Rules for classification and construction ii materials and. Todays vessels use a variety of highly sophisticated propulsion systems and a range of advanced shaft materials, depending on the. The e2 hawkeye is the fleets airborne early warning aircraft. My question is that i have never machined silicon bronze and i dont know if it is gummy or problematic to thread. In this context, a propeller shaft is designed for an automobile for specific power transmission. Pdf design optimization of automotive propeller shafts. Chemical composition, microstructural characterization, fractography, hardness measurements, and finite element simulation were used for the analysis. Longer shafting is available for larger boats through precision rotary forging. Conventional steel drive shafts usually have limitations of weight and low. The threeblade square pitch propeller is 152 mm 6 in diameter, composed of 316l stainless steel. Microstructural examination the microstructure of the casting grades cu1 and cu2 shall be demonstrated by determining the proportion of alpha phase.
Aqualoy stainless shafts are available in a17, a19, and a22. A propeller shaft transmits engine torque to the rear wheels and therefore needs to be strong and reliable. Mar 06, 2018 the drive cardan shaft may be a rod or tube accustomed carry movement force from the engine to the four bladed fans to cardan shaft parts supply spare flow of air to scale back the temperature of the pump and therefore the generator cardan shaft s. The aqualoy process produces a rounder, straighter, stronger shaft. These materials are sm45c alloy steel as conventional propeller shaft material, thermoplastic polyimide with 30% carbon fiber. The conventional system uses metallic shaft, has inherent limitations like heavy. Nauticalloy 4462 has a chemically controlled composition that ensures enhanced strength and corrosion resistance properties are achieved all nauticalloy produced can be supplied complete with 3rd party inspection, testing and certification. Design of propeller shaft dp since the propeller shaft is subjected to both bending moment due to propeller weight and twisting moment diameter of propeller shaft dp 25% extra then the designed by pure torsion. The common material for construction is high quality steel of grade sm45c. Design and analysis of automotive composite propeller shaft using fea. Review analysis of light vehicle propeller shaft semantic scholar. The drive shaft also called propeller shaft or prop shaft is a component of the drive train in a vehicle, with the purpose of delivering torque from the transmission to the differential, which then transmits this torque to the wheels in order to move the vehicle. The main purpose of the diving shaft or propeller shaft.
Weight reduction can be primarily achieved by the introduction of better material. Due to high specific strength and high specific modulus the advanced composite. Materials for automobiles lecture no 2 6 august 2011. Propeller boring to insure retention of inherent factory accuracy, order your propeller factorybored whenever pos sible. Experimental investigations on static and dynamic parameters of. The propeller shaft is a critical component of any motorized vessel. The shaft fractured at shoulder with evidence of torsionalbending fatigue. The main function of the propeller shaft is to turn the propeller. Material choice between 316 ss and silicon bronze for. The length of the drive shaft must also be capable.
Shaft and coupling basic interview question and answers strength of material som notes free pdf download coupling design requirement, types, design of sleeve coupling what is drive shaft, driveshaft, driving shaft, propeller shaft hollow shaft vs solid shaft which is better. When there is more than one transmission element, the propeller shaft is a kind of shafting line. The cost of the material and its processing must be weighed against the need for smaller shaft diameters. Therefore the steel propeller shaft is made in two sections connected by a. The sample material may not be removed from the propeller by thermal cutting process. Drive shaft construction can be made of steel, aluminum, or composite material hollow shaft may have cardboard liner to reduce noise has a yoke welded to each end universal joints are used at each end may have balance weights attached. Propeller shaft is an essential part in control transmission of a car. Analysis of propeller shaft for composite materials. Introduction the main purpose of the diving shaft or propeller shaft is to transmit torque from the gear box to differential gear box, it has. Failure analysis and design modification of propeller shaft of bus. An automotive propeller shaft, or drive shaft, transmits power from the engine to differential gears of rear wheeldriving vehicle.
For successful operation of compac propeller shaft bearings pdf, 115. Failure analysis of metal alloys propeller shaft used in marine has been carried out. In automobiles the drive shaft is used for the transmission of motion from the engine to the differential. The c hercules, a cargo transport aircraft, is the workhorse of naval aviation. For this purpose, at least one specimen shall be taken from each heat. This capability lets us manufacture aqualoy propeller shafting with exceptional asforged straightness up to 38.
Propeller shaft is an important component in the power transmission of an automobile. The drives shaft must also operate through constantly changing the angles between the transmission, the differential and the axels. Drive shaft assembly, composite materials, finite element analysis. In propeller shaft, mainly the failure is caused by fatigue or torque so we need material having high torsional and fatigue strength, if are using the propeller shaft in ship or boat it should have high corrosion resistance too. Propeller shaft arrangement in automobiles specifications problem description we opted to do our work on material optimization on propeller shaft of toyota quails which transmits a maximum torque of 154nm at 2400 rpm. The type of material used in the drive shaft need to be known first before stress analysis can be performed using an sys software.
