Design and analysis of composite drive shaft for rear. 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. The other classification societies use the same formula. Design and construction of mini hydropower plant with propeller turbine, pp. Autmobile propeller shaft design calculation part1 mechguru. Frictional resistance calculations on a ship the propeller with blade angle 50 shown less. Design, failure analysis and optimization of a propeller shaft for heavy duty vehicle. Volvo penta sales application engineer for size guidance and speed calculations. Pdf in this paper six automotive propeller shafts made of different materials are designed. 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. This is widely used for general purpose transmission shaft. 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. Introduction the main propulsion shaft line is the essential part of a modern ship propulsion system, exposed to various conditions throughout the ships lifetime.
Maximum shaft torque and turbine thrust calculations. The propeller software calculator determine the torque and thrust performances of of the propeller, but also the size and design to the blades of the rotor, for optimum effectiveness heliciel is a software calculator designing propellers and wings for technicians, students and designers, wishing to calculate and realize their propellers or. Pdf design optimization of automotive propeller shafts. Shaft design introduction standard diameters of shafts torsion. Compare combined stresses to suitable allowable stresses. A pair of short drive shafts is acting on a shaft used to calculate the stress analysis by. In this paper six automotive propeller shafts made of different materials are designed. Likewise, the amount of thrust a propeller can produce is a product of analysis and calculation.
The fundamental approach is straightforward, design for power torque and speed, then shaft loads, and finally mixer dynamics. Seawater lubricated propeller shaft bearings pdf, 2. The design of shafts in some cases, such as those for turbopumps, is dictated by shaft. As with all other types of machine elements, it is important to understand the fundamental operating principles of different bearings in order to select the right bearing for the intended application. Pdf design, failure analysis and optimization of a propeller shaft. As the length and outer radius of the drive shafts in automotive applications are limited due to spacing, the design. Determine torque in shafts from gears, pulleys, sprockets, clutches, and couplings. Design calculation selected propeller diameter with adequate. It provides the axis of rotation, or oscillation, of elements such as gears, pulleys. Modifications of basic propeller geometries into water jet propulsors and alternate style thrusters on underwater vehicles has not significantly changed how we determine and analyze propeller performance. Calculation of torsional vibrations shall be performed in an early phase of designing a ship propulsion system, immediately after defining the ship propeller, selection of the main propulsion engine, eventual reduction gearbox and dimensioning of each particular shaft cross section. Shaft power is the power transmitted through the shaft to the propeller. Dnvglcg0038 calculation of shafts in marine applications. Kiran a, jagtap1 pg scholar, me automotive engineering.
The overall objective of this paper is to design and analyse a composite drive shaft for power transmission applications. D the propeller is also tested at zero ship speed bollard pull and it is found that the engine limits the torque to 50,000 lbf ft. A drive shaft, also known as a propeller shaft or cardan shaft, it is a mechanical part that transmits the torque generated by a vehicles engine into usable motive force to propel the vehicle. You only need a few minutes to master the heliciel desired function.
However, the naval architect must still determine the amount of power bhp or shp actually required to propel the ship through the water. These values were to be the driving constraint on the turbine testing apparatus design. Bemt method is used to calculate the propeller shaft. Mechanics and machine design, equations and calculators.
To investigate the existing design of automotiveautomobile propeller shafts. Torque in shaft the torque in a shaft is responsible for rotating the driveshaft with respect to its axis. Calculation of shafts according to din 743 mdesign shaft. Pdf design and analysis of drive shaft of an automobile. An efficient design of a composite drive shaft could be achieved by selecting the proper variables, which can be identified for safe structure against failure and to meet the performance requirements.
Pdf numerical calculations of propeller shaft loads on azimuth. For geared diesel engines medium or highspeed engines. Critical speed calculation frequency of the propeller assembly should be more critical speed, rpm 30 x sqrt g than 1. No detailed criteria for stress calculations are specified. To check the design of propeller shaft mathematically with a conventional material. Simulated annealing procedure simulates the process of slow cooling of molten metal to achieve. Local yield will normally not be a decisive criterion for marine shafts. On drives without an internally threaded propeller shaft, use the tab. Your propeller can be achieved by prototyping with igs 3d format or with 2d drawings of blade profiles.
