scholarly journals Development and Application of Advanced Technological Solutions within Construction of Experimental Vehicle

2020 ◽  
Vol 10 (15) ◽  
pp. 5348
Author(s):  
Jozef Živčák ◽  
Michal Puškár ◽  
Tomáš Brestovič ◽  
Anna Nagyová ◽  
Miroslav Palko ◽  
...  

Changing market requirements, pressure to minimize production costs, competition, but also legislative restrictions have an impact on a number of areas, not excluding the automotive industry. Currently, development trends are moving towards the application of advanced technological solutions and materials, with the aim to reduce vehicle‘s weight, increase their strength and safety, and at the same time reduce the emission of vehicles. The Shell Eco Marathon competition is an excellent platform for the implementation of these activities. The main goal of the competition is to support the creative invention of research teams and bring innovative ideas and technical solutions. The scientific article focuses on a detailed analysis of development steps in the construction of experimental vehicles. The results of the research were presented at a competition in London 2019 with successful achievement. This work is a contribution to the design and aerodynamic optimization of the body and at the same time brings new ideas and structural elements to improve the production power unit.

2019 ◽  
Vol 290 ◽  
pp. 02007
Author(s):  
Radu Dan Paltan ◽  
Cristina Biriş ◽  
Loredana Anne-Marie Rădulescu

Of many techniques that are used to optimize production and costs, the studies conducted within a profile company lead to our choice for testing the 6Sigma method (the most used method in the automotive industry) in view of the economic efficiency applied in the wood Industry company. This method measures how many flaws exist in a process and determines in a systematic way how to improve it by technical overhauling and eliminating or minimizing the process for efficiency. This research article aims to study the state of research on the optimization of the production process through technical overhauling for panels reconstituted from solid wood and ways to make production more efficient by cutting costs through technical overhauling. From preliminary research, we estimate that all the items founded and others that will result from further research will result in a significant decrease in production costs that are reflected in the cost of the finished product and consequently in increasing the yield of the company by maximizing its profit. At the same time it may be the basis of future research studies in the field. The easier it is to maximize profits, the lower the operating costs are and the higher recovery rate of investments are, that will result a change in the operating mode: “working smarter not harder”.


Biosemiotics ◽  
2021 ◽  
Author(s):  
Amelia Lewis

AbstractIn this paper, I present an argument that quantitative behavioural analysis can be used in zoosemiotic studies to advance the field of biosemiotics. The premise is that signs and signals form patterns in space and time, which can be measured and analysed mathematically. Whole organism sign processing is an important component of the semiosphere, with individual organisms in their Umwelten deriving signs from, and contributing to, the semiosphere, and vice versa. Moreover, there is a wealth of data available in the traditional ethology literature which can be reinterpreted semiotically and drawn together to make a cohesive biosemiotic whole. For example, isolated signals, such as structural elements of birdsong, are attributed meaning by an interpreter, thus generating new ideas and hypotheses in both biology and semiotics. Furthermore, animal behaviour science has developed numerous test paradigms that with careful adaptation, could be suitable for use within a Peircean tripartite model, and thus give valuable insights into Umwelten of other species. In my conclusion, I suggest that by bringing together traditional ethology and biosemiotics, it is possible to use the Modern Synthesis to provide context to biosemiosis, thus pragmatic meaning to animal signals. On this basis, I propose updating the Modern Synthesis to a Semiotic Modern Synthesis, which focuses on whole-organism signals and their contexts, the latter being derived from neo-Darwinian theory and the ‘Umwelt’. Thus, there need be no dichotomy; the Modern Synthesis can successfully be integrated with biosemiotics.


2021 ◽  
Vol 18 (1) ◽  
pp. 62-71
Author(s):  
O. I. Zaynitdinov ◽  

Objective: Selection of technical solutions for designing a covered detachable body fence with sliding side walls and a roof. Methods: A detachable body with sliding side walls and a roof was designed in accordance with several technical and regulatory documents using the KOMPAS-3D design software. Results: The covered detachable body with sliding side walls and a roof designed for the carriage of goods that require protection from atmospheric precipitation has been proposed. A scheme of a lock for side sliding doors and a linkage scheme of the doors’ middle part have been developed. Drawings of the main load-bearing elements of the car body are presented, including the underframe with three longitudinal and several transverse and auxiliary beams. The diagram of fastening the sliding door roller assemblies on the car body to the lower longitudinal beams and to the upper beam is given. Practical importance: The covered detachable body with sliding side walls and a roof allows reducing the time and human effort of loading and unloading the car, provides simultaneous loading and unloading of goods both from the side and from the top of the body using various hoisting devices.


Author(s):  
S. S. Vasiliev ◽  
D. M. Korobkin ◽  
S. A. Fomenkov

To solve the problem of information support for the synthesis of new technical solutions, a method of extracting structured data from an array of Russian-language patents is presented. The key features of the invention, such as the structural elements of the technical object and the relationships between them, are considered as information support. The data source addresses the main claim of the invention in the device patent. The unit of extraction is the semantic structure Subject-Action-Object (SAO), which semantically describes the constructive elements. The extraction method is based on shallow parsing and claim segmentation, taking into account the specifics of writing patent texts. Often the excessive length of the claim sentence and the specificity of the patent language make it difficult to efficiently use off-the-shelf tools for data extracting. All processing steps include: segmentation of the claim sentences; extraction of primary SAO structures; construction of the graph of the construct elements f the invention; integration of the data into the domain ontology. This article deals with the first two stages. Segmentation is carried out according to a number of heuristic rules, and several natural language processing tools are used to reduce analysis errors. The primary SAO elements are extracted considering the valences of the predefined semantic group of verbs, as well as information about the type of processed segment. The result of the work is the organization of the domain ontology, which can be used to find alternative designs for nodes in a technical object. In the second part of the article, an algorithm for constructing a graph of structural elements of a separate technical object, an assessment of the effectiveness of the system, as well as ontology organization and the result are considered.


