMechanics. This problem belongs to the class of dynamical inverse modelling, where the positions ofactuators and efector are defined in different coordinate systems. Therefore we also have to use inverse kinematicsmodel. This inverse dynamic model serves as the base of robotic leg design optimization. The definition of valuefunction is based on known properties of drives and variable parameters of the leg design. Optimization maximizesparameters of efector trajectory.
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SBRA method and the development of its application
Půstka, D. ; Marek, Pavel
Tento příspěvek obrací pozornost na potenci l metody SBRA, zvláště u ocelových konstrucí. Plně pravděpodobnostní řešení daného problému je tu ukázáno na dvou příkladech. Na ocelovém nosníku ovlivněném korozí a na akumulaci poškození únavou na ocelových podpěrách namáhaných větrem. 295 This paper turns attention to the potential of the simulation based reliability assessment method SBRA, considering especially the durability assessment of steel structures. A fully probabilistic approach is demonstrated using two examples. A steel component is exposed to time dependent effects of corrosion and assessment of the accumulation fatigue damage.
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