Idea Transcript
International Journal of Scientific Research and Review
ISSN NO: 2279-543X
PROPELLER SHAFT DESIGN AND ANALYSIS BY USING COMPOSITE MATERIAL Srinivasa Rao A1, Ch.Lakshmi Poornima2, K.Sunil Ratna Kumar3, B.V Subrahmanyam4 1,2,3,4
1,2,3,4
Department of Mechanical Engineering, SIR C.R.Reddy College of Engineering, Eluru, Andhra Pradesh, India.
Abstract: Propeller shaft is an essential part in control transmission of a car. Customary steel drive shafts have restrictions of weight and low basic speed. To get the greatest proficiency for control transmission, weight lessening of the drive shaft is generally imperative. This work manages the substitution of ordinary two-piece steel drive shafts with a solitary piece eglass/epoxy, high quality Kevlar epoxy and high modulus aluminum T6-6063 composite drive shaft for a car application. The fundamental idea of our task is to diminish the heaviness of car drive shaft with the use of composite material. In our undertaking shaft coupling gathering need to transmit torque 15000 Nm at 30 rpm. As the car drive shaft is an essential part of vehicle. The displaying of the drive shaft gathering was finished utilizing CATIAV5 programming. A pole must be intended to meet the stringent outline necessities for auto thought processes. In vehicles the drive shaft is utilized for the transmission of movement from the motor to the differential. In exhibit work an endeavor has been to appraise shear stresses, stresses and strains under subjected loads and regular frequencies utilizing Ansys programming. Keywords: Propeller shaft, composite material, weight lessening, CATIA V5, ANSYS
INTRODUCTION
A propeller shaft is a mechanical segment for transmitting torque and movement, typically used to associate different parts of a drive prepare that can't be associated specifically on account of separation or the need to consider relative development between them. In the get together the yield torque required is in the range 5000Nm-25000Nm and speed prerequisite is in the range 24-40rpm in light of the fact that, rotational pumps requires to pump very thick liquid, so it must be worked at lessened speed on the grounds that, at higher speed the fluid can't stream into the packaging sufficiently quick to fill it. To defeat this issue we will outline propeller shaft. A transmission shaft supporting a rigging in a speed reducer, the pole is constantly ventured with greatest distance across in the center segment. A drive shaft, driving shaft, propeller shaft (prop shaft), or Cardan shaft is a mechanical segment for transmitting torque and turn, typically used to interface different parts of a drive prepare that can't be associated specifically in view of separation or the need to take into account relative development between them. As torque bearers, drive shafts are liable to torsion and shear pressure, identical to the contrast between the information torque and the heap. They should along these lines be sufficiently solid to hold up under the pressure, while maintaining a strategic distance from an excessive amount of extra weight as that would thus build their latency. To take into account varieties in the arrangement and separation between the driving and driven parts, drive shafts as often as possible fuse at least one general joints, jaw couplings, or cloth joints, and at times a splined joint or kaleidoscopic joint PROCEDURE: Displaying and investigation of 3-Dimensional models of the drive shaft were done utilizing Catia and Solid words and examination is done utilizing Ansys programming auxiliary examination of composite drive shaft and steel drive shaft are completed. Study of cause of failures in drive shaft Selection of composite material Preparation of CAD model Analysis the CAD model with existing material with Ansys Analysis of drive shaft by using different composite materials The results are compared
Volume 7, Issue 1, 2018
211
http://dynamicpublisher.org/
International Journal of Scientific Research and Review
ISSN NO: 2279-543X
PROBLEM DESCRIPTION Stainless steel was essentially utilized in light of its high quality. Be that as it may, this stainless steel shaft has less particular quality and less particular modulus. Stainless steel has less damping limit. Due to its higher thickness of particles of stainless steel, its weight is high. As a result of increment in weight fuel utilization will in increment, the impact of inactivity will be more. As a result of increment in weight of the propeller shaft we are supplanting the stainless steel with the composite materials, which are less weight when contrasted with that of stainless steel. The cost of composite materials is less when contrasted with that of stainless steel. It the gathering the yield torque required is in the range 5000Nm-25000Nm and speed prerequisite is in the range 24-40rpm in light of the fact that, rotational pumps requires to pump exceptionally viscous fluid, so it must be worked at diminished speed on the grounds that, at higher speed the fluid can't stream into the packaging sufficiently quick to fill it. At this condition we utilized customary couplings then it comes up short. To conquer this issue we will outline propeller shaft. Torque is the inclination of a power to cause or change rotational movement of a body. It is the result of power and opposite separation. On account of high torque and low speed shaft and coupling get together is falls flat. To transmit torque from engine to pump PSP Pumps Pvt. Ltd. Utilize diverse extras. Analytical design calculation: Physical properties: Density= 7600 kg/m3, Coefficient of thermal expansion= 11.6 × 10-6 per o c, Modulus of elasticity= 207000 N/mm2, Hardness= 180 BHN, Yield stress= 590 N/mm2, Poisson’s ratio= 0.295 Design of Solid Shaft: Speed(N)=30 rpm Torque(Mt)=15000000 Nmm Yield Stress(Syt)=490 N/mm2 Max Shear Stress(߬ max )=158 Mpa Mt=ߨ/16×߬ d3 15000×103 = ߨ /16×158 d3 d =137.44 mm
Figure: 2D and 3D model of hollow shaft
Volume 7, Issue 1, 2018
212
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International Journal of Scientific Research and Review
ISSN NO: 2279-543X
Pm=permissible pressure on spline=6.5 N/mm2 Mt=15000000 Nmm do =119.1461 mm Design of Universal Coupling: Torque(Mt)=15000000 N-mm Yield Stress(Syt)=490 N/mm2 Factor of safety(fs)=1.5 Ssy=0.577×Syt
Figure: 2D and 3D model of cross of universal coupling
Ssy =282.73 N/mm2 τ = Ssy/fs=188.41 N/mm2 D=diameter of shaft=100mm dp =diameter of pin Mt=2×(3.14/4)×dp²×τ×D dp = 22.76009 mm Inner cage of needle bearing:
Figure: 2D and 3D model of Inner cage of needle bearing
Volume 7, Issue 1, 2018
213
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International Journal of Scientific Research and Review
ISSN NO: 2279-543X
Design of Flanges: Dia. Of solid shaft=D=100mm Outer dia. Of hub=dh=2D=200 mm, Length of hub=lh=1.5D=150 mm PCD of bolt=D=3D=300 mm Thickness of flange=t=0.5D=50 mm Thickness of protecting rim=t1=0.25D=25 mm Dia. Of spigot and recess=dr=1.5D=150 mm Outer dia. Of flange=Do=(4d+2t1)=450 mm
Figure: 2D and 3D model of flange
FOR FLANGE: Mt=15000000 Nmm Syt=490 N/mm2 fs=1.5 Ssy=0.577 × Syt=282.73 N/mm2 τ=Ssy/fs=188.49 N/mm2 Diameter of Bolt: N=no. of bolts N=6 for 100