Assumes a safe shear stress of 560 kgcm2 for the material of shaft. This rotary motion is used to run the rear wheel of. Review analysis of light vehicle propeller shaft semantic scholar. The thrust bearing, which absorbs propeller thrust, is located around the shaft and transmits the thrust to the nose section housing. Propeller shaft is an essential part in control transmission of a car. The variation in the length of rear propeller shaft is allowed using a splined shaft 1.
Defining this basis is an extremely important matter even for the controllable pitch propellers, since in this latter case the design helical. 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. Home up aqualoy 17 propeller shaft aqualoy 19 propeller shaft aqualoy 22 and 22 hs propeller shaft 316 stainless steel propeller shaft 174 stainless steel propeller shaft nitronic 50 stainless steel propeller shaft propeller shaft tolerance tables how to size a propeller shaft propeller shaft bearing. Propeller design and propulsion concepts for ship operation. Find bending moments from gears, pulleys, or sprockets that are transmitting loads to or from other devices. Shaft design objectives compute forces acting on shafts from gears, pulleys, and sprockets. Js carlton, in marine propellers and propulsion second edition, 2007. It is possible to achieve design of composite drive shaft with less weight to. The tight interference fit between the rubber lip and the propeller shaft ensures continuous contact and creates a seal. Pdf on aug 25, 2016, muni kishore and others published design and analysis of drive shaft of an automobile find, read and cite all the research you need on researchgate. The design of the propeller shaft is first theoretically designed for steel, carbon epoxy and glassepoxy composite material for its safe dimensions.
Shaft sizing stress analysis in design it is usually possible to locate the critical areas, size these to meet the strength requirements, and then size the rest of the shaft to meet the requirements of the shaftsupported elements. Drive shaft propeller shaft is a mechanical part of. May 06, 2009 boat design net does not necessarily endorse nor share the view of each individual post. Propeller shaft or a cardan shaft parts 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 relati. When bored in the field, propellers should be bored to the pilot hole, not to the hub or b lade edges. Determine torque in shafts from gears, pulleys, sprockets, clutches, and couplings. Design stresses in shafts august 15, 2007 23 find the torsion in the shaft. Design and analysis of automotive composite propeller shaft using fea. Pdf design and analysis of drive shaft of an automobile. Compare combined stresses to suitable allowable stresses. The type of material used in the drive shaft need to be.
Propeller efficiency increase with increasing diameter and fuel consumption decrease. Finite element modeling based on shell element is used in. The drive shaft likewise called propeller shaft or prop shaft is a part of the drive train in a vehicle, with the reason for conveying torque from the transmission to the differential, which at that point transmits this torque to the wheels so as to move the vehicle. Shaft imperfections will damage lip seal, result in leakage. 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. The transfer and modification system of vehicles is called as power. Marine propeller shaft and associated components 2. A process for the design and manufacture of propellers for. An automotive propeller shaft, or drive shaft, transmits power from the engine to differential gears of rear wheeldriving vehicle. A shaft has to be designed to meet the stringent design requirements for automotives. Pdf in this paper six automotive propeller shafts made of different materials are designed. If the bend exceeds the standard dimension or the propeller shaft indicates cracks over the tubing or on yoke weld seams, replace the propeller shaft.
Tapered propeller shafts are common on older and smaller engines. The power transmission system is the system which causes movement of vehicles by transferring the torque produced by the engines to the wheels after some modifications. To perform fem analysis with conventional as well as composite materials. The propeller shaft of highoutput radial engines is generally splined. Pdf design, failure analysis and optimization of a.
The design of the propeller shaft is first theoretically designed for steel, carbonepoxy and glassepoxy composite material for its safe dimensions. Propeller shaft bearing systems thordon bearings inc. This standardization is an attempt to clearly define the complex nature of propeller geometry and thus foster efficient, knowledgeable communication. So diameter of propeller should be as large as possible so that maximum amount of hull wake can be used. If the propeller shafts are inclined in any significant way, this gives rise to a cyclic variation in the advance angle of the flow entering the propeller. Polymer composites are today widely used to design the automobile components in view of their outstanding specific stiffness and strength properties.
Longterm recordings of operation parameters such as pitch setting, propeller revolutions, speed and rudder angle on board of a ship are presented to give an example on a realistic operation profile and its impact on the propeller design. The re assembling of the joint is no more difficult then disassembling. When the ships machinery is not located fully aft it is necessary to enclose the propeller shaft or shafts in a watertight tunnel between the aft end of the machinery space and the aft peak bulkhead. To check also design of propeller shaft mathematically with composite material. Design, failure analysis and optimization of a propeller. In this project we are analyzing the failure of a propeller shaft for hmv heavy motor vehicle.
