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

The main objective of the paper is to design a structure for the interior of the Hyundai ix20 passenger car, which is used by recreational fishing enthusiasts. The authors set out to use the luggage compartment (boot) of the vehicle appropriately for the placement of the multifunctional folding structure. The structure is designed to allow the most effective utilization of each of its components. The individual parts of the structure can, for example, be employed to assemble a table. Moreover, it is suitable for storing things needed for fishing, camping, and travelling. An integral part of the arrangement is a folding bed for two people. One of the design purposes was the comfort and uncomplicated operation of the entire structure by the user. The authors attended to carry out the modification without any interference into the interior or exterior of the vehicle. In addition, one of the conditions was to ensure free access to the components of the mandatory equipment of the car. The authors designed the structure in order to ensure the simple handling of its individual parts along with its simple installation in and removal from the vehicle. From the point of view of safety, a calculation of the stressed parts of the bed structure was performed. Thus, the structure was designed and constructed with regard to minimising the reduction of the original vehicle luggage compartment. In addition, the condition of no interference into the interior or exterior of the vehicle was met.

This report presents the different types of explosives. It presents a classification of explosives according to their sensitivity to external influences, as well as a classification of the permissible quantities of explosives, ammunition and pyrotechnic articles that can be safely stored in one room. An analysis was performed and the possibility of safely combined storage of explosives and ammunition was considered. The need of applying specific requirements for the design and exploitation of sites for the production, storage and trade of explosives, ammunition and pyrotechnic articles is described.

The state of collection, storage and processing of some main waste in Bulgaria is under consideration. In accordance with the legislation in force in Bulgaria and the EU, separate collection of waste is increasingly necessary. Some examples of different types of waste show what the actual condition is and show good examples of work in this area.

Analysing of material flows within the boundaries of the production system it is possible to conclude that the sources and sinks of those material flows are storages. In those storages in the function of the kind and the type numerous processes are implemented. These storage processes along with the material handling processes are responsible for quantitative and dynamic balancing of material flows and as such have a significant impact on the total cost and productivity of the production system. Due to the above reasons, the design of storage is an important task which needs to be adequately accessed. Regardless of the kind and the type and the associated processes within storage one of the main activities in the design phase of storage is to define its location, with special emphasis on interaction with other elements of the production system (production and processing equipment, material handling equipment and devices, etc.). Namely, selection of the right location, among other things ensuring the necessary conditions which will make the process of storage to meet the technical and technological, economic, organizational, IT and other requirements upon it.

The works on creation of technique of calculation of the electric corona ionization for storage of products with juicy plant products are summarized. The necessity to determine the effect of recombination of ions on the performance of these devices is proved. The dependence of the concentration of ions from the ionizer uptime, productivity and the recombination coefficient was obtained. It was determined that when calculating performance electric corona ionization for processing of plant products with succulent tissues outside the corona ions recombination can be ignored. Elucidation of the role of recombination in the processing of such products in the inter electrode space further research.

the analysis of technological operations of preparation is considered to storage of WEIMA 900M. Improved technological process of preparation to protracted storage of motocultivator, due to development of recommendations necessary to implementation. Control the system storage of facilities of small mechanization, which is based on collection and use of database about damages that breakages which arise up in the period of storage of technique, is offered. Due to the developed system, possibility to control the technical state during the period of exploitation appeared.

The cultivation of short rotation coppice (SRC) such as poplar and willow on agricultural land is of increasing interest for farmers. But high investment costs, high processing costs, low flexibility of the machines as well as high machine weights are problems, which hinder an extensive implementation. Therefore, the development of a simple and low weight mower-chipper was started. The chipper was designed for mounting in front of medium sized standard tractors. The new developed machine has been tested in three harvest periods.

Because of the very promising test results an industrial production is in preparation. To analyse the storage behaviour of wood chips different outdoor storage experiments were carried out at practice scale. Storage of coarse wood chips from the mower-chipper was compared with storage of fine chips produced by a forage harvester. Only small differences were found between both chip sizes.

The suggested technology for haylage preparation/storage in round bales wrapped in polymeric film is used in the world practice. The described experience for haylage preparation and feeding animals with it allows obtaining entirely balanced forage and increase of the animals’ productivity. Complex of machines used for haylage preparation abroad is presented. Developed in Kazakhstan machines are considered and the possibility of improving bale wrapper effectiveness analyzed.