Dynamic strength and stiffness assessment of circuit cards with respect to their geometric parameters
The present study is a mathematical modeling aimed at the dynamic force analysis of printed circuit boards in order to eliminate dynamic stresses to an acceptable level and ensure the strength and reliability of the printed circuit board design.
Подобные документы
Determination the rigidity of constructive elements involved into the rated diagram of electromechanical system of the drive of spherical mill. Defining the rigidity of the elements entering a kinematic circuit of any electromechanical systems of drives.
статья, добавлен 28.11.2016Determination of the design principles of shaping in the design of fur garments that provide innovative character of the design activities and high level of artistic and stylistic properties of the projected objects. Principles of composition for design.
статья, добавлен 31.05.2022Analysis of design features and parameters of automobile and aircraft engines is carried out. It is shown that car engines, despite the high technical level achieved at the beginning of the 21st century, do not technically meet aviation requirements.
статья, добавлен 19.06.2022- 29. The influence mechanism of ferrite grain size on strength stress at the fatigue of low-carbon steel
The study of the properties of low carbon steel. Methods of cold plastic deformation. The rationale for the recommended annealing temperature. Is the microstructure of low-carbon metal. The study of the conditions of plastic deformation of ferrite.
статья, добавлен 29.01.2016 Analysis and comparison of the different rotor type permanent magnet machines. The presented machines are designed as having same geometrical dimensions and same materials for comparison. Permanent magnet machines, mathematical modeling, motor geometry.
реферат, добавлен 25.03.2011Description and analysis of the characteristics of main problems to be solved in design of fixture. Examination and description of the main principles of work with the developed software to automate the modeling process and the design of the led lamp.
статья, добавлен 26.06.2016The statement of basic materials. Engineering design has merit in continuous improvement of the basic parameters of the robot by applying newest outcomes of technology areas of mechanics, metallurgy, cybernetics to robot construction and control.
статья, добавлен 26.08.2020Features of defining the basic principles of the formation of the "unisex" style direction as a design practice in clothing design. Analysis of ways to identify the design and artistic compositional properties of the development of a costume collection.
статья, добавлен 25.04.2022Features the design of tooling for casting under pressure of zinc alloys. The problem that arise when designing a press-forms of analysis. Experiments to study thermal stability of materials, parts, equipment subject to cyclic thermo-mechanical treatment.
статья, добавлен 17.12.2016Nonaxisymmetric boundary value problem of elasticity theory for multiconnected body with cylindrical boundaries. Boundary conditions by the generalized Fourier method. The numerical analysis of stresses in the areas of their greatest concentration.
статья, добавлен 30.10.2016Analysis of finite element methods, numerical methods for solving engineering and mathematical physics. Obtaining analytical solutions for problems of complex geometry, loads and material properties. Tension rods, beams and other simple structures.
презентация, добавлен 20.10.2014The need to design new drilling equipment. The analyzed existing options for solving the problem solve it to some extent. To eliminate them, it is proposed to use elastic elements (ring springs) in the construction of double-shoulder tool joints.
статья, добавлен 02.03.2021Impact indicators coal shiites in the properties of the resulting coke. Coking process with the help of passive experiment. Effect of changes in the number of components of the coal charge on the quality of the coke at various technologies of sintering.
статья, добавлен 29.07.2016Model for calculation of nominal stresses in characteristic points of the surface fatigue crack to the tubular shaft in bending with rotation. Reasons for the decrease of the propagation velocity of cracks in the center and changing the geometry.
статья, добавлен 28.09.2016Determination of torque on the shaft of auger intensifier, power consumption, energy intensity and productivity of the backfilling workflow. Evaluation of soil properties, geometric parameters of the screw intensifier and speed of the bulldozer.
статья, добавлен 01.12.2017Analyzed the impact of long-term operation of gas pipelines, as well as natural stress concentrators on the physico-mechanical properties of welded joints of steel 17G1S. Regularities of the destruction of the material of welded joints of gas pipelines.
статья, добавлен 30.01.2016Test the tribological properties of lubricants as the main stage of assessing their suitability for use in friction. The scheme of the "cone - three ball" with the use of objects of simple geometric shapes to test different construction materials.
статья, добавлен 29.01.2016Development and active application of automation methods and tools that ensure the creation of Zois with specified high quality indicators with real restrictions on the use of development resources. Diagram of the "Get Function Listing" use case.
статья, добавлен 17.03.2022The study of methods of improving mechanical properties of coatings of implants by reducing the value of young's modulus and coefficient of friction in the fluids of the body to improve the tribological parameters of the implants with ceramic coatings.
статья, добавлен 29.01.2016A study of the collections of young Moldovan designers, graduates of the KSPU. I. Kryanga. Conceptual trends in the contemporary art of design and fashion in the country, based on the creative interpretation of artistic images by young designers.
статья, добавлен 22.05.2022- 46. Finding the conditions of hydrocarbons safe storing and transportation in tanks of different shapes
Application of the software package ConvEx in the design of storage tanks for petroleum products prone to self-degradation. Investigation of the influence of the geometric shape of the vessel on the critical temperature of storage of petroleum products.
статья, добавлен 10.05.2018 Investigation of physical and mechanical properties of the cement using of barium-containing clinker and gypsum stone. Effect of additives of barium-containing sulfateferrite clinker gypsum stone. Longer hardening and limits and compressive strength.
статья, добавлен 23.02.2016Analysis of the effect of deposition parameters on the crystal structure, surface morphology and compositional properties of an indium sulfide films. The use of electron microscopy to study the orientation of grains. Investigation of optical absorption.
статья, добавлен 21.12.2016Іn this paper we present the microcontroller system for the diagnostics and evaluation of the Stirling engine performance. For this purpose the analysis model for the prototype engine has been developed to present the engine’s improved benchmarking result
статья, добавлен 29.07.2016Increase in the use of hard, high strength and temperature resistant materials in engineering necessitated the development of machining techniques. Abrasive flow machining as process non-conventional machining processes. Magneto abrasive flow machining.
статья, добавлен 02.06.2014