Indirect approaches to individual aircraft structural monitoring

Nowadays flight load exceedance monitoring is an important task to both: the aircraft manufacturer as well as the operator. The estimation of flight loads is required in several phases during development and operation of an aircraft. The requirements are usually different, for e.g. calculation of design loads for certification and operational loads monitoring of stress and fatigue. The ability to determine aircraft operational loads (more) precisely may reduce the time in maintenance. Being able to detect critical load exceedance events during flight or in a post-process is also an enabler for e.g. loads/fatigue monitoring at operator level. In this paper, a novel system identification method named local model networks is applied to the field of flight loads estimation and compared to approaches based on artificial neural networks as found in the literature. The presented approach tries to overcome some limitations with respect to model creation, robustness, interand extrapolation.

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“…A general overview of different publications in this field is also presented in [23]. Many different types of ANNs exist.…”

Section: Methods Descriptionsmentioning

confidence: 99%

Comparison of real-time flight loads estimation methods

2014

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“…In fact, helicopters are prone to more frequent accidents compared to fixed‐wing aircraft and also have considerably higher maintenance costs. Therefore, health and usage monitoring of helicopters is an important research area (Wallace et al , 2004). Engineering health‐monitoring systems are often based on a mathematical model of the system, which is used to simulate the effect of damage on the system behavior (Reed, 2008; Trendafoilova et al , 2009; Ganguli et al , 1998).…”

Section: Helicopter Rotor Health Monitoringmentioning

confidence: 99%

Rotorcraft research in India: recent developments

Ganguli

2010

Aircraft Eng & Aerospace Tech

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If you would like to write for this, or any other Emerald publication, then please use our Emerald for Authors service information about how to choose which publication to write for and submission guidelines are available for all. Please visit www.emeraldinsight.com/authors for more information. About Emerald www.emeraldinsight.comEmerald is a global publisher linking research and practice to the benefit of society. The company manages a portfolio of more than 290 journals and over 2,350 books and book series volumes, as well as providing an extensive range of online products and additional customer resources and services.Emerald is both COUNTER 4 and TRANSFER compliant. The organization is a partner of the Committee on Publication Ethics (COPE) and also works with Portico and the LOCKSS initiative for digital archive preservation. AbstractPurpose -The purpose of this paper is to discuss published research in rotorcraft which has taken place in India during the last ten years. The helicopter research is divided into the following parts: health monitoring, smart rotor, design optimization, control, helicopter rotor dynamics, active control of structural response (ACSR) and helicopter design and development. Aspects of health monitoring and smart rotor are discussed in detail. Further work needed and areas for international collaboration are pointed out. Design/methodology/approach -The archival journal papers on helicopter engineering published from India are obtained from databases and are studied and discussed. The contribution of the basic research to the state-of-the-art in helicopter engineering science is brought out. Findings -It is found that strong research capabilities have developed in rotor system health and usage monitoring, rotor blade design optimization, ACSR, composite rotor blades and smart rotor development. Furthermore, rotorcraft modeling and analysis aspects are highly developed with considerable manpower available and being generated in these areas. Practical implications -Two helicopter projects leading to the "advanced light helicopter" and "light combat helicopter" have been completed by Hindustan Aeronautics Ltd These helicopter programs have benefited from the basic research and also provide platforms for further basic research and deeper industry academic collaborations. The development of well-trained helicopter engineers is also attractive for international helicopter design and manufacturing companies. The basic research done needs to be further developed for practical and commercial applications. Originality/value -This is the first comprehensive research on rotorcraft research in India, an important emerging market, manufacturing and sourcing destination for the industry.

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“…Individual aircraft tracking can be achieved and the analysis of recorded flight parameters, loads, fatigue, etc. can be carried out with a closer one-by-one procedure [296].…”

Section: Structural Safetymentioning

confidence: 99%

Aeronautics and astronautics: Recent progress and future trends

Martínez‐Val

Pérez

2009

Proceedings of the Institution of Mechanical Engineers, Part C:

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Aeronautics and astronautics are two closely related disciplines, sometimes found under the joint term aerospace, that have progressed at a formidable pace during the 20th century. Their impact on society is overwhelming. For example, the aeroplane, the core of aeronautics, has been identified as one of the three major inventions of that century. On its turn, satellites have paved the way for modern globalization. Major drivers leading this progress have changed from the classical motto ‘higher, further, faster’ to the current ‘more affordable, cleaner, quieter’, but safety has always been kept the undisputed number one. The underlying key factors for progress have been and still are excellence and co-operation. Both aeronautics and astronautics are multidisciplinary in nature and, accordingly, this review summarizes relevant advances and trends in pertinent fields: aerodynamics, structures, propulsion, and so on. All these fields are still very healthy and the 21st century will witness again a new era of astonishing aerospace developments.

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Indirect approaches to individual aircraft structural monitoring

Cited by 13 publications

References 20 publications

Comparison of real-time flight loads estimation methods

Comparison of real-time flight loads estimation methods

Rotorcraft research in India: recent developments

Aeronautics and astronautics: Recent progress and future trends

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