This presentation contains basic idea regarding spur gear and provides the best equations for designing of spur gear. One can Easily understand all the parameters required to design a Spur Gear
This presentation briefly tells about the classification of Gears. It includes information about spur, helical, bevel, herringbone, rack and pinion, internal and external gears.
,
diploma mechanical engineering
,
mechanical engineering
,
machine design
,
design of machine elements
,
knuckle joint
,
failures of knuckle joint under different streses
,
fork end
,
single eye end
,
knuckle pin
This presentation contains basic idea regarding spur gear and provides the best equations for designing of spur gear. One can Easily understand all the parameters required to design a Spur Gear
This presentation briefly tells about the classification of Gears. It includes information about spur, helical, bevel, herringbone, rack and pinion, internal and external gears.
,
diploma mechanical engineering
,
mechanical engineering
,
machine design
,
design of machine elements
,
knuckle joint
,
failures of knuckle joint under different streses
,
fork end
,
single eye end
,
knuckle pin
Unit 6- spur gears, Kinematics of machines of VTU Syllabus prepared by Hareesha N Gowda, Asst. Prof, Dayananda Sagar College of Engg, Blore. Please write to hareeshang@gmail.com for suggestions and criticisms.
Unit 7-gear trains, Kinematics of machines of VTU Syllabus prepared by Hareesha N Gowda, Asst. Prof, Dayananda Sagar College of Engg, Blore. Please write to hareeshang@gmail.com for suggestions and criticisms.
Basic types of screw fasteners, Bolts of uniform
strength, I.S.O. Metric screw threads, Bolts under
tension, eccentrically loaded bolted joint in shear,
Eccentric load perpendicular and parallel to axis of
bolt, Eccentric load on circular base, design of Turn
Buckle.
Unit 6- spur gears, Kinematics of machines of VTU Syllabus prepared by Hareesha N Gowda, Asst. Prof, Dayananda Sagar College of Engg, Blore. Please write to hareeshang@gmail.com for suggestions and criticisms.
Unit 7-gear trains, Kinematics of machines of VTU Syllabus prepared by Hareesha N Gowda, Asst. Prof, Dayananda Sagar College of Engg, Blore. Please write to hareeshang@gmail.com for suggestions and criticisms.
Basic types of screw fasteners, Bolts of uniform
strength, I.S.O. Metric screw threads, Bolts under
tension, eccentrically loaded bolted joint in shear,
Eccentric load perpendicular and parallel to axis of
bolt, Eccentric load on circular base, design of Turn
Buckle.
Final project report on grocery store management system..pdfKamal Acharya
In today’s fast-changing business environment, it’s extremely important to be able to respond to client needs in the most effective and timely manner. If your customers wish to see your business online and have instant access to your products or services.
Online Grocery Store is an e-commerce website, which retails various grocery products. This project allows viewing various products available enables registered users to purchase desired products instantly using Paytm, UPI payment processor (Instant Pay) and also can place order by using Cash on Delivery (Pay Later) option. This project provides an easy access to Administrators and Managers to view orders placed using Pay Later and Instant Pay options.
In order to develop an e-commerce website, a number of Technologies must be studied and understood. These include multi-tiered architecture, server and client-side scripting techniques, implementation technologies, programming language (such as PHP, HTML, CSS, JavaScript) and MySQL relational databases. This is a project with the objective to develop a basic website where a consumer is provided with a shopping cart website and also to know about the technologies used to develop such a website.
This document will discuss each of the underlying technologies to create and implement an e- commerce website.
Harnessing WebAssembly for Real-time Stateless Streaming PipelinesChristina Lin
Traditionally, dealing with real-time data pipelines has involved significant overhead, even for straightforward tasks like data transformation or masking. However, in this talk, we’ll venture into the dynamic realm of WebAssembly (WASM) and discover how it can revolutionize the creation of stateless streaming pipelines within a Kafka (Redpanda) broker. These pipelines are adept at managing low-latency, high-data-volume scenarios.
