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Документ Formation of working surfaces and research of qualitative indicators of non-evolvent gears (review and prospects of development)(Baltija Publishing, Riga, Latvia, 2020) Gutsalenko, Yu. G.; Tretyak, T. E.From the standpoint of the development of possibilities of application in theory and practice, the works of Prof. B. A. Perepelitsa from Kharkov Polytechnic Institute and his disciples to develop an applied methodology of multiparameter mappings in relation to the profiling and functioning of complex curvilinear objects and transmission mechanisms in mechanical engineering, mainly with examples of gears, are presented. The work substantiates the relevance of the study of gears with a complex noninvolute profile of the side surfaces of the teeth, which in some applications have advantages over involute gears and are devoid of some of their drawbacks associated with quality indicators. A technique for obtaining mating surfaces of the teeth of non-invasive gears as envelopes of the specified surfaces of the teeth of tools is described. A scheme for forming pairs of non-involute gears, from which a gearing can be composed, is proposed. At the same time, diamond-abrasive tools are considered as shaping the working gear profile in its cutting according to the copying scheme and finishing according to the rolling honing scheme. In the first case, the profile of a special shaped tool on a high-strength metal bond is supported by a master electrode according to the scheme of the anodic connection of the tool into the electric circuit of dressing, similar to diamond spark grinding. In the second case, the use of gear wheels-hones on elastic ligaments is shown. It is shown that to obtain the mating surfaces of the teeth of two non-involute gears, two tool rails can be used with the profiles of the side surfaces of the teeth opposite to each other. As a nonlinear profile of the tooth lateral surface of the tool rail, some part of one of the simulated flat kinematic curves is considered. A description of the program developed in accordance with the described method is given, which allows you to calculate the geometric characteristics of the shaped profiles of the gear pair wheels, visualize the shaping process, and also determine the quality indicators of the gearing. Thus, the prerequisites were created for choosing from the resulting geometric modeling of the curve field of such tooth profiles of the tools, which would provide the most rational combination of the tooth profiles of the gears processed by them and the required quality parameters of the gear teeth. The results of the study of the pressure ratio between the teeth of a gear and the overlap ratio of gears when choosing the shape of the tooth profiles are presented. A series of numerical experiments for gearing, formed by pairs of tool rails with different profiles of the side surfaces of the teeth straight, convex and concave, as well as convexconcave were performed. It is shown that non-involute gearing can have large reduced radii of curvature (and consequently smaller pressure coefficients) at the points of tangency of the profiles compared to involute gearing with a slight increase or decrease in the gearing overlap ratio. The most preferable is the variant of the rails with convex and concave tooth profiles, which provides the best values of both quality indicators of the engagement.Документ Design and numerical simulation of the new design of the gripper for manipulating of the rotational parts(Polish Society of Technical Diagnostics, 2018) Basova, Ye. V.; Nutsubidze, K.; Ivanova, M. S.; Slipchenko, S.; Kotliar, A. V.The analysis of the field of application of gripper is carried out. Are allocated perspective areas of development of a robotics. The main difficulties in the application of kinematic schemes for gripping devices with rotary finger movement are described. The prospective application of the kinematic scheme of the gripper with a straight-parallel plane-parallel motion of the fingers is proved when manipulating an object of the "shaft" type. A new scheme of a gripper with a rectilinear plane-parallel finger movement is presented. Its design is simpler and cheaper than known devices of this type. The capability of the gripper design in the engineering analysis environment has been fulfilled. Numerous computer studies of both individual design elements and pairs of objects that are in interaction have confirmed the operability of the developed design. It is established that the frictional force in the mobile components of the gripper design is insignificant, which will not create the prerequisites for a significant increase in size.Документ Mechanics(NTU "KhPI", 2016) Lyubchenko, O. A.The study guide on "General Physics" contains the theoretical material, solutions manual with examples of solved problems, and set of control questions with answers on "Mechanics" (chapters "Kinematics", "Dynamics" and "Oscillations and Waves"). This study guide is intended for students of all specialties of all modes of study.Документ Олег Костянтинович Морачковський – видатний вчений-механік (до 70-річчя з дня народження)(НТУ "ХПІ", 2015) Бреславський, Дмитро ВасильовичУ статті міститься нарис про видатного вченого-механіка, доктора технічних наук, професора Олега Костянтиновича Морачковського. Наведено коротку біографію вченого, описано основні навчальні курси, розроблені ним для студентів на кафедрах динаміки та міцності машин й теоретичної механіки. Надано коротке викладення основних наукових результатів, що їх отримано О. К. Морачковським у різних розділах механіки: теорії повзучості, континуальній механіці пошкоджуваності, теорії пластин та оболонок. Наведено приклади виконаних прикладних досліджень динаміки та міцності машин і конструкцій.Документ Анализ технологического режима работы бесступенчатой гидрообъемно-механической трансмиссии с использованием отечественных гидроагрегатов автомобиля для ремонта нефтегазовых скважин(НТУ "ХПИ", 2013) Самородов, Вадим Борисович; Островерх, Александр Олегович; Кожушко, Андрей ПавловичПредложена структурная, кинематическая схема и математическая модель бесступенчатой двухпоточной гидрообъемно-механической трансмиссии с использованием отечественных гидроагрегатов автомобиля на базе шасси КрАЗ-63221-02, при выполнении технологического режима работы подъема и опускания колонны труб.