Computer program for the calculation of the performance parameters of electromobiles

2011 ◽  
Vol 2 (2) ◽  
pp. 123-128
Author(s):  
G. Á. Szíki
Keyword(s):  
Computer Program ◽  
Gear Ratio ◽  
Performance Parameters ◽  
Chain Drive ◽  
Technical Parameters ◽  
Optimal Values ◽  
Machine Parts

Abstract The presented computer program is capable of calculating the performance parameters of electromobiles from the technical parameters of their machine parts. Reached speed and covered distance within a given period of time and also the top speed of the vehicles can be calculated. Moreover, the optimal values of the technical parameters (such as the optimal gear ratio in the chain drive) can be determined indirectly. Thus the program is a useful help for designers of electromobiles and also a useful tool to predict the performance of a given model in the competition.

Computer Program in Visual Basic Language for Manufacture of Helical Cutting Tools

2012 ◽  
Vol 488-489 ◽  
pp. 813-818
Author(s):  
Ngoc Thiem Vu ◽  
Shinn Liang Chang ◽  
Jackson Hu ◽  
Tacker Wang
Keyword(s):  
Computer Program ◽  
Cutting Tool ◽  
Cutting Tools ◽  
Technical Parameters ◽  
Manufacture Process ◽  
Basic Language ◽  
Tool Profile ◽  
Relief Angle ◽  
Economical Consideration ◽  
Visual Basic Language

The helical cutting tools have complex geometries. A rack cutter is the most economical tool that has been used for manufacturing helical cutting tool. In this paper, the computer program has been designed to evaluate the manufacture abilities following design concept and analyze the technical parameters of helical cutting tool. The program can simulate the sections of helical cutting tool and the rack cutter, analyze the clearance angle, relief angle, and width top of the helical cutting tool, and modify the rack cutter profile to show the helical cutting tool profile suitably. This program can predict the differences during manufacture process and give the best solution for economical consideration.

GTPRO: A Flexible, Interactive Computer Program for the Design and Optimization of Gas Turbine Power Systems

1988 ◽  
Author(s):  
Maher A. Elmasri
Keyword(s):  
Power Systems ◽  
Computer Program ◽  
Gas Turbine ◽  
Gas Turbines ◽  
Combined Cycle ◽  
Process Flow ◽  
Technical Parameters ◽  
Design And Optimization ◽  
Trade Offs ◽  
Combined Cycles

A fast, interactive, flexible computer program has been developed to facilitate system selection and design for gas turbine based power and cogeneration plants. A data base containing ISO performance information on forty-two gas turbines is coupled to an off-design model to predict engine characteristics for different site and installation parameters. A heat recovery steam generator (HRSG) model allows boiler size and cost to be estimated as a function of the system’s technical parameters. The model can handle HRSG’s with up to two live steam pressures plus a third feedheating/deaerating drum. Five basic types of combined cycle are covered with up to four different process steam streams for cogeneration or gas turbine injection. Two additional feedheating steam bleeds are supported for condensing combined cycles. The program is intelligent with some internal decision making capabilities regarding process steam sourcing and flow directions and will automatically select the appropriate heat and mass balance procedures to cover a wide variety of process flow schematics. The program provides plotter outputs to show the cycle process flow schematic, T-s and h-s diagrams, and HRSG temperature profiles. An application of GTPRO in analyzing some technical and economic performance trade-offs for two-pressure combined cycles is presented.

scholarly journals Application of computer technologies for calculation of gears at studying of a course " Details of machines"

2021 ◽  
pp. 15-20
Author(s):  
Olena Nadtoka ◽  
Denis Nadtoka
Keyword(s):  
Computer Program ◽  
Object Oriented ◽  
Spur Gear ◽  
Helical Gear ◽  
Bevel Gear ◽  
Object Oriented Programming ◽  
Transmission Parameters ◽  
Separate File ◽  
Machine Parts ◽  
Oriented Programming Language

The computer program GearKURT has been created to calculate mechanical gears. The program allows you to calculate gears: - closed cylindrical spur gear - closed cylindrical helical gear - open cylindrical spur gear - Novikov's gear - closed bevel spur gear - closed bevel gear with indirect teeth - open bevel gear - worm-gear. The computer program has a dialog interface written in the object-oriented programming language Delphi and compiled into an exe-file. The program allows you to choose the necessary material and method of heat treatment for the manufacture of gears, to calculate the optimal geometric dimensions and transmission parameters, to determine the design of gears. The program provides all the necessary reference materials in the form of tables and graphs, which must be used to select the coefficients and other values necessary for calculations. The program provides access to the theoretical material of the course "Machine Parts" and the ability to save the results of calculations in a separate file. Recommendations for using this program are given.

scholarly journals МОДЕЛИРОВАНИЕ КИНЕМАТИКИ РАБОТЫ ШАРНИРНО-СТЕРЖНЕВОГО ГИДРОМАНИПУЛЯТОРА

