The document discusses the Laplace transform, which takes a function of time and transforms it into a function of complex frequency. This transformation converts differential equations into algebraic equations, simplifying solving problems involving systems. The Laplace transform has many applications in fields like engineering, physics, and astronomy by allowing analysis of linear time-invariant systems through properties like derivatives becoming multiplications in the frequency domain.
Laplace transforms
Definition of Laplace Transform
First Shifting Theorem
Inverse Laplace Transform
Convolution Theorem
Application to Differential Equations
Laplace Transform of Periodic Functions
Unit Step Function
Second Shifting Theorem
Dirac Delta Function
It is the ppt on Laplace Transform and it's applications.This topic is taken out from Advance Engineering Mathematics comes in 3rd semester of engineering.
Laplace transforms
Definition of Laplace Transform
First Shifting Theorem
Inverse Laplace Transform
Convolution Theorem
Application to Differential Equations
Laplace Transform of Periodic Functions
Unit Step Function
Second Shifting Theorem
Dirac Delta Function
It is the ppt on Laplace Transform and it's applications.This topic is taken out from Advance Engineering Mathematics comes in 3rd semester of engineering.
its ppt for the laplace transform which part of Advance maths engineering. its contains the main points and one example solved in it and have the application related the chemical engineering
Analytic Function, C-R equation, Harmonic function, laplace equation, Construction of analytic function, Critical point, Invariant point , Bilinear Transformation
its ppt for the laplace transform which part of Advance maths engineering. its contains the main points and one example solved in it and have the application related the chemical engineering
Analytic Function, C-R equation, Harmonic function, laplace equation, Construction of analytic function, Critical point, Invariant point , Bilinear Transformation
this lecture provide the different features of pulse code modulation it explains the concept using example and explained step by step shows the flat sampling and other type shows the advantage of pam provides the pcm system block diagram a brief introduction about delta modulation
will provide you a basic introduction about digital modulation techniques, provide a basic introduction of ASK(Amplitude shift keying) PSK(phase shift keying) FSK(frequency shift keying) and will also provide a introduction about types of PSK
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.
Saudi Arabia stands as a titan in the global energy landscape, renowned for its abundant oil and gas resources. It's the largest exporter of petroleum and holds some of the world's most significant reserves. Let's delve into the top 10 oil and gas projects shaping Saudi Arabia's energy future in 2024.
Hybrid optimization of pumped hydro system and solar- Engr. Abdul-Azeez.pdffxintegritypublishin
Advancements in technology unveil a myriad of electrical and electronic breakthroughs geared towards efficiently harnessing limited resources to meet human energy demands. The optimization of hybrid solar PV panels and pumped hydro energy supply systems plays a pivotal role in utilizing natural resources effectively. This initiative not only benefits humanity but also fosters environmental sustainability. The study investigated the design optimization of these hybrid systems, focusing on understanding solar radiation patterns, identifying geographical influences on solar radiation, formulating a mathematical model for system optimization, and determining the optimal configuration of PV panels and pumped hydro storage. Through a comparative analysis approach and eight weeks of data collection, the study addressed key research questions related to solar radiation patterns and optimal system design. The findings highlighted regions with heightened solar radiation levels, showcasing substantial potential for power generation and emphasizing the system's efficiency. Optimizing system design significantly boosted power generation, promoted renewable energy utilization, and enhanced energy storage capacity. The study underscored the benefits of optimizing hybrid solar PV panels and pumped hydro energy supply systems for sustainable energy usage. Optimizing the design of solar PV panels and pumped hydro energy supply systems as examined across diverse climatic conditions in a developing country, not only enhances power generation but also improves the integration of renewable energy sources and boosts energy storage capacities, particularly beneficial for less economically prosperous regions. Additionally, the study provides valuable insights for advancing energy research in economically viable areas. Recommendations included conducting site-specific assessments, utilizing advanced modeling tools, implementing regular maintenance protocols, and enhancing communication among system components.
Explore the innovative world of trenchless pipe repair with our comprehensive guide, "The Benefits and Techniques of Trenchless Pipe Repair." This document delves into the modern methods of repairing underground pipes without the need for extensive excavation, highlighting the numerous advantages and the latest techniques used in the industry.
