International Scientific Journals
of Scientific Technical Union of Mechanical Engineering "Industry 4.0"

The introduction of a testing system for agricultural machinery and implements, from the very beginning of the emergence of this research and production industry, is possible only with the establishment of a machine testing station, which reproduces the full cycle of crop cultivation. To do this, it is necessary to have appropriate land plots where crops are grown and subsequently tested, appropriate management personnel (agronomist and ordinary workers) and traction vehicles, i.e. horses. It is mandatory to have measuring instruments and various measuring equipment that can be used by scientists, testers and engineers during the tests. They should carry out preparatory work on the adaptation, adjustment, calibration and use of these devices. The next necessary condition is also the methodology for conducting the tests and processing the results of these measurements. The first testing station for agricultural machinery and implements in Ukraine that met these requirements was founded, established and began to operate successfully in Kharkiv, namely at the Kharkiv Practical Technological Institute in 1889.

The paper presents the results of an investigation aimed at analysing the current state of the art in the construction of hot water piping systems. Weld joint analysis and evaluation is an essential part of the inspection of hot water pipelines to ensure their safe operation. The practical part of this work is focused on the analysis and evaluation of the weld joint of original and new hot water piping. Destructive and non-destructive weld joint testing methods were applied to carry out the evaluation and analysis, the results of which were used to compare the welded joints on the hot water pipeline

The automotive industry is facing new challenges in the electric vehicle segment. It is relevant to conduct joint research of various vehicle systems in a common virtual physical environment, which will allow combining a large number of test rigs located in different parts of the world. A common virtual physical environment, called X-in-the-loop, was developed, as a part of these studies. The work involves the joint connection and use of test rig for various purposes, software simulators, driving simulators, etc., to conduct a comprehensive study of the components and systems of electric vehicles in real time. The development of the thermostating system for highvoltage components is an urgent and important task when creating modern electric vehicles. A test rig was created at FSUE NAMI to study the operation of the thermostating system for high-voltage components of an electric vehicle’s traction drive. The test rig includes a physical simulation of high-voltage components of the traction drive of an electric vehicle from the point of view of temperature and hydraulic conditions of the components studied at other test rigs included in the XIL experiments. The scientific article presents the concept of a developed test rig. The article also describes the test modes that were necessary to conduct research on various components and systems of electric vehicles in various conditions. The article describes a method for controlling the actuators of the thermostating system and devices designed to reproduce the thermal and hydraulic characteristics of cooled objects (motor-wheels and inverters) in real time. A test rig for the study of the thermostating system of high-voltage components, modelling, prototyping and testing were carried out in the process of developing.

Nowadays ensuring high-quality software product requires a lot of testing efforts. Automated tests in the 21st century are a must. Whether it’s code peer-review, unit, integration, system or exploratory user testing – it all has to be done with given insurance and expertise! Therefore, we look to automate our testing where is conceivable. Most applications today have the equivalent of Web and Mobile versions for the same functionality, but different platforms of action in order to facilitate the users. Therefore, parallel testing of both subtypes is required to provide smooth maintenance and rapidity. Running as many builds as possible, including tests to ensure quality is essential when comes up to reliable software product and agile development. With the implementation of Continuous Integration and Continuous Delivery tools, we guarantee a better way to deploy automated tests across multiple instances and execute them against those environments. BrowserStack is one common cloud solution to these requirements. It is a very powerful tool, which can be attached to our development process. This article explores detailed approach on the automation of cross-browser, device and compatibility testing in BrowserStack platform, using a custom extended automation framework to provide direct configuration output to this environment and give ease in the future Web and Mobile development.

Over the last two decades, software testing has expanded in terms of both the tools used to perform different types of activities and mind-set of the people using those tools. Automated testing involves use of strategies and instruments that perform testing activities of a software product and where the interference of a person is mainly related to the research of the results of these activities. Automated testing processes are popular because of the benefits that make them an indispensable tool in everyday work for testing activities. The main advantage of automation is the abstraction of rehearsal processes within the tested system. In this way, a complete separation of the human operations from the system is achieved, as only the functionality that needs to be programmed. This article presents the development of an automation-based testing framework “Stassy” – System Stable Testing, which supports and helps to implement easily new tests related to Web platforms. The implementation includes the following structure: Object repository, Functional libraries, Global variables and Constants, Data Provider, Test scripts, Configuration files, Recovery scenarios, Loggers, Clean-up scripts and Reporting mechanism. With the advantages of Page Object Pattern and using of the following technologies: Java programming language, JUnit and TestNG extended libraries. The created scripts represent automated acceptance, functional and non-functional tests in which Page Object is used to separate those tests into individual fragments and subsequently call them in a different order according to the automation requirements and business logic. We will track the overall preparation and creation of “Stassy” automated framework and explain the benefits of such approach.

This paper presents the development of a tribosystem, that corresponds to the maintenance or much more service time of agricultural machinery for testing new materials.