2020 ◽  
Author(s):  
N.V. Babochenko ◽  
Papa, Antvi-Wilson
Keyword(s):  
Computer Program ◽  
Programming Language ◽  
Kinematic Parameters ◽  
Supporting Structure ◽  
Hydraulic Manipulators ◽  
C Programming Language ◽  
Kinematic Characteristics ◽  
C Programming ◽  
Optimal Values ◽  
Hydraulic Manipulator

В статье рассмотрена возможность определения кинематических параметров работы гидроманипуляторов, имеющих в качестве несущей конструкции шарнирно-стержневую стрелу. Конструкция шарнирно-стержневой стрелы имеет свои особенности, которые необходимо учитывать при проводимых расчетах. Особенно возникла сложность в определении параметров кинематики в работе гидроманипуляторов с такой конструкцией стрелы. Определение кинематических характеристик произведено разработанной на языке программирования С программой. Она создавалась для использования на практике с целью облегчения процесса вычисления и выявления оптимальных значений работы стреловых гидроманипуляторов. Оригинальность описанной в статье программы подтверждена свидетельством о государственной регистрации программы для ЭВМ. Использование программы позволяет осуществлять выбор оптимальных значений кинематических характеристик и по полученным данным строить необходимые графики, тем самым облегчив исследовательскую работу по определению оптимальных значений работы гидроманипулятора с шарнирно-стержневой стрелой. Расчеты, с использованием компьютерной программы на языке программирования С, произведены для конструкторской разработки, оригинальность которой подтверждена патентом на полезную модель. С использованием компьютерной программы определили оптимальные кинематические параметры работы шарнирно-стержневой стрелы гидроманипулятора. При заданных величинах длин стержней, составляющих шарнирно-стержневое соединение стрелы гидроманипулятора, согласно работе компьютерной программы определяются координаты и углы поворота несущей конструкции шарнирно-стрежневой стрелы гидроманипулятора, а также скорость и ускорение её перемещения. По полученным данным возможно построение графиков, таких как изменение положения шарниров в пространственной системе координат, составляющих шарнирно-стержневое соединение стрелы гидроманипулятора, углов поворота и скоростей и т.д. Установлено, что программа работает, как подтверждают полученные результаты, для определения кинематических характеристик конкретной конструкторской разработки, а, значит, возможно ее использование для расчетов параметров кинематики и других подобных конструкторских разработок, как, шарнирно-стержневой стрелой, так и стреловых гидроманипуляторов.The article considers the possibility of determining the kinematic parameters of hydraulic manipulators that have a hinged-rod boom as a supporting structure. The design of the hinged-rod boom has its own features that must be taken into account when performing calculations. Especially there was a difficulty in determining the kinematic parameters during the operation of hydraulic manipulators with such a boom design. The kinematic characteristics were determined by a program developed in the C programming language. It was created for practical use in order to simplify the calculation and identification of optimal values of the boom hydraulic manipulators operation. The originality of the program described in the article is confirmed by the certificate of state registration of the computer program. Using the program allows to select the optimal values of kinematic characteristics and build the necessary graphs based on the data obtained, thereby simplifying the research work of determining the optimal values of the hydraulic manipulator with a hinged-rod boom. Calculations, with the use of a computer program in the C programming language, were made for engineering development, the originality of which is confirmed by a patent for a utility model. Using a computer program, the optimal kinematic parameters of the hinge-rod boom of the hydraulic manipulator were determined. According to the computer program, with the given values of the lengths of the rods constituting a hinge-rod connecting arm of the crane, the coordinates and angles of rotation of the supporting structure of the hinged-rod boom of the crane and also its velocity and acceleration of movement are determined. Based on the obtained data, it is possible to plot graphs, such as changes in the position of the hinges in the spatial coordinate system that make up the hinge-rod connection of the hydraulic manipulator boom, angles rotation and velocity, etc. As the results confirm, the program works to determine the kinematic characteristics of a particular engineering development. It means that its use is possible for calculating the kinematic parameters of the other similar design developments, both the hinged-rod boom and boom hydraulic manipulators.

scholarly journals Mechanical oscillations in the technological processes of restoration of machine parts

2019 ◽  
pp. 62-67
Author(s):  
Anatoly Dudnikov ◽  
Igor Dudnikov ◽  
Vladimir Dudnik ◽  
Taras Lapenko
Keyword(s):  
Residual Strain ◽  
Residual Deformation ◽  
Outer Diameter ◽  
Technological Processes ◽  
Mechanical Oscillations ◽  
Working Surface ◽  
Inner Diameter ◽  
Optimal Values ◽  
Machine Parts

The paper addresses the issues of increasing the durability of piston pins of automotive and tractor engines through the use of vibration oscillations during their restoration. Experimentally found the optimal values of the angle of inclination of the machined tool – punch and its effect on the amount of metal sticking to the working surface of the punch, which reduces the quality of the processed surface of the piston pins and increases the non-uniformity of deformation in the radial direction and length. The change of the residual strain along the outer and inner diameter of the piston pin during vibratory deformation is shown. The obtained mathematical dependences of the change in residual strain on the outer diameter on the value of the allowance for processing. Experimentally found a relationship that associates residual deformation with the wear of piston pins. The results of the work will be used for the development of technological processes for the restoration of piston pins and bushings of the top heads of connecting rods of various autotractor engines by the method of vibration deformation.