Ship propeller shaft all boating and marine industry. But the drive shaft made of composite material have advantages like they have high specific modulus and strength, reduced weight, lower fuel consumption. The c2 greyhound is a fleet logistics support aircraft. Pdf in this paper six automotive propeller shafts made of different materials are designed. Propeller shaft bearing systems thordon bearings inc. Aqualoy is available in 4 different grades and is stocked in shaft sizes ranging from 34 inches to 8 inches in diameter with lengths up to 3112 feet. When bored in the field, propellers should be bored to the pilot hole, not to the hub or b lade edges. Analysis of propeller shaft for composite materials isca. Design, failure analysis and optimization of a propeller. The shaft has the bearings on the ends, and then two sheaves pinned to it, with a center sheave that slides axially, so there is not much torsion being transmitted thought it. Drive shaft, composite materials, torsional strength and buckling.
What are the materials used for following, a propeller shaft. Marine propeller shaft marine propeller shafts aqualoy and stainless steel. Find the total angle of twist between the engine and the propeller if the distance is m. Where the propeller is attached by means of a flange, the thickness of the. Material optimization of composite drive shaft assembly in. Customary steel drive shafts have restrictions of weight and low basic speed. The drive shaft must also be capable of rotating at the very fast speed required by the vehicle.
Seawater for propeller shaft lubrication in merchant ships pdf, 980. Material choice between 316 ss and silicon bronze for propeller shaft i have 1 x 10 stock in 316 ss and silicon bronze. This includes the design of a solid shaft first, and for the same torque transmission, a hollow shaft is designed, which can be a good substitute to the solid shaft, whereby the material of the shaft is reduced to a significant value. A ships propeller shaft transmits mechanical energy from the main engine to the propeller. Finite element modeling based on shell element is used in. The ultimate shear strength for the propeller shaft material is 270 mnm 2. Anns college of engineering and technology,chirala,prakasam district,andhrapradesh 523187.
Narayana1 associate professor,department of mechanical engineering,st. The aim of this work is to replace the propeller shaft of s. If strength considerations turn out to dominate over deflection, then a higher strength material should be tried, allowing the shaft sizes to be reduced until excess deflection becomes an issue. Conventional drive shaft have less specific modulus and strength, increased weight. This paper describes the critical material and processing parameters required to produce an automobile transmission shaft to the exacting standards required of. It can also be used to drive an alternator to produce electricity. Stainless steel inboard propeller shafts deep blue yacht supply. Plan 1 familiarization with automobile 2 iron carbon diagram. Propeller shaft function, types, components and requirement. A drive shaft, driveshaft, driving shaft, tailshaft australian english, propeller shaft prop shaft, or cardan shaft after girolamo cardano is a mechanical component for transmitting torque and rotation, usually used to connect other components of a drive train that cannot be connected directly because of distance or the need to allow for relative movement between them. State whether the stresses in the shaft meet this criterion. Drive shafts are usually made of solid or hollow tube of steel or aluminum. Design and optimization of automobile propeller shaft with. A shaft has to be designed to meet the stringent design requirements for automotives.
We also extended the project by including more composite materials. Over than 70% of single or twopiece differentials are made of several piece propeller shaft that result in a rather heavy drive shaft composite drive shafts were begun to be used in bulk in automotives since 1988. Propeller shaft tolerance tables aqualoy 17, 19, 22 and 22hs. Material optimization of composite drive shaft assembly in comparison with conventional steel drive shaft mr. Propeller shaft, composite materials, nx nastran, torsional buckling. This paper describes the critical material and processing parameters required to.
It m transmitting the motors power to the propeller, as well as any impact should the propeller strike an object. Material optimization and weight reduction of drive shaft. At the prop end if you have a material with high ductility it will be more likely to bend than break off like your first shaft did. Failure analysis of metal alloy propeller shafts sciencedirect.
Chapter 8 turboprop engines and propellers there are a variety of turboprop aircraft in the navy inventory. Design and analysis of propeller shaft of an automobile. In this project we are analyzing the failure of a propeller shaft for hmv heavy motor vehicle. These prop shafts are used in a wide variety of applications such as work boats, pleasure craft, naval vessels, and pumps. This rotary motion is used to run the rear wheel of bus.
Pdf design and analysis of drive shaft of an automobile. The main concept of our project is to reduce the weight of automotive drive shaft with the utilization of composite material. The known material will provide the information such as density of material, modulus of. Pdf fe analysis of hollow propeller shaft using steel and. A read is counted each time someone views a publication summary such as the title, abstract, and list of authors, clicks on a figure, or views or downloads the fulltext. Aqualoy marine propeller shafts undergo more quality controls than any competing brand.
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