Search
135 articles for “Propeller”
-
Formation and Fabrication of A 3D- Printed Polymer Propeller for Improved Propulsion and Minimal Acoustic Emission: A Comparative Study for Small Unmanned Vehicles
Abstract: The current research focuses on a comparative analysis of propeller designs to identify an option that enhances thrust efficiency while minimizing acoustic noise. The study evaluates three distinct types of propellers: the traditional three-blade propeller, the Sharrow propeller, and a novel aero propeller featuring an air foil-shaped cross-section. To facilitate a hands-on analysis, these propellers were produced using 3D printing technology, specifically employing ABS filament through a Fused Deposition Modelling …
Published in Journal of Polymer & Composites · Vol. 13, Issue 2, 2025 · pp. 252–261 Read article
-
Critical Review on Design, Fabrication and Analysis of Marine Propeller
Abstract: Ships and automated underwater vehicles like submarine and torpedoes use propeller for propulsion. The significance of propellers is to develop thrust to propel the vehicle at its operational speed. The propeller geometry and design is complicated involving many controlling parameters. Propeller with canonical isotropic materials creates more vibration and noise during their operation which is undesirable in stealth point of view. The present work is aimed at the static and …
Published in Trends in Machine design · Vol. 4, Issue 2, 2017 · pp. 1–14 Read article
-
THE STUDY OF BURNING CHARACTERISTICS OF AP/HTPB/AL BASIC COMPONENTS OF A COMPOSITE PROPELLANT
Abstract: Starting the research on a solid propellant would be very much easier if the burning characteristics of a simple propellant is known. A simple propellant is a propellant made of three basic components namely oxidizer, fuel and binder without any additive substance to alter its characteristics. Unfortunately, a very limited number of references were published discussing the burning characteristics of simple propellant. This paper describes the burning characteristics of basic …
Published in Journal of Aerospace Engineering & Technology · Vol. 1, Issue 1, 2011 · pp. 21–25 Read article
-
Characterization of Thermochemical Properties and Combustion Behavior In AP/HTPB Polymer Composite Solid Propellant for Enhanced Performance
Abstract: The thermal decomposition of solid propellants containing hydroxyl-terminated polybutadiene (HTPB) binder is a complex process, driven by multiple interacting chemical and physical factors. Solid propellant combustion characteristics are profoundly influenced by the composition of the propellant, the conditions of pressure, the starting temperature, and a range of aero-thermochemical parameters. The paper explores the influence of polymeric structure in the HTPB binder on thermal decomposition characteristics of the AP/HTPB composite propellants …
Published in Journal of Polymer & Composites · Vol. 13, Issue 3, 2025 · pp. 502–511 Read article
-
Analyzing Cavitation in Marine Propeller: A Computational Approach with Consideration for Polymer Applications
Abstract: A major source of noise and blade damage in marine propellers is because of the phenomenon of hydrodynamic cavitation. The Computational Fluid Dynamics (CFD) analysis approach is employed for the prediction of the cavitating propeller’s performance characteristics under various conditions of operation with the advance coefficient (J) ranging from 0.55 to 0.91 and cavitation number (σ) in the range of 0.80 to 4.50. The numerical simulation is performed on INSEAN …
Published in Journal of Polymer & Composites · Vol. 12, Issue 8, 2024 · pp. 29–44 Read article
-
DESIGN AND MANUFACTURING OF MARINE PROPELLER
Abstract: The present work is aimed at the fabrication of propeller blade using Aluminium-24345 material. It is high corrosive resistant, light in weight and easy to maintain. A propeller has a complex geometry and requires high end modelling in its software. The solid model of propeller blade is developed in CATIA V5 R20. By using this model, propeller was manufactured using CNC machine. CNC machining is one of the rapid manufacturing …
Published in Trends in Machine design · Vol. 4, Issue 3, 2017 · pp. 26–37 Read article
-
Static Analysis of 4-Blade Marine Propeller
Abstract: Ships and underwater vehicles like submarine and torpedoes use propeller for propulsion. In general, propellers are used as propulsions and they are also used to progress significant plunge to propel the vehicle at its operational speed and RPM. Much has been said and published on the development of the marine propeller from the time of antiquity to the present age, but there is more to be done. This paper describes …
