SlideShare a Scribd company logo
DESIGN OF CHAIN DRIVES USING MATLAB
- Cyril Mathew Samuel
Introduction
Chain Drives are used to transmit power between two
rotating shafts. They are widely used in automobile and
industrial applications. This project aims to provide
solutions for the design of chain drives using MATLAB –
technical computing software.
Figure1 : Parts of a Roller Chain Drive
Programming Methodology
Display the outputs:
Pitch , Roller diameter , Width of plates, FOS ,Centre
Distance , Number of links etc
Checking if Actual Factor of Safety is greater than
Required Factor of Safety
Finding the Power rating values of ISO Chain
Numbers
Calculation of Design Power
Calculation of service factor
Defining the inputs :
Power transmitted , Speeds of sprockets , loading ,
lubrication and rating types
In this program, the user defines the preferred maximum
number of chain strands in the drive. The program finds out
the power rating of each strand and finds out if there are
design options in that particular number of chain strand.
Once this is done, it displays all the design options in that
particular strand number. If there are no design options
available, a message is displayed and the code moves onto
check the design options in the next strand.
Sample Problem
A sample problem , taken from ‘Machine Design’ by R.S
Khurmi (Example 21.1) is solved to demonstrate the working
of the program .
Design a chain drive required to transmit 15 Kw of power .
The larger sprocket runs at 350 rpm and the smaller
sprocket runs at 1000 rpm. It operates at sixteen hours a day
.Assume drop lubrication and heavy load shock conditions.
Figure 2 : Output display while defining inputs
The input values are entered as shown in Figure 2 , according
to the data given in the question. Of the several design
options obtained, the solution in the textbook problem is
taken for consideration, so as to compare it with the results
obtained from the program. It should be noted that the
values obtained from the program, match well with the
solution in the textbook problem .
Design Parameter Solution from
the textbook
Program
Results
Pitch (mm) 19.05 19.05
Roller Diameter (mm) 12.07 12.07
Width of inner plates
(mm)
11.68 11.68
Pitch diameter of
larger sprocket (mm)
436 430.6
Pitch Line velocity
(mm/s)
7960 7950
Actual FOS 32 30.6
Required FOS 11 12.9
Centre Distance(mm) 572 567.5
Length of chain (mm) 2096 2083
Table 1: Comparison of design solution obtained from the
program and the solved example .
Apart from the solutions displayed in Table 1 ,the program
also gives all other possible chain drive design options (listed
in Table 2).
With the different options available , the user can select a
suitable chain drive design according to his requirements ,
operating conditions and also considering economic
constraints. From Table 2 ,it can be seen that as the number
of chain drive strands increase or as the pitch increases
(considering the same number of strand ) , the actual factor
of safety increases .This means that the design is more safe.
However, it has to be noted that in a drive with more
number of strands, more material needs to be used for
manufacturing and hence this simultaneously increases the
cost of production .
Design
Parameters
Chain
Strand
= 1
Chain Strand
= 2
Chain Strand
= 3
Pitch (mm) 25.4 19 25.4 19 25.4
Roller Diameter
(mm)
15.88 12 15.8 12.07 15.8
Width between
plates (mm)
17.02 11.6 17.02 11.6 17.02
ISO chain
number
16 12 16 12 16
Breaking Load
(kN)
42.3 57.8 84.5 86.7 126.8
Pitch Diameter-
Larger Sprocket
(mm)
574.2 430 574.2 430 574.2
Pitch Line
Velocity (mm/s)
1060 7956 1060 7956 1060
Actual FOS 29.81 30.6 59 45.9 89.68
Required FOS 12.9 12.9 12 12.9 12.97
Centre Distance
(mm)
758 567.5 758 567.5 758
Number of links 109.4 109.3 109.4 109.3 109.3
Length of chain
(mm)
2780 2083 2780 2083 2780
Table 2 : All design options obtained from the program
Limitations
The program can only be used within a limited range of
transmission ratios ( 1-3 ) and speeds of pinion shaft ( 100
rpm - 1400 rpm) .The ISO chain number is also limited from
6B to 16B.
References
 www.google.com
 www.wikipedia.com
 ‘Machine Design’ – R.S Khurmi

More Related Content

PDF
Ws004 motors calculations-240 v dc
PDF
SMAC CB135 Series Electric Cylinder
PDF
Ws003 motors calculations-3 phase 480v induction
PDF
Determine bending moment and share force diagram of beam
PDF
Application of Artificial Intelligence Based Approach For Design Parameter Ex...
PDF
H012235661
PDF
IRJET- Segregation of Machines According to the Noise Emitted by Differen...
PPTX
22564 emd 1.11 numericals
Ws004 motors calculations-240 v dc
SMAC CB135 Series Electric Cylinder
Ws003 motors calculations-3 phase 480v induction
Determine bending moment and share force diagram of beam
Application of Artificial Intelligence Based Approach For Design Parameter Ex...
H012235661
IRJET- Segregation of Machines According to the Noise Emitted by Differen...
22564 emd 1.11 numericals

