Road transport
The problems of road transport
The article presents two methods of analytical construction of the trajectory of an automobile vehicle by means of a polynomial approximation; the convergence of the proposed algorithms is estimated with the method described in [1]. This article continues the research of [1].
The approximate construction of trajectories makes it possible to investigate the movement of an automobile vehicle faster, in comparison with the construction and calculation of the FEM model, to facilitate work on assessing the performance of internal security factors, and also helps to verify the correctness of the developed FEM model.
Transport equipment
The grading of the turning mechanisms (MP) of caterpillar machines (GMs) by their type, which influences the kinematics of the rotation of the GM, specifies the features of MP and their basic properties. Particular attention is paid to theoretical studies of the kinematic properties of the little-known IV type IV MP and to the analysis of its influence on the kinematics of the rotation of the GM. Comparative calculated data on MP of various types are given, in particular, the influence of the MP type on the speed properties of fast track crawler machines (BSM), which determine the possibility of their application in the structures of similar machines, is estimated. A mathematical dependence of the angular velocity of the rotation of the bogie is obtained depending on the ground conditions and the design curvature of the rotation. Based on the analysis of the properties of the GM with the considered MP of the IV type, conclusions are drawn about its main operational capabilities from the point of view of application in high-speed crawler machines (BSM) and tractors. The main shortcomings of PGM with MP of the IV type, which limit the use of the latter in the designs of modern GM, are identified.
Construction
Road safety
Economics and management
Engineering education
Military Affairs
Materials 76th scientific-methodical and scientific-research conference MADI. Section "Reliability and quality problems in the road transport complex"
Currently, the ice as object destruction is seen as the single crystal, which occur on the edges of the main voltage. In our view, the impurities contained in the ice in the form of air bubbles, salts, dust, organic substances, etc., do ice structure ragged both on the surface and inside the crystals themselves. As a result, the mechanical properties of ice vary even on adjoining sections of one ice array. On the other hand, ice, according to the authors, ice research, is a viscose-elastic solid, which, when destruction perceives longitudinal, shear compression. Considering that the destruction of the ice will be produced under the impact of the strike, believe that its destruction would occur when efforts only slightly in excess of the limit of elasticity.
When you create a model believe that for polycrystalline ice orderly type there are four possible systems of elastic parameters E – young's modulus and Poisson's ratio m – depending on the direction of the applied effort: the length and breadth of the crystals is relatively c-axis.
The article discusses two models for breaking the ice: Math and a regression, which showed high convergence on indicators of regression.
In the first case, the ice model represents an infinite plate small thickness based on elastic connection alternating rigidity, which are located on the hard ground. For breaking the ice punch, effective force of destruction directed along the slip planes.
In the second case to confirm the received model theoretically breaking the ice numerical experiment was carried out, which takes into account the basic mechanical properties of ice, geometrical parameters of the chosen model of ice and factors that influence on the strength of ice: the amount of external influence, the thickness, the thickness of the ice crystal spikes, young's modulus, the height of the ice layer.
Analysis of convergence of research results on the basis of the obtained models confirmed the hypothesis of breaking the ice as viscose-elastic solid body that perceives longitudinal fracture, shear compression.Materials 76th scientific-methodical and scientific-research conference MADI. Section "Philosophy and science"
The article is devoted to the problem of knowledge development as the basis of human belief. The author emphasizes that knowledge is the basis from which grow all human beliefs. The author approaches the study of the problem using the principle of development and traces the formation of the scientific picture of the world from mythological beliefs to modern civilization. The author also analyzes formation and structure of belief and influence on it, both the world as a whole, and internal development of the personality of the person, his delusions and their overcoming. He considers the formation of personal outlook in dynamics, notes the influence of external and internal factors on it. The author notes that the question of the correlation between the worldview and the scientific picture of the world cannot be solved unambiguously, these concepts coincide and at the same time do not coincide. The author also notes the peculiarities of the formation of personal worldview, when there is a discrepancy between its level and the worldview of the society or social group to which the person belongs. This discrepancy overcomes to the extent, when a function of the worldview grows up, that contributes the development of relevant sustainable skills of thinking and practical action. So the belief of the individual is formed.
The concept of self-organization is now widely used, both in fundamental and applied science, becoming a paradigm of research of natural and social systems. The article describes the characteristics of open systems characterized by instability, diversity, nonlinearity; reveals the mechanisms of self-organization on the example of the development of objects of inanimate and living nature; substantiates the conclusion about self-organization as a way to move the system to a new level of development. The possibilities of synergetic approach in the study of social systems are demonstrated. For living systems introduced the principle of relativity of motion. The definition of self-organization as a process of spontaneous ordering, the emergence of spatial, temporal, spatiotemporal or functional structures occurring in open nonlinear systems. Living systems are presented as self-organizing systems in continuous chaotic motion. Homeostatic systems are constantly in chaos and this is a feature of medical and biological systems. Biosystems and social systems are similar, as they are in continuous motion, but their state is unique in time and space. The article concludes that this global uncertainty is inherent in all unique, complex biological systems, where we are talking about homeostasis.
The Article is devoted to the interdisciplinary field of knowledge – philosophy of technology as an independent direction of the modern approach of knowledge. In the modern world technology becomes the subject of study of a variety of disciplines, both technical, natural and social. The author emphasizes that the number of special technical disciplines is increasing, however, technology in general is not the subject of consideration of these disciplines. It is the task of philosophical consideration. The author considers the history of technology analysis as a phenomenon, the stage of technical optimism and technical pessimism, marks about more constructive approach of the discussion of issues of technique, function, technology. The author considers the technique as a means of resolving a certain human need. The author observes that the science investigates the cause, and the technique feasibility. Social philosopher Arnold Gelen, the author notes, was the first to consider the emergence of symbiosis of technology, industry and politics. And the main essence of the modern stage is the widespread introduction of information technologies – informatization of society. The author concludes that humanity is on the threshold of a new civilization, which will be fundamentally different from all the social formations that have existed so far.
The term "fundamentalism" generally refers to adherence to a doctrine or ideology to "fundamental" principles, ideas or texts that form the basis of a doctrine or a current. With regard to religion, the term has received a narrower meaning: fundamentalists tend to call supporters of "cleansing" the creed of later innovations, layers and borrowings and return to the "origins", "roots" of a particular creed. Despite the fact that fundamentalism in the modern world is associated with extremist religious movements and teachings, religious fundamentalism was born, developed and quite successfully thrives in the United States. Globally, there is a clear inverse relationship between the level of economic development of a society and its level of religiosity, but the US is a distinct exception to this rule. Fundamentalism appeared as one of the possible answers to the challenge of modernization, it is associated with the development of the Protestant movement and was formed among American Protestants in the late XIX – early XX century. American fundamentalism has undergone a significant evolution. Fundamentalists were able to master the media and the Internet space and are now a significant force in American public life. A common mistake is to regard fundamentalism as a form of conservatism. In fact, these two concepts are fundamentally different.