Published in Journal of Aerospace Engineering & Technology · Vol. 5, Issue 2, 2015 · pp. 8–21 Read article
-
Accuracy Improvement for Propeller Cavitation Noise Prediction Using UDF
Abstract: Recently, there has been an increase in demand for propulsion systems with higher hydrodynamic performance and lower underwater-radiated noise, as environmental issues are gaining more attention in addition to the traditional military necessity. It is important to reduce cavitation noise when designing propellers of the ships, especially for oceanographic research vessels because they use acoustic instruments and cavitation noise can interfere with their operation. It is well known that, when …
Published in Journal of Experimental & Applied Mechanics · Vol. 16, Issue 2, 2025 · pp. 18–26 Read article
-
Mathematical Modelling and Experimental Analysis of a 3D Printed PLA UAV Propeller using NACA 4412 Airfoil
Abstract: The usage of unmanned aerial vehicles (UAVs) has grown significantly because they are cost-effective and easy to availability for many applications. However, researchers have focused on the designing for various UAV propeller/rotors geometries, including their aerodynamic performance and structural examination. An elegant, designed propeller can enhance the UAV's endurance limit and its reliability. This research focuses on designing of UAV propeller and its fabrication using Polylactic acid (PLA) material using …
Published in Journal of Polymer & Composites · Vol. 14, Issue 3, 2026 · pp. 825–832 Read article
-
Hybrid Rocket Propellant Grains: A Review
Abstract: The go-to-rocket propulsion system is either solid rocket motor or liquid rocket engine, but both have their own drawbacks like solid rocket motors cannot be throttled or stopped and started again or the construction of liquid propulsion systems is quite complex, with difficulty in storage and major safety issues. A hybrid rocket propulsion system uses either fuel or oxidizer in solid form and the other in liquid and has a …
Published in Research & Reviews : Journal of Space Science & Technology · Vol. 13, Issue 3, 2024 · pp. 44–51 Read article
-
Static and Dynamic Analysis on 5-Blade Marine Propeller
Abstract: Ships and underwater vehicles like submarine and torpedoes use propeller for propulsion. In general, propellers are used as propulsions and they are also used to progress significant plunge to propel the vehicle at its operational speed and RPM. Much has been said and published on the development of the marine propeller from the time of antiquity to the present age, but there is more to be done. This paper describes …
Published in Journal of Aerospace Engineering & Technology · Vol. 8, Issue 3, 2018 · pp. 14–25 Read article
-
Solid Propellant and its Effect on the Environment
Abstract: Normal 0 false false false EN-US X-NONE X-NONE Significant advances have been made during the last decade in the field of Space propulsion; various types of solid and liquid propellants are used in the rocket motor as fuel. In this paper we will discuss about the solid rocket propellant rather than the liquid one. Solid propellants are mostly heterogeneous (composite) made up of various ingredients which improve the burn rate …
Published in Journal of Aerospace Engineering & Technology · Vol. 2, Issue 2, 2012 · pp. 9–12 Read article
-
CFD Analysis of a Bladeless Propelling Unit for the Drones
Abstract: Conventionally, unmanned aerial vehicles (UAVs) and autonomous aerial vehicles (AAVs) utilize bladed propellers to produce lift, altitude, and thrust for propulsion. Yet, these blades are susceptible to abrasion when they contact external surfaces, resulting in diminished operational efficiency over time. Our ongoing investigation introduces a pioneering approach by integrating bladeless propeller technology, drawing inspiration from Dyson’s Bladeless Fan Theory. This study seeks to address the wear-related shortcomings of conventional propeller …
Published in Recent Trends in Fluid Mechanics · Vol. 11, Issue 3, 2024 · pp. 37–46 Read article
-
Design, Description and Analysis of Innovative Leveraged Propelled Disabled Utility Chair