What's hot (10)

PPTX
Steel design 04 example of steel rupture for tension member
PPTX
22564 emd 1.9 numericals
PDF
Design and Fabrication of Automatic Main Stand For Two-Wheelers
PDF
USA DE MDSOLIS
PPT
Y5 Subtraction Complimentary Method (Counting Up)
PPTX
22564 emd 1.2 numericals
TXT
Fs 2
DOCX
metodo-dual
PDF
Harmonic csf lw_specsheet
PDF
Accurate Simulation of Short-Fiber-Reinforced Automotive Parts
Steel design 04 example of steel rupture for tension member
22564 emd 1.9 numericals
Design and Fabrication of Automatic Main Stand For Two-Wheelers
USA DE MDSOLIS
Y5 Subtraction Complimentary Method (Counting Up)
22564 emd 1.2 numericals
Fs 2
metodo-dual
Harmonic csf lw_specsheet
Accurate Simulation of Short-Fiber-Reinforced Automotive Parts
Ad

Viewers also liked (20)

PPT
Gears presentation
PDF
Presentation on mechanical engineering
DOCX
Design engineering report
PDF
Mechanical Design Engineering Portfolio
PPTX
DOCX
Design report
PPTX
Types of gear drives
PDF
Chain & Drives Overview
DOCX
Design engineering 1 b
PPT
Chain and belt drive
PPTX
Chain drives
PPTX
BELT TENSIONING METHODS, Chain drive introduction, Power transmitted by chain...
DOC
Report on design engineering
PPT
DESIGN OF SHAFT
PPTX
Shaft alignment
PDF
Shaft design2 Erdi Karaçal Mechanical Engineer University of Gaziantep
PPT
Epicyclic gear train
PPTX
Belt, rope and chain drives
PDF
2 chain drives
PPTX
Introduction to Engineering and Profession Ethics Lecture3-Introduction to En...
Gears presentation
Presentation on mechanical engineering
Design engineering report
Mechanical Design Engineering Portfolio
Design report
Types of gear drives
Chain & Drives Overview
Design engineering 1 b
Chain and belt drive
Chain drives
BELT TENSIONING METHODS, Chain drive introduction, Power transmitted by chain...
Report on design engineering
DESIGN OF SHAFT
Shaft alignment
Shaft design2 Erdi Karaçal Mechanical Engineer University of Gaziantep
Epicyclic gear train
Belt, rope and chain drives
2 chain drives
Introduction to Engineering and Profession Ethics Lecture3-Introduction to En...
Ad

Similar to Design of chain drive (20)

PDF
Finite element analysis of center pin and bracket of jig fixture assembly ijm...
PDF
Computer assisted compound die design a case study
PDF
Spur Gear Design by Using MATLAB Code
PPTX
Automatic Laser Inspection, Detection and Reporting System for Pipes and Tubes
PPTX
Karakuri based dolly frames unstacking system
PDF
DESIGN AND ANALYSIS OF HIGH ENTROPY ALLOY SPUR GEAR
PDF
Finite Element Analysis and Optimization of Automotive Seat Floor Mounting Br...
PDF
Computer Aided Analysis and Design of Multi-Storeyed Building using Staad Pro
PDF
IRJET - Design of a Low Power Serial- Parallel Multiplier with Low Transition...
PDF
IRJET- Design and Development of Brake Pedal and Drum for Multiutility Farm V...
PDF
Design and Finite Element Analysis of Fixture for Milling of Cummins Engine B...
PDF
Stress Analysis Of Connecting Rod For Diesel Engine With Different Materials
PDF
IRJET- Development of Mathematical Models to Predict Weld Bead Geometry of Bu...
PDF
J012647278
PDF
J012647278
PDF
Linking design and manufacturing on a PLM platform
PDF
Fe36963967
PDF
IRJET- Design and Analysis of Progressive Tool for U-Bracket of Power Met...
PDF
IRJET - Effect of Change in Location of Essential Elements of Saddle Supports
Finite element analysis of center pin and bracket of jig fixture assembly ijm...
Computer assisted compound die design a case study
Spur Gear Design by Using MATLAB Code
Automatic Laser Inspection, Detection and Reporting System for Pipes and Tubes
Karakuri based dolly frames unstacking system
DESIGN AND ANALYSIS OF HIGH ENTROPY ALLOY SPUR GEAR
Finite Element Analysis and Optimization of Automotive Seat Floor Mounting Br...
Computer Aided Analysis and Design of Multi-Storeyed Building using Staad Pro
IRJET - Design of a Low Power Serial- Parallel Multiplier with Low Transition...
IRJET- Design and Development of Brake Pedal and Drum for Multiutility Farm V...
Design and Finite Element Analysis of Fixture for Milling of Cummins Engine B...
Stress Analysis Of Connecting Rod For Diesel Engine With Different Materials
IRJET- Development of Mathematical Models to Predict Weld Bead Geometry of Bu...
J012647278
J012647278
Linking design and manufacturing on a PLM platform
Fe36963967
IRJET- Design and Analysis of Progressive Tool for U-Bracket of Power Met...
IRJET - Effect of Change in Location of Essential Elements of Saddle Supports