Shaft design material, types, how to design shaft introduction to the shaft. The maximum torque produced by the test turbines as well as the maximum thrust generated was calculated. To check also design of propeller shaft mathematically with composite material. Design and analysis of drive shaft for heavy duty truck. The criterion for this load case shall not be perceived as a design requirement versus static fracture or permanent distortion. Here is the calculation of propeller shafts according to the rules of bureau veritas. Longer shafting is available for larger boats through precision rotary forging. 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. Calculation of output power generation from hydro turbine the output power generation from the hydro turbine. Allowing you to solve more complex shafts with more loads, bearings and stress concentrations. Highspeed shafts must be carefully checked for static and dynamic unbalance and for firstand secondorder critical speeds. Highspeed shafts require not only higher shaft stiffness but also stiff bearing supports, machine housings, etc. At first a design scheme lay out is drawn in which the shape of the part being. Shaft horsepower and brake horsepower are quantities that are purchased from the engine manufacturer.
For successful operation of compac propeller shaft bearings pdf. 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. A propeller shaft, drive shaft, driveshaft, driving shaft or cardan shaft is used for transmitting torque mainly in automobiles and in ships. Design specification of the motor is then determined by. Shaft design objectives compute forces acting on shafts from gears, pulleys, and sprockets. Propeller shaft and propeller diameter boat design net. The following example will be taken as a sample drive shaft design problem throughout this series of article. Finite element modeling based on shell element is used in the eigenvalue analysis. This capability lets us manufacture aqualoy propeller shafting with exceptional asforged straightness up to 38. Design, failure analysis and optimization of a propeller shaft for hmv. When bored in the field, propellers should be bored to the pilot hole, not to the hub or b lade edges. Find bending moments from gears, pulleys, or sprockets that are transmitting loads to or from other devices.
Export single member analysis reports in an easy and professional format to pass on to your client or fellow engineer. An automotive propeller shaft, or drive shaft, transmits power from the engine to differential gears of rear wheeldriving vehicle. Design, failure analysis and optimization of a propeller. Physically, it is tubular in design, with an outside and inside diameter, which spins at a.
Specifics of shafting alignmentfor ships in service. Remember to save your file after editing these details. This article will discuss the overview of the automobile propeller shaft design calculation. To download the thordon bearing sizing calculation program version 2017. The reader is referred to the specialised literature on this subject, for.
Propeller boring to insure retention of inherent factory accuracy, order your propeller factorybored whenever pos sible. For dieseldriven ships, the shaft power will be equal to the brake power for directconnect engines generally the lowspeed diesel engines. Boat design net does not necessarily endorse nor share the view of each individual post. Shaft weights, buckling torque and dynamic performance for different design alternatives, have been. D diameter of intermediate shafting in millimetres h total maximum continuous brake power transmitted by the shaft in kw r revolutions per minute of the intermediate shaft at continuous rating s tensile strength of the intermediate shaft material in megapascals p diameter of propeller in mm k 0. Autmobile propeller shaft design calculation part2. Design of propeller shaft flanges thickness of flange 0.
Therefore, in order to arrive at a solution that is as optimal as possible, some general. To download the thordon bearing sizing calculation program version 2017, release 10, a user registration is required. The seathigor has evolved from a design first tested in 2003 and improved during. Shaft stress calculations shaft 1 diameter38 material. Mechanical agitator power requirements for liquid batches. H, hdyn m surge pressure, dynamic pressure appeared during emergency stop of hydro turbine. The work carried out in this paper will enable the marine companies to cater the varying demands of their customers in shorter time and with higher accuracy. The drive shaft transmits torque from the gearbox to the axle and while doing so it develops stress due to the torque called as torsional stress. Such calculations shall be carried out according to sound engineering practice. A shaft is a rotating member, usually of circular cross section, used to transmit power or motion. To perform fem analysis with conventional as well as composite materials.
213 162 161 1270 198 442 829 399 1392 92 335 1559 1376 1430 1157 375 1200 636 333 845 1379 1139 896 883 55 202 786 1019 242 20