Proceedings of the International Conference on Aviamechanical Engineering and Transport (AviaENT 2019)最新文献

{"title":"Improving the Organization of Traffic in the Framework of the Development of Integrated Schemes for the Organization of Traffic for Small Cities (by the Example of Isilkul)","authors":"I. Teterina, E. Parsaev, A. Kolesnikov, S. Glushkov","doi":"10.2991/aviaent-19.2019.63","DOIUrl":"https://doi.org/10.2991/aviaent-19.2019.63","url":null,"abstract":"The increase in the level of motorization in the country leads to an increase in the intensity of traffic on the main highways of settlements. At the intersections of the road network, there are unacceptable, in terms of safety, conflicts of traffic and pedestrian flows. Therefore, the development of integrated traffic management schemes for small cities is an urgent task today. The article presents the features of the organization of traffic, which must be taken into account when developing complex schemes of traffic management for small cities. Reducing the total conflict load at the intersections of the road network is considered as one of the activities aimed at improving road safety. The results of studies aimed at determining the number of conflict points, as well as the results of theoretical studies confirming the validity of the proposed measures are reflected. The results of modeling of possible transport delays are presented both in the current traffic management and in the implementation of the proposed measures. Keywords—small cities, complex traffic management scheme, conflict loading, traffic intensity, traffic delays.","PeriodicalId":158920,"journal":{"name":"Proceedings of the International Conference on Aviamechanical Engineering and Transport (AviaENT 2019)","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132390143","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The Vertical Dynamics of the Car, Taking into Account the Irregularity of the Track Gauge","authors":"V. Gozbenko, S. K. Kargapol’tsev, B. O. Kuznetsov, Yu. I. Karlina, A. Karlina, D. S. Leonovich","doi":"10.2991/aviaent-19.2019.25","DOIUrl":"https://doi.org/10.2991/aviaent-19.2019.25","url":null,"abstract":"The paper deals with the vertical dynamics of the car to ensure the safety of trains, the reliability of the cars and the track. It is accepted that the dynamic model of the car has five degrees of freedom. The complex oscillatory process is divided into separate components: vertical, transverse and longitudinal horizontal. It is taken into account that the springsuspended weight of the car can also make angular oscillations. The equations of motion of a mechanical system are composed using the second-kind Lagrange equations by first generating the expressions for potential and kinetic energy. Since one of the most important problems in the dynamics of rolling stock is the study of forced oscillations of railway vehicles caused by irregularities of rails, therefore, the formulas of Professor N.N. Kudryavtsev were used as a kinematic effect on bogies. In the model being developed, the two wheels of the car trolley will be considered as one, then the equivalent perturbation is the average value of the perturbations transmitted to each wheel, that is, the pitching of the bogies can be neglected. Isolated perturbations are determined using reasoning about the time of passage of the wheels over the track irregularity. The obtained differential equations are rather complicated for an analytical solution. Therefore, to find solutions, the MathCAD mathematical software package was used. It provides a set of built-in functions for the numerical solution of differential equations. The massinertial characteristics and geometrical dimensions of the gondola car of model 12-132 are taken as input data. The speed of movement of the car and the length of the irregularities varied in a fairly wide range. As a result of numerical modeling, graphs of linear and angular oscillations versus irregularity lengths were obtained. It was found that the amplitude of oscillations varies within certain limits from 0 to 0.007 (vertical oscillations) and from –10 to +10 rad. (for the speed of 20 m/s and the length of the irregularity of 25 m). Keywords—track gauge; vertical dynamics; safety of trains; dynamic model; oscillatory process","PeriodicalId":158920,"journal":{"name":"Proceedings of the International Conference on Aviamechanical Engineering and Transport (AviaENT 2019)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121630231","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Investigation of the Effectiveness of Oscillation Control in a Three-Mass System Based on the Additional Feedbacks","authors":"N. Kuznetsov, E. Dolgih, I. Iov","doi":"10.2991/aviaent-19.2019.40","DOIUrl":"https://doi.org/10.2991/aviaent-19.2019.40","url":null,"abstract":"Using the example of a three-mass calculating scheme the article presents the results of a study of the effectiveness of using the additional feedbacks synthesized by solving the inverse dynamic problems for a given type of elastic torque to limit the oscillatory motions. In this article, we described a mathematical model of a three-mass mechanical system considering viscous friction forces. The results of