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Монография посвящена исследованию и разработке многошестеренного насоса, предназначенного для перекачивания жидкостей различной вязкости. В работе подробно рассмотрены существующие проблемы, связанные с эксплуатацией традиционных шестеренных насосов, и предложен новый подход к конструированию насосов данного типа. Монография подготовлена в рамках реализации проекта грантового финансирования проектов Комитета по науке Министерства науки и высшего образования Республики Казахстан (грант молодых ученых ИРН № AP19579208 «Создание универсального прототипа шестеренчатого насоса для гидравлических систем, способного к перекачке вязких жидкостей различной природы»). Монография предназначена для специалистов, сотрудников научных организаций, магистрантов, докторантов, конструкторов и всех интересующихся проблемами проектирования гидравлических машин.

The monograph is devoted to the research and development of a multi-pinion pump designed for pumping liquids with different viscosity. The monorgaph considers in detail the existing problems associated with the operation of traditional gear pumps and proposes a new approach to the design of pumps of this type. The monograph is prepared within the framework of realization of the project of grant financing of projects of the Committee on Science of the Ministry of Science and Higher Education of the Republic of Kazakhstan (Grant of young scientists of IRN № AP19579208 “Creation of a universal prototype of a gear pump for hydraulic systems capable of pumping viscous liquids of various nature”). The monograph is intended for specialists, employees of scientific organizations, graduate students, doctoral students, designers and all those interested in the problems of designing hydraulic machines.

• CONTENT
• INTRODUCTION
• 1 STATE OF THE RESEARCH PROBLEM
• 2 DESIGN FEATURES OF GEAR PUMPS
• 2.1 Principle of operation and design features of hexagonal pumps
• 2.2 Features, classification, advantages and disadvantages of gear pump designs
• 2.3 Tribological properties of gear pumps
• 2.4 Fluid flow pulsations in a gear pump
• 3 DESIGN OF A MULTI-GEAR PUMP
• 3.1 Description of the proposed design of a multi-gear pump
• 3.2 Calculation of design parameters of gear engagement
• 3.3 Development of a 3D model of a multiple gear pump
• 3.4 Assembling a 3D model of a multi-gear pump
• 3.5 Research of hydraulic parameters of gear pump
• 4 PARAMETRIC OPTIMIZATION OF A GEAR NEW PUMP CASING BASED ON WEIGHT USING A FINITE ELEMENT METHOD
• 4.1 Parametric optimization methods
• 4.2 Creating a model of the research object
• 4.3 Applying loads and setting boundary conditions
• 4.4 Determination of the safety factor and fatigue strength of the construction
• 4.5 Determination of the stress-strain state of the elements of a multigear pump
• 4.6 Improving the shape and dimensions of the multi-gear pump design
• 4.7 Determination of the dependence of stresses on the geometric parameters of the structure
• 4.8 Optimization of the front cover of the gear pump
• 4.9 Optimization of the gear pump casing
• 5 IMPROVING THE DESIGN OF A MULTI-GEAR PUMP SWITCHGEAR USING CFD ANALYSIS
• 5.1 Background of the study of gear pump using CFD Analysis
• 5.2 The design feature of the multi-gear pump is the suction and displacement system
• 5.3 Grid construction and setting of boundary conditions in the distribution system
• 5.4 Input data to estimate hydraulic parameters in the suction and pressure lines of the distribution system
• 5.5 Investigation of changes in the main hydraulic parameters of a multi-gear pump in suction and pressure lines
• 5.6 Investigation of manifold geometry variation on fluid velocity and pressure drop
• 6 СFD-FEM ANALYSIS FOR FUNCTIONALITY PREDICTION OF MULTI-GEAR PUMPS
• 6.1 Experience of СFD and FEM modeling of gear pumps
• 6.2 Simulation model for CFD analysis
• 6.3 Stages of FEM analysis
• 6.3.1 Creation of a simulation model
• 6.3.2 Establishing contact in a gear mesh
• 6.3.3 Selecting the type of attachment
• 6.3.4 Torque setting
• 6.3.5 Grid creation
• 6.3.6 Input data for strength calculation
• 6.4 Results of CFD and FEM analysis for multi-gear pumps
• 6.4.1 CFD analysis
• 6.4.2 FEM analysis
• 6.5 Determining the dependence of equivalent stresses on pressure in a gear connection
• 7 EXPERIMENTAL INVESTIGATIONS OF A NEW DESIGN OF A MULTI-GEAR PUMP
• 7.1 Experimental stand
• 7.2 Results of the performance test of the multi-gear pump
• REFERENCES