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Тема выпускной квалификационной работы: «Мобильная автоматизированная транспортная тележка». Данная работа посвящена проектированию мобильной автоматизированной транспортной тележки, передвигающейся на Ð´Ð²ÑƒÑ Ð¿Ñ€Ð¸Ð²Ð¾Ð´Ð½Ñ‹Ñ Ð¸ опорном ÐºÐ¾Ð»ÐµÑÐ°Ñ Ð¸ компенсирующей массу груза при помощи воздушной подушки. Задачи, которые решались в Ñ Ð¾Ð´Ðµ исследования: 1. Изучение принципа работы мобильной автоматизированной транспортной тележки. 2. Разработка структурной и кинематической ÑÑ ÐµÐ¼ мобильной автоматизированной транспортной тележки. 3. Расчет и выбор Ð¾Ð¿Ñ‚Ð¸Ð¼Ð°Ð»ÑŒÐ½Ñ‹Ñ Ð¼Ð¾Ñ‚Ð¾Ñ€-редуктора и нагнетателя Ð²Ð¾Ð·Ð´ÑƒÑ Ð°. 4. Прочностной расчет рамы транспортной тележки и элементов приводного модуля. 5. Разработка 3Д-модели и сборочного чертежа транспортной тележки. Были произведены расчеты и подбор компонентов для проектирования автоматизированной тележки. Данные компоненты были включены в разработанную в программе SolidWorks 3Д-модель. В результате была спроектирована модель мобильной тележки, способной транспортировать заданную массу груза и перемещающейся по помещению автоматизировано. В качестве навигационной системы в разработанной тележке выступал лидар.Â, The subject of the graduate qualification work is “Mobile automated transport trolley”. This work is devoted to the design of a mobile automated transport trolley that moves on two drive and support wheels and compensates for the weight of the load using an airbag. Tasks that were solved during the study:1.   Study of the principle of operation of a mobile automated transport trolley. 2. Development of structural and kinematic schemes of a mobile automated transport trolley. 3. Calculation and selection of optimal gear motor and supercharger.4.Strength calculation of the frame of the transport trolley and the elements of the drive module. 5. Development of a 3D model and assembly drawing of the drive module. Calculations and selection of components for the design of an automated trolley were carried out. These components were included in the 3D model developed in the SolidWorks program. As a result, a model of a mobile trolley capable of transporting a given weight of load and moving around the room automatically was designed. Lidar acted as a navigation system in the developed trolley.

This article is devoted to the urgent, presently, problem that is to ensure the best level of the passive safety of car seats with active head restraints, as well as to assess the effectiveness of such constructional designs. This is an impact-related task, to be, as a consequence, essentially nonlinear with large deformations, strains and accelerations.To solve this problem finite element models of three types of seat designs with active head restraints have been developed. When creating the simulation FEM a number of CAD (Computer Aided Design)/CAE (Computer Aided Engineering) software was used.This work was performed within the framework of the developed technique, which allows an efficient creation of the car seat designs with passive and active head restraints that meet requirements of the passive safety.The results of calculations and experiments allowed us to find that the active head restraint significantly reduced a NIC (Neck Injury Criterion) value, namely up to 36.92 (4%) when using the active headrest with articulated tilting couch, 29.23 (per 24%) when using the active headrest with sliding pad, and 26.15 (31%) when using the active head restraint, which is provided with an airbag. We have also managed to achieve significantly reduced head acceleration under impact.It was found that FEM seats with active head restraint, which is provided with an airbag, are the most secure because of the least NIC value under the impact (26.15).Presented in the article materials are used in teaching students at the department “Wheeled vehicles” of scientific and educational complex "Special engineering" in BMSTU.