The design of a hydraulic crane

The theorical values of boom sections were calculated with the help of formula that was founded at the thesis. Then the theorical values of maximum weight were compared with the values that were used in the industry. However, to make the design working in safe, the maximum forces that can be carried by the boom sections, were calculated again with the constant working pressure. The solutions were suggested to make the design saftier for carrying the maximum weight.Cylinders? pressure and diameter were calculated and the hydraulic circuit of the crane was designed. ?Forward-move velocity? and ?Back-move velocity? were calculated according to time of opening/closing. The reaction forces were found and the strenght anlysis were made for the connection elements of the crane.Finally not to overturn the truck according to the maximum forces in some critical positions, the moments of balance were calculated. After finding the balance, the force that needed to be carried by the support cylinders were calculated and the diameters of the cylinders were found.