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Hierarchical Digital Twin of a Naval Power SystemKerry Sado
A hierarchical digital twin of a Naval DC power system has been developed and experimentally verified. Similar to other state-of-the-art digital twins, this technology creates a digital replica of the physical system executed in real-time or faster, which can modify hardware controls. However, its advantage stems from distributing computational efforts by utilizing a hierarchical structure composed of lower-level digital twin blocks and a higher-level system digital twin. Each digital twin block is associated with a physical subsystem of the hardware and communicates with a singular system digital twin, which creates a system-level response. By extracting information from each level of the hierarchy, power system controls of the hardware were reconfigured autonomously. This hierarchical digital twin development offers several advantages over other digital twins, particularly in the field of naval power systems. The hierarchical structure allows for greater computational efficiency and scalability while the ability to autonomously reconfigure hardware controls offers increased flexibility and responsiveness. The hierarchical decomposition and models utilized were well aligned with the physical twin, as indicated by the maximum deviations between the developed digital twin hierarchy and the hardware.
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.
Overview of the fundamental roles in Hydropower generation and the components involved in wider Electrical Engineering.
This paper presents the design and construction of hydroelectric dams from the hydrologist’s survey of the valley before construction, all aspects and involved disciplines, fluid dynamics, structural engineering, generation and mains frequency regulation to the very transmission of power through the network in the United Kingdom.
Author: Robbie Edward Sayers
Collaborators and co editors: Charlie Sims and Connor Healey.
(C) 2024 Robbie E. Sayers
1. Project
Project Title: Laplace Transform
Defination:
In mathematics the Laplace transform is an integral transform named after its discoverer Pierre-
Simon Laplace (/ləˈplɑːs/). It takes a function of a positive real variable t (often time) to a function of
a complex variable s (frequency).
The Laplace transform is invertible on a large class of functions. The inverse Laplace transform takes
a function of a complex variable s (often frequency) and yields a function of a real variable t (time).
Given a simple mathematical or functional description of an input or output to a system, the Laplace
transform provides an alternative functional description that often simplifies the process of analyzing
the behavior of the system, or in synthesizing a newsystembased on a set of specifications
Equation of Laplace Transform:
Supposethatf(t) is apiecewisecontinuousfunction. TheLaplace transformof f(t) is denoted
and definedas
Restrictions:
There are two governing factors that determine whether Laplace transforms can be used:
f(t) must be at least piecewise continuous for t ≥ 0
|f(t)| ≤ Meγt
where M and γ are constants
Example Compute L{1}
Solution
There’s not really a whole lot do here other than plug the function f(t) = 1 into (1)
Now, at this point notice that this is nothing more than the integral in the previous example
with . Therefore, all we need to do is reuse (2) with the appropriate
substitution. Doing this gives,
Or, with some simplification we have,
2. Histroy:
The Laplace transform is named after mathematician and astronomer Pierre-Simon Laplace, who
used a similar transform (now called z transform) in his work on probability theory. The current
widespread use of the transform came about soon after World War II although it had been used in the
19th century by Abel, Lerch, Heaviside, and Bromwich.
From1744, Leonhard Euler investigated integrals of the form
as solutions of differential equations but did not pursue the matter very far. Joseph Louis
Lagrange was an admirer of Euler and, in his work on integratingprobability density functions,
investigated expressions of the form
which some modern historians have interpreted within modern Laplace transformtheory
These types of integrals seem first to have attracted Laplace's attention in 1782 where he was
following in the spirit of Euler in using the integrals themselves as solutions of equations. However, in
1785, Laplace took the critical step forward when, rather than just looking for a solution in the form
of an integral, he started to apply the transforms in the sense that was later to become popular. He
used an integral of the form:
in to a Mellin transform, to transform the whole of a difference equation, in order to look for solutions
of the transformed equation. He then went on to apply the Laplace transform in the same way and
started to derive some of its properties,beginning to appreciate its potential power.
Laplace also recognised that Joseph Fourier's method of Fourier series for solving the diffusion
equation could only apply to a limited region of space because those solutions were periodic. In 1809,
Laplace applied his transformto find solutions that diffused indefinitely in space.
Properties:
The Laplace transform has a number of properties that make it useful for analyzing linear dynamical
systems. The most significant advantage is thatdifferentiation and integration become multiplication
and division, respectively, by s (similarly to logarithms changing multiplication of numbers to
addition of their logarithms). Because of this property, the Laplace variable s is also known
as operator variable in the L domain: either derivative operator or (for s−1
)integration operator. The
transform turns integral equations and differential equations to polynomial equations, which are
much easier to solve. Once solved,use of the inverse Laplace transformreverts to the time domain.
