Shaft couplings by Sheharyar khan (Uet Lahore)Sheharyar Khan
This lesson is from the subject Machine design, and it is very important on the subject point of view that how shafts and couplings are important while designing a machine.
Shaft couplings by Sheharyar khan (Uet Lahore)Sheharyar Khan
This lesson is from the subject Machine design, and it is very important on the subject point of view that how shafts and couplings are important while designing a machine.
Presentation on coupling prepared by Engr. Usman Ghani.
The presentation is made to foucs on very basics of coupling, even people from non engineering fields can also get an introductory idea from this presentation.
If you like this ppt and if you want me to make presentations on other important topics. please let me know.
Presentation on coupling prepared by Engr. Usman Ghani.
The presentation is made to foucs on very basics of coupling, even people from non engineering fields can also get an introductory idea from this presentation.
If you like this ppt and if you want me to make presentations on other important topics. please let me know.
Design of Roller Chain Drive theory by Prof. Sagar A. DhotareSagar Dhotare
This covers following Points
1. Introduction.
2. Advantages and Disadvantages of Chain Drive over Belt or Rope Drive.
3. Terms Used in Chain Drive.
4. Relation Between Pitch and Pitch Circle Diameter.
5. Velocity Ratio of Chain Drives.
6. Length of Chain and Centre Distance.
7. Classification of Chains.
8. Hoisting and Hauling Chains.
9. Conveyor Chains.
10. Power Transmitting Chains.
11. Characteristics of Roller Chains.
12. Factor of Safety for Chain Drives.
13. Permissible Speed of Smaller Sprocket.
14. Power Transmitted by Chains.
15. Number of Teeth on the Smaller or Driving Sprocket
or Pinion.
16. Maximum Speed for Chains.
17. Principal Dimensions of Tooth Profile.
18. Design Procedure for Chain Drive.
Coupling is one kind of mechanical device which is used to connect two shafts together at their
ends for the purpose of transmitting power.
The primary purpose of couplings is to join two pieces of rotating equipment while permitting
some degree of misalignment or end movement or both.
A rigid coupling is a unit of hardware used to join two shafts within a motor or mechanical system.
It may be used to connect two separate systems, such as a motor and a generator, or to repair a
connection within a single system. A rigid coupling may also be added between shafts to reduce
shock and wear at the point where the shafts meet.
Flanged coupling is a type of rigid coupling in which two co-linear shafts are connected by the
flanges. The coupling enables torque transmission between the shafts & prevents relative rotation
between them.
In the project work a flanged coupling was made by local material available & the analysis of
various stresses & safety factor was also performed.
The outcome of analysis is there’s no danger of failure by pure shear, even if a fatigue strength
reduction factor is included, but this same section may have severe & undefinable bending stresses
on it if the flanges are imperfectly aligned, and they surely will be. The bolts bending was neglected
since they were too small compared to the result outcome.
Finally, the computed factor of safety of the flanges suggest that it would withstand repeated
bending if the misalignment is small.
Design of clutch theory Prof. Sagar a DhotareSagar Dhotare
This covers following points,
Introduction to clutch
Classification
Requirement of good friction clutch
Requirements of material used for friction clutch
Material used for friction clutch
Considerations in Designing a Friction Clutch
Design of Single Disc or Plate Clutch
Design of Multi Disc or Plate Clutch
Design of Cone Clutch
Comparison between Single and Multi Plate Clutch
Comparison between Plate and Cone Clutch
Full Description of Energy Conservation in Pakistan.
You will get good knowledge from it. Totally on Currently Energy based scenario in Pakistan.
Share and aware.
It will help to the students of Mechanical Engineering. These notes are according to HVAC Subject. Some important topics are here for your good understanding. These are written in easy language, u can understand easily.
Immunizing Image Classifiers Against Localized Adversary Attacksgerogepatton
This paper addresses the vulnerability of deep learning models, particularly convolutional neural networks
(CNN)s, to adversarial attacks and presents a proactive training technique designed to counter them. We
introduce a novel volumization algorithm, which transforms 2D images into 3D volumetric representations.
When combined with 3D convolution and deep curriculum learning optimization (CLO), itsignificantly improves
the immunity of models against localized universal attacks by up to 40%. We evaluate our proposed approach
using contemporary CNN architectures and the modified Canadian Institute for Advanced Research (CIFAR-10
and CIFAR-100) and ImageNet Large Scale Visual Recognition Challenge (ILSVRC12) datasets, showcasing
accuracy improvements over previous techniques. The results indicate that the combination of the volumetric
input and curriculum learning holds significant promise for mitigating adversarial attacks without necessitating
adversary training.
CW RADAR, FMCW RADAR, FMCW ALTIMETER, AND THEIR PARAMETERSveerababupersonal22
It consists of cw radar and fmcw radar ,range measurement,if amplifier and fmcw altimeterThe CW radar operates using continuous wave transmission, while the FMCW radar employs frequency-modulated continuous wave technology. Range measurement is a crucial aspect of radar systems, providing information about the distance to a target. The IF amplifier plays a key role in signal processing, amplifying intermediate frequency signals for further analysis. The FMCW altimeter utilizes frequency-modulated continuous wave technology to accurately measure altitude above a reference point.
