VESTNIK of Samara University. Aerospace and Mechanical Engineering最新文献_第2页

Reliability-oriented design of PCM thermodimensionally stable space structures 以可靠性为导向设计 PCM 热维稳定空间结构

VESTNIK of Samara University. Aerospace and Mechanical Engineering Pub Date : 2024-07-10 DOI: 10.18287/2541-7533-2024-23-2-40-48

L. A. Klimakova

引用次数: 0

Forecasting the parameters of performance monitoring of complex technical systems 预测复杂技术系统性能监测参数

VESTNIK of Samara University. Aerospace and Mechanical Engineering Pub Date : 2024-07-10 DOI: 10.18287/2541-7533-2024-23-2-109-120

A. A. Zolotov, V. V. Rodchenko, E. V. Gusev, I. A. Karyagin

引用次数: 0

Modelling width of the spectral component of a gas-turbine engine gearbox output shaft speed 燃气涡轮发动机变速箱输出轴转速频谱分量的建模宽度

VESTNIK of Samara University. Aerospace and Mechanical Engineering Pub Date : 2024-07-10 DOI: 10.18287/2541-7533-2024-23-2-157-166

A. E. Sundukov, E. V. Shakhmatov

{"title":"Modelling width of the spectral component of a gas-turbine engine gearbox output shaft speed","authors":"A. E. Sundukov, E. V. Shakhmatov","doi":"10.18287/2541-7533-2024-23-2-157-166","DOIUrl":"https://doi.org/10.18287/2541-7533-2024-23-2-157-166","url":null,"abstract":"Gearbox is the most stressed component in an aircraft gas-turbine engine. This implies the need for finding ways to monitor its technical condition. Practice shows that the most efficient method is vibration-based diagnostics. However, this method requires the use of sophisticated measurement systems and highly skilled personnel. This paper shows that errors of gear coupling manufacture and assembly, characteristics of machine operating mode, design factors, frequency modulation of the carrier of the engine rotor speed in the stationary mode of its operation, and wear of teeth flanks determine the width of the spectral component of the gearbox output shaft speed. Using the results obtained from the developed model of the width of gear tooth spectral component, ratios for width of the spectral component of the signal of the “standard” tachometric speed sensor of the gearbox output shaft speed and the corresponding spectral component of its vibration were obtained. Models for repaired and newly manufactured gearboxes and gearboxes with tooth flank wear were proposed. This allowed the development of a number of new diagnostic indicators of a defect. Several examples of the use of these new diagnostic indicators are given for the gearbox of one of turbo-prop engines. The results obtained provide an opportunity to assess the gearbox technical condition in operation.","PeriodicalId":265584,"journal":{"name":"VESTNIK of Samara University. Aerospace and Mechanical Engineering","volume":"110 12","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141835519","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}

引用次数: 0

Investigation of the dynamic characteristics of the pneumatic-mechanical drive of the installation movements of machine mechanisms 机器机构安装运动的气动机械传动动态特性研究

VESTNIK of Samara University. Aerospace and Mechanical Engineering Pub Date : 2024-07-10 DOI: 10.18287/2541-7533-2024-23-2-132-142

S. Prikhodko, V. S. Sidorenko, D. Korotych

引用次数: 0

Method of first-approximation calculation of take-off weight of a light aircraft with a hybrid propulsion system 采用混合推进系统的轻型飞机起飞重量的第一近似计算方法

VESTNIK of Samara University. Aerospace and Mechanical Engineering Pub Date : 2024-07-10 DOI: 10.18287/2541-7533-2024-23-2-62-73

A. V. Sychev, I. V. Arbuzov, Y.A. Ravikovich

{"title":"Method of first-approximation calculation of take-off weight of a light aircraft with a hybrid propulsion system","authors":"A. V. Sychev, I. V. Arbuzov, Y.A. Ravikovich","doi":"10.18287/2541-7533-2024-23-2-62-73","DOIUrl":"https://doi.org/10.18287/2541-7533-2024-23-2-62-73","url":null,"abstract":"The article discusses a method for calculating, as a first approximation, the take-off weight of a light aircraft with a hybrid power plant based on piston and electric engines. A brief overview of organizations dealing with hybrid power plants is given. The influence of the degree of hybridization of the power plant on the take-off weight of the aircraft is shown. The degree of hybridization of a power plant is understood as a relative value characterizing the distribution of the total power of all engines installed on the aircraft between piston and electric engines. The main parameters necessary to determine the take-off weight of an aircraft to a first approximation are presented. The take-off weight of the aircraft is determined to a first approximation from the equation of its existence. Statistical data of aircraft with different types of power plants are provided on the basis of which calculations are carried out. As a first approximation, the relative mass of the hybrid power plant is determined by analyzing the statistical data of light aircraft with piston and electric engines, from which the corresponding graphs are constructed. After the calculations, conclusions were drawn about the optimal range of characteristics of a light aircraft with a hybrid power plant.","PeriodicalId":265584,"journal":{"name":"VESTNIK of Samara University. Aerospace and Mechanical Engineering","volume":"36 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141659060","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}

引用次数: 0

Reducing energy consumption of vertical take-off and landing unmanned aerial vehicle using hybrid technical solutions 利用混合技术解决方案降低垂直起降无人飞行器的能耗

