ppt on shaft design
FORCES EXERTED ON SHAFTS BY MACHINE ELEMENTS Spur Gears. Determine the design of.
Pin On Design
B Solution uses an integral pinion three shaft shoulders key and keyway and sleeve.
. Shafts and Axels Shafts and Axels Shaft is a rotating member and it provides axis of rotation for gears pulley flywheels cranks sprockets. B Solution uses an integral pinion three shaft shoulders key and keyway and sleeve. Design based on strength is to ensure that stress at any location of the shaft does not exceed the material yield stress.
Find bending moments from gears pulleys or sprockets that are transmitting loads to or from other devices. Determine the forces that are exerted on the shaft both radially and axially. Shafts Definition Generally shafts are members which rotate in order to transmit power or motion.
Therefore σ 2 2 max 2 x ττ τ. Determine the rotational speed of the shaft. For larger notch radii use the values of q shear corresponding to r 016 in 4 mm.
Compare combined stresses to suitable allowable stresses. Design based on rigidity is to ensure that maximum deflection because of bending and maximum twist due to torsion of the shaft is within the allowable limits. Shaft Design Procedure Contd Draw torque diagram Determine forces on shaft Resolve components of forces in horizontal vertical plan Solve the reaction on bearing Produce SF.
Ad Download Millions of Presentations Graphic Assets Fonts Icons More. Shafts are designed on the basis of strength or rigidity or both. Design of axle shaft.
ShigleysMechanical Engineering Design Shaft Design for Stress It is NOT necessary to evaluate the stresses in a shaft at every point. Determine the power or the torque to be transmitted by the shaft. Shaft design based on strengthShaft design based on strength Maximum shear stress theory ductile mat.
Share yours for free. 7-2 a Choose a shaft configuration to support and locate the two gears and two bearings. Dry berth and afloat alignment practice pre requisites for propeller shaft sighting 1hull consolidation to a pre determined level.
A Choose a shaft configuration to support and locate the two gears and two bearings. View Design of Shafts Axles ppt from MPME 102 at IIMT Engineering College. A few potentially critical locations will suffice.
View Shaft Design PPTs online safely and virus-free. 1 August 15 2007 1 17. For details on acceptable slopes refer to FAG and SKF catalogs.
They are usually circular in cross section and that s the. Failure occurs when the maximum shear stressFailure occurs when the maximum shear stress at a point exceeds the maximum allowable shear stress for the material Thereforeshear stress for the material. Ti 1 α λ L r 1 1 5 1 0 0 0 4 4 λ λ 2 s yc α 2 λ 115 π nE n 10 for hinged end.
An axle though similar in shape to the shaft is a stationary machine element and is used to transmit bending moment only. Ad Download Millions of Presentations Graphic Assets Fonts Icons More. Shafts can sometimes be square in cross section.
1 August 15 2007 1 17. Design of axle shaft. The housing locates the bearings on their outer rings and receives.
Determine the power or the torque to be transmitted by the shaft. Shaft Design Objectives Compute forces acting on shafts from gears pulleys and sprockets. Learn new and interesting things.
Resolve the radial forces into components in perpendicular directions usually vertically and horizontally. SHAFT DESIGN Shafts Axles and Spindles A shaft is a rotating member usually of circular cross-section solid or hollow which transmits power and rotational motion. 2loading of all major weights 3keel sighting and establishment of the keel line 20 f b.
Design should consider the following Deflection Bending deflection Torsional deflection. Shaft Design Procedure Vertical shear stresses and direct normal stresses due to axial loads may also occur. The housing locates the bearings on their outer rings and receives the thrust loads.
Shaft Layout Shigleys Mechanical Engineering Design Fig. Determine torque in shafts from gears pulleys sprockets clutches and couplings. Stresses are only evaluated at critical locations Critical locations are usually On the outer surface Where the bending moment is large.
Get ideas for your own presentations. On very short shafts or on portions of shafts where no bending or torsion occurs such stresses may be dominant. Dry berth and afloat alignment practice critical.
Block stage shaft alignment practice 19 f b. Axels are non rotating member carries no torque and it is used to support rotating wheels. For machinery shafting the deflection should be no greater than 0001 inft 0075 mmm.
Recap In the previous class we have studied the designing of shafts on the basis of -- âTorsional Loadâ -- âBending Stressâ and -- âCombined Torsional and Bending Stressâ Log in Upload File. Procedure for Design of a Shaft Determine the magnitude of torque that the shaft sees at all points. 7024 9549 hp kW T NRPM NRPM.