Cosmetic shop management system project report.pdfKamal Acharya
Buying new cosmetic products is difficult. It can even be scary for those who have sensitive skin and are prone to skin trouble. The information needed to alleviate this problem is on the back of each product, but it's thought to interpret those ingredient lists unless you have a background in chemistry.
Instead of buying and hoping for the best, we can use data science to help us predict which products may be good fits for us. It includes various function programs to do the above mentioned tasks.
Data file handling has been effectively used in the program.
The automated cosmetic shop management system should deal with the automation of general workflow and administration process of the shop. The main processes of the system focus on customer's request where the system is able to search the most appropriate products and deliver it to the customers. It should help the employees to quickly identify the list of cosmetic product that have reached the minimum quantity and also keep a track of expired date for each cosmetic product. It should help the employees to find the rack number in which the product is placed.It is also Faster and more efficient way.
HEAP SORT ILLUSTRATED WITH HEAPIFY, BUILD HEAP FOR DYNAMIC ARRAYS.
Heap sort is a comparison-based sorting technique based on Binary Heap data structure. It is similar to the selection sort where we first find the minimum element and place the minimum element at the beginning. Repeat the same process for the remaining elements.
NUMERICAL SIMULATIONS OF HEAT AND MASS TRANSFER IN CONDENSING HEAT EXCHANGERS...ssuser7dcef0
Power plants release a large amount of water vapor into the
atmosphere through the stack. The flue gas can be a potential
source for obtaining much needed cooling water for a power
plant. If a power plant could recover and reuse a portion of this
moisture, it could reduce its total cooling water intake
requirement. One of the most practical way to recover water
from flue gas is to use a condensing heat exchanger. The power
plant could also recover latent heat due to condensation as well
as sensible heat due to lowering the flue gas exit temperature.
Additionally, harmful acids released from the stack can be
reduced in a condensing heat exchanger by acid condensation. reduced in a condensing heat exchanger by acid condensation.
Condensation of vapors in flue gas is a complicated
phenomenon since heat and mass transfer of water vapor and
various acids simultaneously occur in the presence of noncondensable
gases such as nitrogen and oxygen. Design of a
condenser depends on the knowledge and understanding of the
heat and mass transfer processes. A computer program for
numerical simulations of water (H2O) and sulfuric acid (H2SO4)
condensation in a flue gas condensing heat exchanger was
developed using MATLAB. Governing equations based on
mass and energy balances for the system were derived to
predict variables such as flue gas exit temperature, cooling
water outlet temperature, mole fraction and condensation rates
of water and sulfuric acid vapors. The equations were solved
using an iterative solution technique with calculations of heat
and mass transfer coefficients and physical properties.
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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.
Final project report on grocery store management system..pdf
Shaft coupling
1. 3 Machine Design and CAD-ii Notes by: Muhammad Sheeraz
Shaft Coupling
Shafts are usually available up to 7 meters length due to inconvenience in transport. In order to
have a greater length, it becomes necessary to join two or more pieces of the shaft by means of
a coupling.
Shaft couplings are used in machinery for several purposes, the most common of which are the
following:
1. To provide for the connection of shafts of units that are manufactured separately such as a
motor and generator and to provide for disconnection for repairs or alternations.
2. To provide for misalignment of the shafts or to introduce mechanical flexibility.
3. To reduce the transmission of shock loads from one shaft to another.
4. To introduce protection against overloads.
5. It should have no projecting parts.
Note: A coupling is termed as a device used to make permanent or semi-permanent connection
where as a clutch permits rapid connection or disconnection at the will of the operator.
Requirements of a Good Shaft Coupling
A good shaft coupling should have the following requirements:
1. It should be easy to connect or disconnect.
2. It should transmit the full power from one shaft to the other shaft without losses.
3. It should hold the shafts in perfect alignment.
4. It should reduce the transmission of shock loads from one shaft to another shaft.
5. It should have no projecting parts.
Types of Shafts Couplings
Shaft couplings are divided into two main groups as follows:
1. Rigid coupling. It is used to connect two shafts which are perfectly aligned. Following types
of rigid coupling are important from the subject point of view:
(a) Sleeve or muff coupling.
(b) Clamp or split-muff or compression coupling, and
(c) Flange coupling.
2. Flexible coupling. It is used to connect two shafts having both lateral and angular
misalignment. Following types of flexible coupling are important from the subject point of view:
(a) Bushed pin type coupling,
(b) Universal coupling, and
(c) Oldham coupling.
We shall now discuss the above types of couplings, in detail, in the following pages.
Sleeve or Muff-coupling
It is the simplest type of rigid coupling, made of cast iron. It consists of a hollow cylinder whose
inner diameter is the same as that of the shaft. It is fitted over the ends of the two shafts by means
of a gib head key.