VESTNIK of Samara University. Aerospace and Mechanical Engineering Pub Date : 2024-04-17 DOI: 10.18287/2541-7533-2024-23-1-38-54

O. Lukyanov, V. H. Hoang, V. A. Komarov, D. V. Nazarov, E. Kurkin, J. G. Quijada Pioquinto, V. Chertykovtseva

{"title":"Reducing energy consumption of vertical take-off and landing unmanned aerial vehicle using hybrid technical solutions","authors":"O. Lukyanov, V. H. Hoang, V. A. Komarov, D. V. Nazarov, E. Kurkin, J. G. Quijada Pioquinto, V. Chertykovtseva","doi":"10.18287/2541-7533-2024-23-1-38-54","DOIUrl":"https://doi.org/10.18287/2541-7533-2024-23-1-38-54","url":null,"abstract":"The paper describes possibilities of increasing the energy efficiency and reducing the takeoff weight of unmanned medium-heavy vertical takeoff and landing aerial vehicles of the airplane type. The authors propose a new hybrid type of unmanned aerial vehicle with a hybrid propulsion system, its aerodynamic design, method of realization of vertical takeoff/landing and cruising mode of flight which make it possible to reduce the takeoff weight of the aircraft, the weight of the basic propulsion system and the mass growth factor in comparison with the existing unmanned aerial vehicle of similar class, made according to the previously known technical solutions. The authors propose a methodology for optimizing the parameters of the configuration of the unmanned aerial vehicle considering the peculiarities of the implementation of vertical takeoff. The paper presents calculations of characteristics of vertical takeoff and landing unmanned aerial vehicles of existing types and the new hybrid type. The authors give quantitative estimates of improving unmanned aerial vehicle characteristics due to the new proposed technical solutions.","PeriodicalId":265584,"journal":{"name":"VESTNIK of Samara University. Aerospace and Mechanical Engineering","volume":" 9","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140692406","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}

引用次数: 0

Optimization of trajectory motion of the first stage of an aerospace system 优化航空航天系统第一级的轨迹运动

VESTNIK of Samara University. Aerospace and Mechanical Engineering Pub Date : 2024-04-17 DOI: 10.18287/2541-7533-2024-23-1-80-92

A. A. Khramov

引用次数: 0

Neural network controller of a gas turbine plant low emission combustor 燃气轮机厂低排放燃烧器的神经网络控制器

VESTNIK of Samara University. Aerospace and Mechanical Engineering Pub Date : 2024-04-17 DOI: 10.18287/2541-7533-2024-23-1-109-122

V. Avgustinovich, T. A. Kuznetsova, A. A. Sukharev

{"title":"Neural network controller of a gas turbine plant low emission combustor","authors":"V. Avgustinovich, T. A. Kuznetsova, A. A. Sukharev","doi":"10.18287/2541-7533-2024-23-1-109-122","DOIUrl":"https://doi.org/10.18287/2541-7533-2024-23-1-109-122","url":null,"abstract":"One of the most important gas turbine engine components is the combustion chamber, the main source of harmful emissions. The study is devoted to the central issues of designing and testing of an automatic control system of harmful emissions and pressure pulsations in flame tubes of a gas turbine plant with a capacity of 16 MW GTP-16 based on a PI-controller with a built-in neural network mathematical model of a low-emission combustor (LEС). Algorithms for a neural network controller of emission of nitrogen oxides and carbon monoxide into the atmosphere, as well as pressure pulsations in the LEC’s flame tubes were developed. The algorithms are given in a graphical programming environment and integrated into the automatic control system of GTP-16, implemented on the PXI NI hardware and software platform. The performance of the emission controller was checked during bench tests on the GTP-16 simulator with LEС neural network model serving as a virtual emission sensor. The errors in estimating the emission of nitrogen and carbon oxides and pressure pulsations in the flame tubes were determined. The normality of the error distribution of the developed nitrogen oxide emission model was proven. A conclusion about the prospects of using neural networks for the development of an adaptive control system of emissions and flame tube pressure pulsations for LECs of the gas turbine plants was drawn.","PeriodicalId":265584,"journal":{"name":"VESTNIK of Samara University. Aerospace and Mechanical Engineering","volume":" 30","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140691198","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}

引用次数: 0

Mathematical model of a generalized quadcopter kinematic scheme and its software implementation 通用四旋翼飞行器运动学方案的数学模型及其软件实现

VESTNIK of Samara University. Aerospace and Mechanical Engineering Pub Date : 2024-04-17 DOI: 10.18287/2541-7533-2024-23-1-7-20

V. A. Zelenskiy, M. A. Kovalev, D. N. Ovakimyan, V. S. Kirillov

引用次数: 0

Verification of aero-engine numerical rotor models based on virtual static structural and modal tests 基于虚拟静态结构和模态试验的航空发动机数值转子模型验证

VESTNIK of Samara University. Aerospace and Mechanical Engineering Pub Date : 2024-04-17 DOI: 10.18287/2541-7533-2024-23-1-93-108

K. V. Shaposhnikov, S. A. Degtyarev, M. K. Leontiev, S. V. Anisimov

引用次数: 0