Shumilov H. Tower cranes lifting and moving trolley regimes optimization

The thesis presents the research with the purpose of increasing the effectiveness of the mechanisms of changing speed and load lifting by optimizing transient motion mechanisms for eliminating fluctuations in their elements. A dynamic analysis of transient motion mechanisms changing speed and load lifting and the reasons that affect the appearance and character of vibrational processes in these mechanisms. Optimization problems are solved by various criteria (integral functionals), which reflect undesirable characteristics of mechanisms. Optimum laws of motion characterized by smooth movement mechanisms and eliminate fluctuations in the past. Experimental studies using model systems jib tower crane and the reasons of the deviation of the experimental and theoretical data. A software and hardware implementation of control mechanisms for changing speed and load lifting tower crane. Structural improvements in these four mechanisms are protected by patents of Ukraine for useful model.