scholarly journals Using the Telemetry System as an Element of the Engine Operation Monitoring System of UAS

2021 ◽  
Vol 51 (4) ◽  
pp. 25-33
Author(s):  
Teresa Buczkowska-Murawska ◽  
Mariusz Żokowski

Abstract The article presents an engineering approach that allows us to collect engine operation characteristics using built-in telemetry mechanisms, filled with the passive recording system. As a result of the development of the solution, the characteristics of the engine operation were obtained under real conditions, and the universal registration tool was built with a wider application than simply the registration of the engine operating parameters. The development of the solution allowed measurements to be obtained in a passive mode using a distributed architecture for engine monitoring and engine operation characteristics, which would be difficult to obtain and archive without logger production, especially during flight tests.

2021 ◽  
Vol 346 ◽  
pp. 03044
Author(s):  
Andrey Korneev ◽  
Alexandr Kozlov ◽  
Tamara Lavrukhina ◽  
Andrey Strukov

The article presents a system for monitoring high-tech equipment, uses methods of system analysis and decision theory to optimize organizational tasks in the maintenance of high-tech equipment. The possibility of optimizing service channels based on the parameters set by the requirements for performing a certain type of work is considered. The monitoring system of high-tech equipment (MSHTE) is presented in the form of blocks that take into account all types of high-tech equipment, components and assemblies of each of them, technical characteristics, operating parameters, a list of the composition of engineering teams that perform the corresponding maintenance work.


2020 ◽  
Vol 30 (1) ◽  
pp. 620-636
Author(s):  
Adrian Unger ◽  
Dylan Shean ◽  
Fabio G Silva ◽  
Jennifer Nguyen ◽  
Laura B Beebe ◽  
...  

2013 ◽  
Vol 471 ◽  
pp. 229-234
Author(s):  
Zailan Karim ◽  
M.A. Jusoh ◽  
A.R. Bahari ◽  
Mohd Zaki Nuawi ◽  
Jaharah Abd. Ghani ◽  
...  

Fuel injector in automotive engine is a very important component in injecting the correct amount of fuel into the combustion chamber. The injection system need to be in a very safe and optimum condition during the engine operation. The mulfunction of the injection system can be avoided if the current working condition is known and a proper maintenence procedure is implemented. This paper proposes the development of a fuel injector monitoring method using strain signals captured by a single-channel strain gage attached on the fuel injector body. The fuel injector was operated under three main sets of parameters; pulse width (ms), frequency (Hz) and pressure (bar) which were varried from 5 ms to 15 ms, 17 Hz to 25 Hz and 10 bar to 70 bar respectively. The settings produce 27 different engine operations and the strain signal will be captured at each operation. The captured strain signals will be analyzed using I-kazTM Multilevel technique and will be correlated with the main parameters. The relationship between the I-kazTM Multilevel coefficient and the main parameters indicate good correlations which can be used as the guidance for fuel injector monitoring during actual operation. The I-kaz Multilevel technique was found to be very suitable in this study since it is capable of showing consistence pattern change at every parameter change during the engine operation. This monitoring system has a big potential to be developed and improved for the optimization of fuel injector system performance in the automotive industry.


Resources ◽  
2020 ◽  
Vol 9 (4) ◽  
pp. 42
Author(s):  
Marc Elmouttie ◽  
Peter Dean

Slope stability monitoring in open cut mining is increasingly based on the use of a variety of different sensors and associated analytics, each capable of providing part of the understanding required to manage complex geotechnical environments. Designing an integrated monitoring system that is both attainable and fit for purpose can therefore be particularly challenging. In this paper, a systems engineering approach based on a novel methodology is presented to design the slope monitoring system. The methodology uses the rock engineering systems (RES) approach to system decomposition for geotechnical engineering problems, to determine the critical rock mass behaviours requiring monitoring. It follows this with the application of the system theoretic process analysis (STPA) approach, to design the control system for the monitoring system and identify and mitigate sub-optimal configurations. We demonstrate that the approach is practical to implement and supports transparent and defensible decision making for designing and implementing slope monitor systems. We apply the method to the design of a monitoring system for an Australian coal mine and demonstrate how the approach can facilitate the identification and design of new sensing modalities.


2020 ◽  
Vol 12 (12) ◽  
pp. 5061 ◽  
Author(s):  
Misagh Faezipour ◽  
Miad Faezipour

Recent technological developments along with advances in smart healthcare have been rapidly changing the healthcare industry and improving outcomes for patients. To ensure reliable smartphone-based healthcare interfaces with high levels of efficacy, a system dynamics model with sustainability indicators is proposed. The focus of this paper is smartphone-based breathing monitoring systems that could possibly use breathing sounds as the data acquisition input. This can especially be useful for the self-testing procedure of the ongoing global COVID-19 crisis in which the lungs are attacked and breathing is affected. The method of investigation is based on a systems engineering approach using system dynamics modeling. In this paper, first, a causal model for a smartphone-based respiratory function monitoring is introduced. Then, a systems thinking approach is applied to propose a system dynamics model of the smartphone-based respiratory function monitoring system. The system dynamics model investigates the level of efficacy and sustainability of the system by studying the behavior of various factors of the system including patient wellbeing and care, cost, convenience, user friendliness, in addition to other embedded software and hardware breathing monitoring system design and performance metrics (e.g., accuracy, real-time response, etc.). The sustainability level is also studied through introducing various indicators that directly relate to the three pillars of sustainability. Various scenarios have been applied and tested on the proposed model. The results depict the dynamics of the model for the efficacy and sustainability of smartphone-based breathing monitoring systems. The proposed ideas provide a clear insight to envision sustainable and effective smartphone-based healthcare monitoring systems.


1968 ◽  
Vol 90 (1) ◽  
pp. 55-64 ◽  
Author(s):  
W. M. Krassick

Twenty years ago diesel engine manufacturers guaranteed and expected 50,000 to 100,000 miles of trouble-free engine operation. Today’s standards are set at 250,000 to 1/2 million miles operation without a major overhaul. These continually expanding requirements have created new problems for the design engineer. To be competitive and to develop an efficient, long life product the design engineer must have a more complete understanding of his product’s capabilities. He can not always rely on calculations or instinct but must confirm his theories and designs by conducting more comprehensive physical tests. Many months of field testing often was required to evaluate the effect of a single design modification on the durability of the part. If a means could be found to measure the stress levels in these components under actual operating conditions in the laboratory answers could be obtained in a matter of days rather than months. A lack of commercially available test equipment suitable for obtaining these measurements resulted in a decision by Schwitzer to develop such equipment. By the end of 1963 a high speed telemetry system was in operation that could accurately transmit dynamic strain signals from a gas turbine wheel rotating over 100,000 rpm in a 1400 deg F environment. This paper reviews the several phases of this project and describes the telemetry system that finally evolved.


Author(s):  
Amit K. Paspulati ◽  
Krishna C. Veluru ◽  
Kashinath Akki

This paper discusses the methodology for detection of impending failures in gas turbine components. Gas turbine components when exposed to fatigue loading are prone to crack initiation and propagation (structural failure) during operation. Cracks when left undetected over the long duration of continuous engine operation may lead to failure of gas turbine components and unplanned shutdown. This paper presents the crack detection methodology proposed to be only used in older engines maintained by the service fleet. This is done by capturing the changes in physical characteristics of cracked gas turbine structures during engine operation. Monitoring the change in vibration characteristics is being proposed as an input in developing the health monitoring system. In verifying the proposed technique, static component such as flexible pipe is analytically evaluated and validated with field measurements.


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