2013 ◽  
Vol 44 (2s) ◽  
Author(s):  
Sirio Rossano Secondo Cividino ◽  
Rino Gubiani ◽  
Gianfranco Pergher ◽  
Daniele Dell’Antonia ◽  
Emiliano Maroncelli

Operating in woods might be highly dangerous as it takes place in hard environments because of slopes, uneven ground and the presence of the underwood that may prevent machines and operators from moving. The chainsaw is a widely-used tool in agriculture, in forestry as well as for professional and hobby-related purposes. This article has the aim to highlight the state of injuries both for professional and domestic uses. The research focused on web-based report of news published between 2007 and 2012 about mortal and non-mortal accidents occurred in Italy and involving people who were using a chainsaw. On the whole, 336 cases were collected over a 5-year period. The results of the work are represented by a series of thematic maps related to the causative agent, the age of the injured and the seat of the injury. Furthermore, it is confirmed that the operator’s head is the most exposed area of the body and is often correlated with the death of the operator (death is often due to collision against the chainsaw blade, facial traumas as well sudden contact with parts of the plant). The study shows the dangers of chainsaw. Even workers experts are involved in serious injury and death. The study highlights the needing of looking for technical solutions and specific procedures for training unskilled worker.


2015 ◽  
Vol 812 ◽  
pp. 375-380 ◽  
Author(s):  
D. Pósalaky ◽  
János Lukács

The magnitude of different aluminium alloys, especially the ones with higher strength, are increasing in the structural engineering, not just the usual applications (like the aerospace industry) but more likely in the automotive industry. There are more assumptions of the effective use of aluminium; we should highlight two important factors, the technological and the applicability criterions. The technological criterion is the joining of structural elements, frequently with welding thus the technological criterion ultimately is the weldability. The assumption of applicability comes from the loading capability of these structures, which is typically cyclic loading so the key issue from the point of view of applicability is the resistance to fatigue. This article represents physical simulation and fatigue test results both on the base material and on the welded joints.


2019 ◽  
Vol 56 (2) ◽  
pp. 466-468
Author(s):  
Ramona Nagy ◽  
Remus Stefan Maruta ◽  
Mihai Hluscu ◽  
Karoly Menyhardt

The automotive industry is one of the largest consumer of flexible hoses for fluids such as fuel or cooling. In order to limit the post production costs, every aspect of a vehicle must be tested in advance, including the lifespan, durability or failure of hoses. Throughout this paper summary results are presented for 4 types of fuel line hoses tested under controlled displacement loads at various pressures in order to validate the Finite Element Method simulations.


Semiotica ◽  
2016 ◽  
Vol 2016 (208) ◽  
pp. 259-284
Author(s):  
Mohamed Bernoussi

AbstractAfter giving a synthesis about a possible semiotics of the body and its conditions, we will deal with the question of the semiosis of the body in sexual literature in two periods of the arabo-muslim culture. The first period concerns the second century of hegira (the eightieth century), a decisive period of young and already powerful arabo-muslim society. Through Al Jahiz’s works, a very busy and prolific writer, we will study different discourses on the body, notably on homosexuality, heterosexuality and the opposition between black and white bodies. The second example constitutes an occasion for us to grasp the evolution of the semiosis of the body in a new period and with a specific writer who is Al Soyouté, a scholar of the sixteenth century. We will focus particularly on Al Soyouté’s new ideas on the body and his original references to the Greek corpus, but also to the traditions of Coran and Hadith.


2020 ◽  
Vol 122 (14) ◽  
pp. 1-32
Author(s):  
Faith Connolly ◽  
Tracey L. Durant ◽  
Rachel E. Durham

Background/Context The introduction of a racial equity policy provided an opportunity for one school district to examine its systems. The policy addressed structural inequity, as well as cultural literacy issues, internal personal biases, and other power dynamic differences in a historically impacted city. Researchers from a local research-practice policy partnered with the district Director of Equity to support the implementation of a racial equity policy that could be informed by data and research. Purpose/Objective The purpose of this study was to investigate if early warning indicators, specifically indicators of organizational readiness and a Director's leadership skills, could guide the implementation of a racial equity policy. Research Design The study explored using two instruments adapted from Adaptive Leadership to provide iterative feedback on the implementation of a new, challenging policy. Through development of an interview protocol that included potential leading indicators as well as qualitative prompts focused on readiness challenges and successes, the research team and Director met every three weeks to generate data and reflect on preliminary themes. Findings/Results The team found that the indicators of organizational readiness and leadership skill were helpful in informing on the current status and developing new ideas and scenarios to ease implementation of the policy. The qualitative data yielded themes highlighting critical tensions and focus areas essential for practitioners to consider when implementing a racial equity policy. Conclusions/Recommendations The primary implication of the study is that leaders and researchers need to focus on systems-level organizational work and the development of leadership skills. Leaders must anticipate district and school staff defaulting to technical rather than adaptive solutions, especially when addressing the goal of equity. While technical solutions are expedient and comfortable, they will not lead to true or continuous improvement. Moreover, the professional development work required is not singular or temporary, but rather embedded work, likely over many years. Also critical is team learning through authentic conversations making space for individuals’ lived experiences. A final step for developing systems-thinking is iteratively defining the metrics each office and school should be using to support this work formatively. As districts engage in such efforts, a focus on proximal, process-based measures will be more immediately helpful, particularly measures for staff, and not necessarily student data.


Sign in / Sign up

Export Citation Format

Share Document