Given the functions f(t) and g(t),and their respective Laplace transforms F(s) and G(s):
3. the following table is a list of properties of unilateral Laplace transform
Properties of the unilateral Laplace transform
Time domain 's' domain Comment
Linearity
Can be proved using basic rules of
integration.
Frequency-
domain
derivative
F′ is the first derivative of F.
Frequency-
domain
general
derivative
More general form, nth derivative
of F(s).
Derivative
f is assumed to be a differentiable
function, and its derivative is
assumed to be ofexponential type.
This can then be obtained
by integration by parts
Initial value theorem:
Final value theorem:
,
The final value theoremis useful because it gives the long-termbehaviour without having to
perform partial fraction decompositions or otherdifficult algebra. If has a pole in the right-
hand plane orpoles on the imaginary axis (e.g., if or ), the behaviour
of this formula is undefined.
4. Importance of Laplace transform:
The main idea behind the Laplace Transformation is that we can solve an equation (orsystemof
equations) containing differential and integral terms by transforming the equation in "t-space" to one
in "s-space". This makes the problemmuch easier to solve. The kinds of problems where the Laplace
Transformis invaluable occur in electronics..
Laplace Transform transforms a function into an entirely new variable space(traditionally)
Since derivate of all order are eliminated this turns a probelminto entirely simplified expression.
Application of laplace in engineering:
The Laplace transformis used frequently in engineering and physics; the output of a linear time-
invariant systemcan be calculated by convolving its unitimpulse response with the input signal.
Performing this calculation in Laplace space turns the convolution into a multiplication; the latter
being easier to solve because of its algebraic form.
Real-Life Applications
Semiconductor mobility
Call completion in wireless networks
Vehicle vibrations on compressed rails
Behavior of magnetic and electric fields above the atmosphere
In science and engineering:
Solving a differential equation
One common application of Laplace transformis solving differential equations
However,such application MUST satisfy the following two conditions:
The variable(s) in the function for the solution,e.g., x, y,z, t must cover
the range of (0,∞).
That means the solution function, e.g., u(x) or u(t) MUST also be VALID
for the range of (0,∞)
ALL appropriate conditions forthe differential equation MUST be available
In Physics:
In nuclear physics,the Laplace transformgoverns radioactive decay: the number of radioactive
atoms N in a sample of a radioactive isotopedecaysat a rate proportional to N. This leadsto the first
order lineardifferential equation..Moreever it is used in calculating the wave equation.
Deriving the complex impedance for a capacitor
In the theory of electrical circuits, the current flow in a capacitor is proportional to the capacitance and rate
of change in the electrical potential (in SI units). Symbolically, this is expressed by the differential
equation
where C is the capacitance (in farads) of the capacitor, i = i(t) is the electric current (in amperes) through
the capacitor as a function of time, and v = v(t) is the voltage (in volts) across the terminals of the
capacitor, also as a function of time.
5. Taking the Laplace transform of this equation, we obtain
where
and
Solving for V(s) we have
The definition of the complex impedance Z (in ohms) is the ratio of the complex voltage V divided by the
complex current I while holding the initial state Vo at zero:
Using this definition and the previous equation, we find:
which is the correct expression for the complex impedance of a capacitor.
Mixing sines,cosines, and exponentials:
Time function Laplace transform
Phase delay:
Time function Laplace transform
Determining structure of astronomical object from spectrum:
6. The wide and general applicability of the Laplace transform and its inverse is illustrated by an
application in astronomy which provides some information on the spatial distribution of matter of
an astronomical source of radiofrequency thermal radiation too distant to resolve as more than a
point, given its flux density spectrum, rather than relating the time domain with the spectrum
(frequency domain).
Assuming certain properties of the object, e.g. spherical shape and constant temperature, calculations
based on carrying out an inverse Laplace transformation on the spectrum of the object can produce
the only possible model of the distribution of matter in it (density as a function of distance from the
center) consistent with the spectrum.[20]
When independent information othe structure of an object is
available, the inverse Laplace transform method has been found to be in gLaplace transform converts
complex ordinary differential equations (ODEs) into differential equations that have polynomials in
it.
Practical uses:
sending signals over any two-way communication medium
study of control systems
analysis of HVAC (Heating, Ventilation and Air Conditioning)
simplify calculations in systemmodelling
analysis of linear time-invariant systems
quickly solve differential equations occurring in the analysis of electronic circuits
In electrical engineering:
Time domain Laplace domain
v(t) i(t) F(s) V(S) I(S)
Resistor R
Inductor L
L=di(t)dt