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Sachpazis:Terzaghi Bearing Capacity Estimation in simple terms with Calculati...Dr.Costas Sachpazis
Terzaghi's soil bearing capacity theory, developed by Karl Terzaghi, is a fundamental principle in geotechnical engineering used to determine the bearing capacity of shallow foundations. This theory provides a method to calculate the ultimate bearing capacity of soil, which is the maximum load per unit area that the soil can support without undergoing shear failure. The Calculation HTML Code included.
The Internet of Things (IoT) is a revolutionary concept that connects everyday objects and devices to the internet, enabling them to communicate, collect, and exchange data. Imagine a world where your refrigerator notifies you when you’re running low on groceries, or streetlights adjust their brightness based on traffic patterns – that’s the power of IoT. In essence, IoT transforms ordinary objects into smart, interconnected devices, creating a network of endless possibilities.
Here is a blog on the role of electrical and electronics engineers in IOT. Let's dig in!!!!
For more such content visit: https://nttftrg.com/
Welcome to WIPAC Monthly the magazine brought to you by the LinkedIn Group Water Industry Process Automation & Control.
In this month's edition, along with this month's industry news to celebrate the 13 years since the group was created we have articles including
A case study of the used of Advanced Process Control at the Wastewater Treatment works at Lleida in Spain
A look back on an article on smart wastewater networks in order to see how the industry has measured up in the interim around the adoption of Digital Transformation in the Water Industry.
3. Transmitting Shafts
Line shaft :-
It is use to transmit the power to several
machine.
Stub shaft :-
When shaft is an integral part of the
machine or engine is called stub shaft.
Counter shaft :-
A shaft that connect to prime mover to
line of machine is called counter shaft.
Based on Application
4. Machine Shaft :-
When shaft is an integral part of the
machine or engine is called machine shaft.
Spindle shaft :-
A short hollow shaft having
application of transmitting the power to tool
or a machine is called spindle shaft.
5. Based on Construction
Rigid shaft :-
It is a shaft which cannot be bend or
deformed out of shape during transmission of
rotary motion between two object or
machine.
Flexible shaft:-
It is a shaft which is partially
deformed in a manner not to affect the
transmission of motion is known as flexible
shaft.
6. Difference b/w shaft , spindle, axle
Sr No. Shafts Spindle Axle
1 Shaft is a rotating
member.
Spindle is a rotating
member.
Axel is a non-
rotating member
2 The purpose of shaft is to
transmit the torque and
to support the
transmission elements .
The spindle is a short
rotating shaft which is an
integral part of the
machine.
The purpose of an
axel is only to
support the
transmitting
elements .
3 Shaft is subjected to
torque , bending moment
or axial force
Spindle is subjected to
bending moment and / or
axial force
Axle is subjected to
bending moment
and / or axial force
4 Example :- Line shaft ,
counter shaft , spindle ,
crankshaft etc.
Example :- Lathe machine
spindle , drilling machine
spindle, milling machine
spindle etc.
Example:- Front
axle car , wheel axle
of motorcycle etc.
7. Design of shaft based on bending moment
for solid shaft
so,
And,
9. EXAMPLE:-Find the diameter of solid shaft to transmitte 25
kw at 225 r.p.m the allowable shear stress is equal to 50 mpa.
If we used hollow shaft in case of solid shaft then find the
inside & outside diameter of the shaft when the ratio of the
inside to outside diameter is equal to 3:4.
ANSWER:-
Given data
d=?
P=25kw
N=225 r.p.m
τ=50 mpa
10.
11. DESIGN OF SHAFT BASED ON ASME
CODE
In most of the case shafts are not under constant Torque &
Bending.
12.
13. Example .
A mild steel shaft transmits 20 kW at 200 rpm.
It carries a central load of 900N and is simply
supported between the bearings 2.5 m
apart.