Design of chain drive

  • 1. DESIGN OF CHAIN DRIVES USING MATLAB - Cyril Mathew Samuel Introduction Chain Drives are used to transmit power between two rotating shafts. They are widely used in automobile and industrial applications. This project aims to provide solutions for the design of chain drives using MATLAB – technical computing software. Figure1 : Parts of a Roller Chain Drive Programming Methodology Display the outputs: Pitch , Roller diameter , Width of plates, FOS ,Centre Distance , Number of links etc Checking if Actual Factor of Safety is greater than Required Factor of Safety Finding the Power rating values of ISO Chain Numbers Calculation of Design Power Calculation of service factor Defining the inputs : Power transmitted , Speeds of sprockets , loading , lubrication and rating types In this program, the user defines the preferred maximum number of chain strands in the drive. The program finds out the power rating of each strand and finds out if there are design options in that particular number of chain strand. Once this is done, it displays all the design options in that particular strand number. If there are no design options available, a message is displayed and the code moves onto check the design options in the next strand. Sample Problem A sample problem , taken from ‘Machine Design’ by R.S Khurmi (Example 21.1) is solved to demonstrate the working of the program . Design a chain drive required to transmit 15 Kw of power . The larger sprocket runs at 350 rpm and the smaller sprocket runs at 1000 rpm. It operates at sixteen hours a day .Assume drop lubrication and heavy load shock conditions. Figure 2 : Output display while defining inputs
  • 2. The input values are entered as shown in Figure 2 , according to the data given in the question. Of the several design options obtained, the solution in the textbook problem is taken for consideration, so as to compare it with the results obtained from the program. It should be noted that the values obtained from the program, match well with the solution in the textbook problem . Design Parameter Solution from the textbook Program Results Pitch (mm) 19.05 19.05 Roller Diameter (mm) 12.07 12.07 Width of inner plates (mm) 11.68 11.68 Pitch diameter of larger sprocket (mm) 436 430.6 Pitch Line velocity (mm/s) 7960 7950 Actual FOS 32 30.6 Required FOS 11 12.9 Centre Distance(mm) 572 567.5 Length of chain (mm) 2096 2083 Table 1: Comparison of design solution obtained from the program and the solved example . Apart from the solutions displayed in Table 1 ,the program also gives all other possible chain drive design options (listed in Table 2). With the different options available , the user can select a suitable chain drive design according to his requirements , operating conditions and also considering economic constraints. From Table 2 ,it can be seen that as the number of chain drive strands increase or as the pitch increases (considering the same number of strand ) , the actual factor of safety increases .This means that the design is more safe. However, it has to be noted that in a drive with more number of strands, more material needs to be used for manufacturing and hence this simultaneously increases the cost of production . Design Parameters Chain Strand = 1 Chain Strand = 2 Chain Strand = 3 Pitch (mm) 25.4 19 25.4 19 25.4 Roller Diameter (mm) 15.88 12 15.8 12.07 15.8 Width between plates (mm) 17.02 11.6 17.02 11.6 17.02 ISO chain number 16 12 16 12 16 Breaking Load (kN) 42.3 57.8 84.5 86.7 126.8 Pitch Diameter- Larger Sprocket (mm) 574.2 430 574.2 430 574.2 Pitch Line Velocity (mm/s) 1060 7956 1060 7956 1060 Actual FOS 29.81 30.6 59 45.9 89.68 Required FOS 12.9 12.9 12 12.9 12.97 Centre Distance (mm) 758 567.5 758 567.5 758 Number of links 109.4 109.3 109.4 109.3 109.3 Length of chain (mm) 2780 2083 2780 2083 2780 Table 2 : All design options obtained from the program Limitations The program can only be used within a limited range of transmission ratios ( 1-3 ) and speeds of pinion shaft ( 100 rpm - 1400 rpm) .The ISO chain number is also limited from 6B to 16B. References  www.google.com  www.wikipedia.com  ‘Machine Design’ – R.S Khurmi