scholarly journals Modeling of a Stress-Strain State of Detachable Connection in Details of Reinforced Composite Materials with Cea Method

2020 ◽  
Vol 70 (1) ◽  
pp. 17-28
Author(s):  
Dovhopolov Andrii ◽  
Nekrasov Sergiy ◽  
Zhyhylii Dmytro ◽  
Savchenko Yevheniy ◽  
Stupin Borys
Keyword(s):  
Composite Materials ◽  
Strain State ◽  
Performance Parameters ◽  
Stress Strain ◽  
Element Analysis ◽  
Threaded Joint ◽  
Stress Strain State ◽  
Reinforced Composite ◽  
Machine Parts ◽  
Main Thread

AbstractIn order to study the strength of the proposed rope threaded joint for machine parts made of reinforced composite materials, a modeling of a stress-strain state was conducted using the software of finite-element analysis LS-DYNA. Stress-strain state modeling was conducted for a rope threaded joint, affecting on the main performance parameters considered to be p – thread pitch (p = 4 mm), and t – thread depth (t = 1 mm). The main thread parameters taken for the model were up to the metric thread М6 (ISO 724:1993) parameters.

DISTRIBUTION OF CONTACT STRESSES AND INTER-TOOTH SLIP IN BILATERAL AND UNILATERAL ENGAGEMENT

Tribologia ◽  
2019 ◽  
Vol 286 (4) ◽  
pp. 121-131
Author(s):  
Jan ZWOLAK ◽  
Marek MARTYNA ◽  
Dominik KOZIK
Keyword(s):  
Computer Program ◽  
Gear Ratio ◽  
Contact Stresses ◽  
Gear Pair ◽  
Wheel Loader ◽  
Power Shift

The paper presents the issues concerning contact stresses and inter-tooth slip of a power shift gear used in the powertrain of a wheel loader. The kinematic diagrams on individual gear ratios of the transmission are presented. Using appropriate numerical values of contour shift coefficients (correction coefficients), normal bilateral gearing, pre-pitch unilateral gearing, and post-pitch unilateral gearing were considered. In each of the three types of gearing, contact stresses and inter-tooth slip were calculated for each gear pair and at each gear ratio level, using an author's computer program with multi-criteria optimization.

scholarly journals A Calculation of the Main Load Coefficient in Threaded Connections

2019 ◽  
pp. 10-17
Author(s):  
O.A. Ryahovskiy ◽  
V.S. Syromyatnikov
Keyword(s):  
Computer Program ◽  
External Load ◽  
The Other ◽  
Regression Dependence ◽  
Threaded Connections ◽  
Mathematical Expressions ◽  
Wide Range ◽  
Calculation Results ◽  
Machine Parts ◽  
Bolt Diameter

Threaded connections of machine parts are widely used in various technical devices. The needs of modern machines stimulate the development of accurate methods for calculating and assembling threaded connections. The problem of calculating the strength of the connection is associated with determining the coefficient of the main load that affects the distribution of the external load between the bolt and the machine parts. One part of the load falls on the bolt; the other part unloads the connection elements. Until recently, when calculating the coefficient of the main load, approximations or recommendations to take its value in the range of 0.2–0.3 have been used. This paper refines the calculations and presents specific mathematical expressions for a computer program developed for calculating the coefficient of the main load. The calculation results show that the value of coefficient of the main load varies over a wide range depending on the bolt diameter, thickness, material of the parts, etc. An analysis of the results of programming and the construction of the regression dependence of the coefficient of the main load on the thickness of the connection for a given series of standard bolts is carried out using the statistical package Statgraphic Plus. Regression simplifies the calculation of the coefficient of the main load for any thickness of parts with a slight decrease in accuracy.

scholarly journals Analysis on Condenser with Different Refrigerants

2021 ◽  
Vol 9 (VII) ◽  
pp. 2021-2027
Author(s):  
T. Anusha
Keyword(s):  
Ozone Layer ◽  
Metal Particles ◽  
Performance Parameters ◽  
Ansys Software ◽  
Main Drawback ◽  
Optimal Values ◽  
R 134A

: This research considered the analysis of condensers by using refrigerants R-134A, R-22 and R-744. The optimal values were obtained by varying different performance parameters. The simulation can be done by using CFD ANSYS Software. Experiments were conducted in order to justify the performance of refrigerants on the fins in condensers and compare the performance of refrigerants on the condenser and fins and find which one has the best Eco-friendly results. The simulated Ansys results showed that R-744 has better and more Eco-friendly results than R-134A and R-22. The main drawback for R22 deplets the ozone layer and is harmful to the environment and for R-134A has the metal particles of Al2O3 which heats the refrigerant immediately.

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