Determine the size of the shaft,
If the allowable shear stress is 42 MPa and the maximum tensile or
compressive stress is
not to exceed 56 MPa.
What size of the shaft will be required,
if it is subjected to gradually applied loads.
DATA:
13
14. maximum bending moment of a
simply supported shaft carrying a
central load,
Putting values in equation eq: 1
………… EQ: 1
14
15. We know that the equivalent bending moment,
………… eq: 2
Putting values in equation eq: 2
Taking the larger of the two values, we have
15
16. 2.Size of the shaft when subjected to gradually applied load
Putting values of M, T, and other constants
in above equation
Putting value of Te in equation no 3
…………equation no 3
for rotating shafts with gradually applied loads
16
17. We know that the equivalent bending moment,
Putting values in above equation eq
Taking the larger of the two values, we have
17
18. Shafts Subjected to Combined Twisting
Moment and Bending Moment
When the shaft is subjected to combined twisting moment and bending moment, then the
shaft must be designed on the basis of the two moments simultaneously. Various theories
have been suggested to account for the elastic failure of the materials when they are
subjected to various types of combined stresses. The following two theories are important
from the subject point of view :
1. Maximum shear stress theory or Guest's theory. It is used for ductile materials such
as mild steel.
2. Maximum normal stress theory or Rankine’s theory. It is used for brittle materials
such as cast iron.
Let τ = Shear stress induced due to twisting moment, and
σb = Bending stress (tensile or compressive) induced due to bending moment.
According to maximum shear stress theory, the maximum shear stress in the shaft,
21. What is key ?????
A key is a machine
element used to connect a rotating
machine element to a shaft.
It is always inserted parallel to
the exist of the shaft.
A keyway is a slot in a shaft
and hub of the pulley to
accommodate a key.
23. Sunk key
• The sunk key are provided half in the keyway of the shaft
and half in the keyway of the hub .
• The sunk key are of the following types:
1. Rectangular key
2. Square key
3. Parallel key
4. Gib-Head key
5. Feather key
6. Woodruff Key
24. Rectangular Key
• A key is a piece of mild steel inserted between the shaft and
hub of the pulley to connect these together in order to prevent
relative motion between them.
The key has taper 1 in 100 on the top side only.
25. Square Key
• The only difference between a rectangular sunk key and a
square sunk key is that its width and thickness are equal.
i.e , W=t=d/4
26. Parallel key
• The parallel sunk key may be of rectangular or square
section uniform in width and thickness throughout.
• It may be noted that a parallel key is a taperless and is used
where the pulley, gear or other mating piece is required to
solid along the shaft.
27. Gib-Head Key
• It is a rectangular sunk key with a head at one end known as
Gib-Head Key.
• It is usually provided to facilitate and removal of key.
28. Feather key
• A key attached to one member of a
pair and which permits relative axial
movement is known as feather key.
• It is a special type of parallel key
which transmits a turning movement
and also permits axial movement.
29. Woodruff Key
The woodruff key is an easily
adjustable key.
It is piece from a cylindrical disc
having segmental cross-section in front
view of figure.
This key is largely used in machine
tool and automobile construction.
30. Hollow Saddle Key :-
A Hollow saddle key is a taper
key which fits in a keyway in the
hub and the bottom of the key is
shaped to fit the curved surface of
the shaft.
•It is used as a temporary fastening
in fixing and setting cams etc.
31. Tangent Keys
The tangent key are fitted in a pair at
right angles.
Each key is to withatand torsion in
one direction only.
sThey are used in large heavy duty
shaft.
32. Round key
The round keys, are circular in section and fit into holes
drilled partly in the shaft and partly in the hub.
They have advantage that their keyways may be drilled and
reamed after the mating parts have been assembled.
33. Splines
Sometimes, keys are made integral with the shaft which fit
in the keyways broached in the hub. Such shafts are known as
splined shafts.
The Splined shaft are used when the forces to be transmitted
is large in proportional to the size of the shaft.