numerical modeling of the effectiveness of the proposed additional feedbacks on the velocity and acceleration of the motion drive and on the derivatives of the elastic torque are presented. Keywords— three-mass system; oscillation control; additional feedbacks; inverse problem","PeriodicalId":158920,"journal":{"name":"Proceedings of the International Conference on Aviamechanical Engineering and Transport (AviaENT 2019)","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122564728","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Feasibility Study of Ultrasonic De-Icing Technique for Aircraft Wing Ice Protection","authors":"V. Daniliuk, E. Pamfilov, A. Daniliuk, Yuanming Xu","doi":"10.2991/aviaent-19.2019.15","DOIUrl":"https://doi.org/10.2991/aviaent-19.2019.15","url":null,"abstract":"Flight in icing conditions brings significant safety risks due to aircraft aerodynamic performance reduction, stability and controllability deterioration, failures, mechanical damages. For reliable operation in icing conditions active antiicing/de-icing systems are needed, which entail at the present time considerable on-board power consumption, additional weight, installation or maintenance difficulties and other drawbacks. Moreover, a lot of incidents still appear due to inflight icing. Nowadays, it is a high demand for efficient and reliable de-icing techniques. Recent studies presented hybrid and non-thermal in-flight ice protection methods with potentials to be more advantageous, including ultrasonic de-icing technique. In this paper, the feasibility study with semi-hard lead zirconate titanate (PZT) ultrasonic Langevin-type transducer was carried out. The theoretical model explaining ice detaching mechanism with applied ultrasonic guided wave propagation theory was described. The verifying experiment was conducted to prove feasibility of de-icing. Prospects for further research were given. Keywords—aircraft wing de-icing; ultrasonic de-icing; ice protection system; piezoelectric transducer","PeriodicalId":158920,"journal":{"name":"Proceedings of the International Conference on Aviamechanical Engineering and Transport (AviaENT 2019)","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114514535","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Mathematical Modeling of the Differential Dynamics of the Galvanic Process of Restoring the Seats of the Main Supports of Autotractor Engines","authors":"D. Rozhkov, E. Eltoshkina, P. Ilyin, O. Svirbutovich","doi":"10.2991/aviaent-19.2019.54","DOIUrl":"https://doi.org/10.2991/aviaent-19.2019.54","url":null,"abstract":"Repair of agricultural machinery is one of the most important issues related to maintaining the efficiency of the fleet of vehicles used in the agricultural sector of the country. High equipment with high-performance machines and mechanisms obliges modern repair production to raise its technical level of repair technology, to improve in every way the organization of production, to expand the technical capabilities of production by introducing new technology and advanced technology. Mathematical modeling based on the results of a sample of observations on the current evolution of the galvanic process development for a given technological product (cylinder block bearings) using the third-order spline approximation method, continuous interpolation of the state vector of the galvanic process is constructed. The method of constructing a mathematical model of the electroplating process allows us to raise the question of finding the optimal electrolysis mode in the process of restoring the seats of the engine bearings core blocks. In this case, the optimal electrolysis mode is understood as an electrolytic process, which, on the one hand, provides the specified quality indicators of electroplating, and on the other (simultaneously), minimizes the energy and material costs for its practical implementation. The results of operational tests confirmed the high wear resistance of the electroplated coating, which exceeds the wear resistance of the base material by 2030%. Keywords—mathematical model, galvanic process, experiment, repair of agricultural machinery.","PeriodicalId":158920,"journal":{"name":"Proceedings of the International Conference on Aviamechanical Engineering and Transport (AviaENT 2019)","volume":"15 1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131069837","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The Analysis of Wear Metals in Oils","authors":"S. A. Reschikov, D. Denisov, V. M. Korotash, A. Strelnikov, D. V. Kokourov","doi":"10.2991/aviaent-19.2019.60","DOIUrl":"https://doi.org/10.2991/aviaent-19.2019.60","url":null,"abstract":"","PeriodicalId":158920,"journal":{"name":"Proceedings of the International Conference on Aviamechanical Engineering and Transport (AviaENT 2019)","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134311492","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Application of the System Engineering Method when Researching the Carat Pedestrian","authors":"V. Zelikov, N. Zlobina, G. Denisov, A. Skrypnikov, E. Kliavin","doi":"10.2991/aviaent-19.2019.72","DOIUrl":"https://doi.org/10.2991/aviaent-19.2019.72","url":null,"abstract":"Options of finding the removal distance of the vehicle from