Technology in Aerospace Engineering最新文献

A review of studies on air-breathing turbine engines from an energy–exergy viewpoint 从能量-能量角度回顾有关喷气涡轮发动机的研究

Technology in Aerospace Engineering Pub Date : 2023-08-23 DOI: 10.30699/jtae.2023.7.3.5

J. Pirkandi, AliReza Zolfi, Gholam Reza Hashemzadeh

引用次数: 0

Methods for Attenuation of Helicopter 直升机衰减方法

Technology in Aerospace Engineering Pub Date : 2023-08-23 DOI: 10.30699/jtae.2023.7.3.6

H. Parhizkar, A. Moradi, Alireza Hejazi zade

引用次数: 0

Multistate UAV system reliability modelling and analysis with a random mission plan 采用随机任务计划的多态无人机系统可靠性建模与分析

Technology in Aerospace Engineering Pub Date : 2023-08-23 DOI: 10.30699/jtae.2023.7.3.1

Mohammad Ali Farsi

{"title":"Multistate UAV system reliability modelling and analysis with a random mission plan","authors":"Mohammad Ali Farsi","doi":"10.30699/jtae.2023.7.3.1","DOIUrl":"https://doi.org/10.30699/jtae.2023.7.3.1","url":null,"abstract":"The study and modeling of aerospace systems have been conducted by various researchers. The success of missions and related costs has always been one of the concerns of researchers and due to the sensitivity of the operations and the variety of missions, this issue is more important today. In the past, aerospace equipment issues such as subsystem and component design, consumables, operation planning, maintenance, and depreciation were considered independently for each aircraft. In the past decade, due to the increasing use of drones and their impact on various military and civilian operations, the subject of operations and their impact on each other, and ultimately the impact on the quantity and quality of air operations, these parameters have been modeled together. In this research, an Unmanned Air Vehicle (UAV) system that includes several UAVs that has a parallel structure and able to perform different missions to detect, follow and attack based on user needs, has been considered. UAVs do not have a fixed failure rate and are so-called multi-state, and the quality of operations and its success rate are defined according to the UAV conditions, the amount of failure, and the type of failure. It is also assumed that each UAV has the ability to perform different operations, but the missions are randomly assigned, so in this study, universal generation function and Markov chain methods for modeling are developed. A UAV system has been considered, the ability and accuracy of these methods in predicting system success are demonstrated.","PeriodicalId":412927,"journal":{"name":"Technology in Aerospace Engineering","volume":"156 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-08-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139349450","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

A preliminary study to investigate the use of Advanced Air Mobility in Iran 关于在伊朗使用先进空中机动技术的初步研究

Technology in Aerospace Engineering Pub Date : 2023-08-23 DOI: 10.30699/jtae.2023.7.3.4

Mehran Nosratollahi, Seyyed Ali Saadatdar Arani

引用次数: 0

Evaluation of Multidisciplinary Design Optimization of Air Taxi and Classic Design 空中滑行和经典设计的多学科优化设计评估

Technology in Aerospace Engineering Pub Date : 2023-08-23 DOI: 10.30699/jtae.2023.7.3.2

Hossein Sadati, Amirhossein Adami, Mohammad mehdi Ebadi

{"title":"Evaluation of Multidisciplinary Design Optimization of Air Taxi and Classic Design","authors":"Hossein Sadati, Amirhossein Adami, Mohammad mehdi Ebadi","doi":"10.30699/jtae.2023.7.3.2","DOIUrl":"https://doi.org/10.30699/jtae.2023.7.3.2","url":null,"abstract":"In recent years, the use of air taxis as a suitable solution for transporting cargo and passengers, has been considered especially in short distances and in the city. One of the most important issues in aerial vehicle design is related to design optimization, which increases the performance in comparison with similar products. Complex systems, such as air taxis, are involved in several subsystems with interacting and sometimes conflicting effects that are difficult to derive the feasible solution with classical methods. Modern optimal design methods such as multidisciplinary design optimization can derive the optimal design while satisfying all the constraints and limitation. In this article, after modeling the different subsystems of an air taxi, multidisciplinary design optimization of an air taxi based on a given mission is discussed. The optimization framework is selected based on AAO by considering structure, aerodynamics, flight mechanics, propulsion and electrical power. Total mass of air taxi is selected as cost function. In addition, performance of gradient and evolutionary optimization algorithms has also been investigated. Finally, the optimal results are compared and evaluated with the results of two classical design methods including \"weight estimation\" and \" sensitivity of design coefficients\". The results confirm the improvement of optimal solution with compare of classical methods.","PeriodicalId":412927,"journal":{"name":"Technology in Aerospace Engineering","volume":"129 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-08-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139349488","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

Analysis of Large Deflection of Nanobeams with Circular Cross Section under Distributed Load Taking into Surface Effects 考虑表面效应的分布荷载作用下圆形截面纳米梁的大挠度分析

Technology in Aerospace Engineering Pub Date : 2023-08-23 DOI: 10.30699/jtae.2023.7.3.3

Ehsan Raeisi Estabragh

引用次数: 0

Use of Solid Fuel Ramjet Technology in the New Generation of Artillery Shells 固体燃料冲压发动机技术在新一代炮弹中的应用

Technology in Aerospace Engineering Pub Date : 2023-06-22 DOI: 10.30699/jtae.2023.7.2.6

Sobhan Herfat, M. Mahmoodi

引用次数: 0

Optimal Technology Allocation of in the Life Support Subsystem with Maximum Reliability 最大可靠性生命保障子系统的最优技术分配

Technology in Aerospace Engineering Pub Date : 2023-06-22 DOI: 10.30699/jtae.2023.7.2.4

M. Mahmoudi, A. B. Basohbate Novinzadeh, F. Pazooki

引用次数: 0

Design and Optimization of Two- stage AC/DC Power Supply Based on Increasing Reliability for Aircraft Power Supply 基于提高飞机电源可靠性的两级交/直流电源设计与优化

Technology in Aerospace Engineering Pub Date : 2023-06-22 DOI: 10.30699/jtae.2023.7.2.3

Seyed Mehdi Nouri, Mehdi Alami Rostami, G. Kahe

引用次数: 0

Using Neural Network to Estimate the Success Percent of Spacecraft Active Fault-Tolerant Controller 用神经网络估计航天器主动容错控制器的成功率

Technology in Aerospace Engineering Pub Date : 2023-06-22 DOI: 10.30699/jtae.2023.7.2.2

R. Moradi, Jamila Hamzeyee

引用次数: 0