To check the design of propeller shaft mathematically with a conventional material. Pdf design optimization of automotive propeller shafts. Shaft is supported in selfaligning ball bearings and gears are both 10 pitch, 40 tooth, 20 spur gears. The overall objective of this paper is to design and analyse a composite drive shaft for power transmission applications.
In order for the lip seal to operate properly, the propeller shaft must be very smooth. Shaft shown drives a gear set that is transmitting 5 hp at 1750 rpm. This objective was met by creating a computer program to design a propeller that meets userdefined aircraft performance requirements within the limitations of the motor, material, and manufacturing methods. Mechanical design of a contrarotating propeller assembly for. Hub the hub of a propeller is the solid center disk that mates with the propeller shaft and to which the blades are attached.
Project report on analysis of propeller shaft axle transmission. The use of additive manufacturing 3d printing in making. This document provides standard definitions for marine screw propeller geometry terminology and associated characteristic descriptions. Propeller shaft is used to transfer rotary motion to the differential by using constant mesh synchromesh gear box. Failure analysis and design modification of propeller shaft of bus. Design and analysis of propeller shaft of an automobile. Thordons compac tailshaft bearings went on to enjoy a 26year wearlife run in the halifaxs abrackets, three times the life of thordons closest. While designing a marine propeller shaft one also has to design for for couplings, coupling. Propeller boring to insure retention of inherent factory accuracy, order your propeller factorybored whenever pos sible. Substituting low alloy steel for conventional metallic structures has. In automobiles the drive shaft is used for the transmission of motion from the engine to the differential.
Design optimization and analysis of propeller shaft ijeter. The torque transmission capacity of the propeller shaft t 59nm the shaft needs to withstand torsional buckling t b such that t b t the minimum bending natural frequency of the shaft f nbmin 80hz outside radius of the propeller shaft r o 25. This paper represents the available literature of failure analysis of a propeller shaft mounting bracket and a nalyzes the premature. Design and analysis of drive shaft for heavy duty truck. Customary steel drive shafts have restrictions of weight and low basic speed. For a given ship speed,if diameter of the propeller increases,frequency of revolution decreases. The term propeller design basis refers to the power absorbed, shaft rotational speed, and ship speed that are chosen to act as the basis for the design of the principal propeller geometric features. The overall objective of this paper is to design and analyse a drive shaft for power transmission. This protects the shaft from the cargo and provides a. When making potentially dangerous or financial decisions, always employ and consult appropriate professionals. Design, failure analysis and optimization of a propeller shaft for hmv. To properly choose a propeller we must first understand some of the basic nomenclature used to describe propeller geometry. Propeller shaft propeller module 17 propeller pdf cj propeller balancing easa module 17 a propeller cj propeller balancing using the honeywell vxp shaft design pdf pto shaft bearings elevator shaft runner shaft clearance 62877 brake shaft runner and shaft fit tolerances crank shaft motor assembly briggs 5hp horizontal shaft engine. The movement of vehicles can be provided by transferring the torque produced by engines to wheels after some modification.
Project report on analysis of propeller shaft free download as word doc. Propeller shaft failure is one of the major problems facing for msrtc workshop supervisors and engineers. Thordons revolutionary compac propeller shaft bearing design allowed for hydrodynamic operation at low shaft speeds and a low acoustic signature, passing sea trials very successfully. Shaft design pdf pto shaft bearings elevator shaft propeller shaft runner and shaft fit tolerances runner shaft clearance 62877 brake shaft crank shaft motor assembly briggs 5hp horizontal shaft engine craftsman weedwacker drive shaft t200d two shaft gas turbine unit elect 2011 ford f150 lariat cv shaft guidelines on safety of lift shaft works briggs and stratton horizontal shaft castiron. In case of two or multi stage propeller shaft length of the rear propeller shaft change in length. Design and optimization of automobile propeller shaft with. Shafting or design of shafts, concerns basically with the str ong desireformal decision about some things of the shaft dimensions to enable it survive the different. To investigate the existing design of automotiveautomobile propeller shafts. These materials are sm45c alloy steel as conventional propeller shaft material, thermoplastic polyimide with 30% carbon fiber. Seawater for propeller shaft lubrication in merchant ships pdf, 980. Marine propeller shaft dimensions sae specification j755 home up aqualoy 17 propeller shaft aqualoy 19 propeller shaft aqualoy 22 and 22 hs propeller shaft. Drive shaft propeller shaft is a mechanical part of transmission system which is used to transfer the power from engine to the wheel. A project was undertaken to design and build a contrarotating propeller assembly for a small underwater remotely operated vehicle rov, with the intent of commissioning a production run at a later time. The construction of the relevant load diagram lines is described in detail by means of several examples.