the scene of the pedestrian accident, which came at an arbitrary angle being arbitrary to the vehicle from behind passing obstacle, are considered. Changes in the estimated equations are made. Universal dependences of geometric and kinematic conditions that can be used to study pedestrian accident came from behind both passing and oncoming obstacles are systematized and obtained.","PeriodicalId":158920,"journal":{"name":"Proceedings of the International Conference on Aviamechanical Engineering and Transport (AviaENT 2019)","volume":"182 1-3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133747056","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effect of Technological Defects on Reliability of Engineering Products","authors":"S. Yakovleva, S. Makharova, A. V. Ptitsyna","doi":"10.2991/aviaent-19.2019.70","DOIUrl":"https://doi.org/10.2991/aviaent-19.2019.70","url":null,"abstract":"—The nature and reasons of two cases of premature failure of engineering products are investigated (metal-composite cylinder for moto fuel and metal rod of bulldozer's hydraulic cylinder). By methods of metallography and fractography with using the basic provisions of metallurgy, physics of metals, physics of strength and fracture we have identified the localization of initial cracks, the micromechanisms of their formation and subsequent development, and described the general picture of failure. It is shown that the main physical and mechanical causes of cylinder’s failure are connected with coarsening and heterogeneity of intermetallic phase distribution in an alloy and the increased roughness of internal surface processing on the metal liner. It is established that the reason of the rod failure was unsatisfactory quality of metal caused by errors of heat treatment before chrome plating. As a result, there are structural inhomogeneities (ferritic banding, non-metallic inclusions) in the hardened layer and in the transitional zone to the core area which initiated the fatigue cracks. The main mechanism of failure of the automobile gas tank and bulldozer’s hydraulic-cylinder rod is metal fatigue that evolves in time and is induced by manufacturing processes errors.","PeriodicalId":158920,"journal":{"name":"Proceedings of the International Conference on Aviamechanical Engineering and Transport (AviaENT 2019)","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134107238","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Transport and Logistics Systems Development Based on the Transport Modes Comparative Advantages","authors":"S. Borodulina, L. Trofimova, E. O. Chebakova","doi":"10.2991/aviaent-19.2019.66","DOIUrl":"https://doi.org/10.2991/aviaent-19.2019.66","url":null,"abstract":"Optimal configuration of a regional transport and logistics system should be chosen from the standpoint of the goal of regional development, the environmental component of decision-making, and according to the criteria that determine the advantages and disadvantages of a particular mode of transport. The article outlines the main approaches to appreciation of the comparative advantages of certain modes of transport, and transport and logistics systems. The factors influencing the development of transport and industries on the region's economy have been identified. Based on the data obtained from statistics, regional economics, relevant ministries and agencies, as well as rom scientific research carried out by the authors earlier, the results of the research into advantages of the main types of transport have been provided for a number of indicators used in the justification of regional transport systems in line with the problems to be solved. The article provides a step-by-step methodology for assessing the comparative advantages of inland waterway transport. The method of hierarchy analysis to justify the type of transport is recommended, which will lead to the faster achievement of the goal set by the subject, or to identification of the priority way to achieve the management goal and develop the transport and logistics system in the region.","PeriodicalId":158920,"journal":{"name":"Proceedings of the International Conference on Aviamechanical Engineering and Transport (AviaENT 2019)","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116307587","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Fractal Model of Elastoplastic Contact of Nominally Flat Rough Surfaces","authors":"V. Tikhomirov, M. Izmerov","doi":"10.2991/aviaent-19.2019.64","DOIUrl":"https://doi.org/10.2991/aviaent-19.2019.64","url":null,"abstract":"The problem of parameter estimation of rough surface contact interaction due to 3D modelling of fractal model contact interaction, when they are satisfactory to initial surfaces, is solved. This approach takes into account surface contour basic parameters that are essentially relevant to the results and accuracy of the calculation. Keywordsmodeling, contact stiffness, contact interaction, fractal surface, surface contingence, contact patches.","PeriodicalId":158920,"journal":{"name":"Proceedings of the International Conference on Aviamechanical Engineering and Transport (AviaENT 2019)","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127984861","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}