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Parasite Drag Reduction of a Twin-Engine Light Weight Helicopter Configuration
, 2014 R. Reß, M. Grawunder, C. Breitsamter
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Failure analysis of a crankshaft of a helicopter engine
Engineering Failure Analysis, 2019Abstract A detailed analysis of a crankshaft failure belonging to a helicopter engine is presented. The main objective of this work was to analyze the characteristics of the failure and determine the root cause of the failure of the crankshaft. In order to determine the causes of the crankshaft failure, a material analysis was performed, followed by ...
V. Infante, M. Freitas, M. Fonte
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Exergetic Investigation of a Turboshaft Helicopter Engine Related to Engine Power
SAE International Journal of Aerospace, 2020<div>Turboshaft engines, one of the classifications of the helicopters, combine the core engine and fan and consume fossil fuels. Emissions, produced by the fossil fuels, cause global warming and environmental pollution, such as ecological, human health. To improve helicopter capability, energy is the first point of improvement.
Elif Koruyucu +2 more
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Helicopter Engine Connecting Rod Failures
ASM Failure Analysis Case Histories: Air and Spacecraft, 2019Abstract In a helicopter engine connecting rod, high-cycle, low-stress fatigue fractures in bolts and arms progressed about 75% across the section before the final rupture. Factors involved were insufficient specified preload, inadequate tightening during assembly, and engine overspeed.
Jivan B. Shah
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Sustainability Assessment in Piston-Prop Helicopter Engine
2016About 75% of the world’s energy requirement is provided by fossil fuels, and there are various improvement efforts in all fields to ensure the effective use of available sources, taking into consideration the gradual decrease in fossil fuels. Several approaches are used against the decrease in energy sources including the concept of sustainability ...
Yıldırım, E. +3 more
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Integrated modeling and coupling characteristics analysis of helicopter/engine/infrared suppressor
International Journal of Turbo & Jet-Engines, 2023In order to explore the influence of the infrared stealth technology on the performance of the integrated helicopter/engine system, an integrated modeling method of helicopter/engine/infrared suppressor is proposed.
Benlin Cheng +4 more
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Multispecies Flow Indirect-Noise Modeling Re-Examined with a Helicopter-Engine Application
AIAA JournalComposition noise has recently received increasing attention for its potential to contribute significantly to the indirect noise mechanism. In this study, the importance and definition of composition noise are revisited by proposing a new proper ...
Y. Gentil +3 more
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