Abstract: This paper aims at introducing an innovative “Disabled Utility Chair” (DUC). Traditional wheelchair/tricycle for disabled prove not to be that much comfortable and efficient or dynamically efficient, which must be of prime concern in this regard. Team surveyed various rehabilitation center and asked basic problem by the user basic features such as turning radius, space for goods, comfort conditions for long sitting remain absent. In India, varying torque, speed and …
Published in Trends in Mechanical Engineering & Technology · Vol. 5, Issue 3, 2015 · pp. 15–25 Read article
-
Slope Stability At The Juncture Of Dredged Berth Pocket & Reclaimed Earth Embankment During Turbulence Caused by Rotation of Ship’s Propeller
Abstract: For accepting vessels with large drafted deepening of the berth pocket at any jetty is necessary by dredging. During berthing of ships, the bed soil particles in berth pocket gets eroded due to critical velocity, due to turbulence of the sea water in the pocket, caused by propeller’s motion and also due to eddies formed during trimming of vessel. Such disturbances in bed soil particles and the energy in the …
Published in Journal of Offshore Structure and Technology · Vol. 10, Issue 1, 2023 · pp. 35–40 Read article
-
Transforming the Landscape of Advanced Dentistry: Incorporating Intelligence Augmentation (IA) and Artificial Intelligence (AI) to Propel Progress-A Narrative Review.
Abstract: Digitization is about to transform most sectors, and it is important to comprehend its role and socio-economic consequences. One of the infected sectors is dentistry and this article genericizes AI and IA in dentistry. It analyzes the advancement of AI and IA to supersede human capabilities using a comparative analysis of these technologies with current deployment. One of the challenges is to attain sufficient data input for AI and the …
Published in Research and Reviews: A Journal of Dentistry · Vol. 16, Issue 2, 2025 · pp. 23–29 Read article
-
Simulation of Propeller Shaft for Composite Material
Abstract: Composites are today widely used to design the automobile components as they have outstanding specific stiffness and strength properties. Weight reduction can be primarily achieved by the introduction of better material. The conventional system uses metallic shaft, has inherent limitations like heavy weight, corrosion, flexibility problems, vibrations, which magnifies with increase in shaft diameter. Advanced composite materials offer the potential to improve propulsion shafting, by reducing weight, bearing loads, alignment …
Published in Current Trends in Signal Processing · Vol. 10, Issue 3, 2020 · pp. 16–31 Read article
-
Review of Application of Ceramic in High Temperature Environment
Abstract: Normal 0 false false false EN-US X-NONE X-NONE Ceramic become one of the potential materials that provide lots of advantages compare to metal. Generally it can withstand very high temperature without melting or decomposing which is good for thermal insulation. Ceramic materials are hard, brittle, and strong in compression, weak in shearing and tension. For decades, ceramic has been applied in high temperature environments such as in heat engine, turbine, …
Published in Journal of Aerospace Engineering & Technology · Vol. 1, Issue 2, 2011 · pp. 40–46 Read article
-
Analytical Approach to Determine Basic Dimension of Simplified Rocket Engine
Abstract: As any common Rocket Engine liquid rocket engine, the following Rocket Engine uses liquid Oxygen and Gasoline as propellants. Inside the combustion chamber the liquid Oxygen reacts chemically with gasoline continuously once spark is given to incite reaction that produces hot gases which accelerated and ejected at high velocity through a nozzle. The thrust developed by Engine is transferred to the structure and propel the whole rocket. Since Engine is …
Published in Research & Reviews : Journal of Space Science & Technology · Vol. 3, Issue 3, 2014 · pp. 1–9 Read article
-
Revolutionizing Education: Harnessing The Power of AI for Unparalleled Student Learning Advancements
Abstract: In recent years, advances in AI technologies have opened new possibilities for revolutionizing the education landscape. This research work delves into the potential of AI to revolutionize education and propel student learning to unprecedented heights. The study explores the application of AI in various educational contexts and its impact on personalized learning, instructional methodologies, and overall educational outcomes. The materials used in the research encompass academic articles, case studies, and …
Published in Current Trends in Information Technology · Vol. 14, Issue 1, 2024 · pp. 18–25 Read article