This research paper presents a new technique for the synthesis of complex planar mechanisms. The author
calls this technique ‘nomogram-based synthesis’ since it depends on a kinematic nomogram facilitating the
synthesis of complex planar mechanisms without need to complex optimization procedures. A procedure of five
steps is presented to synthesize the mechanism under study for time ratio up to 4.3, normalized stroke up to 3.33.
The nomogram based synthesis can maintain transmission angle to be within a range from 94 to 120 degrees
indicating the effectiveness of the synthesis approach presented.
Keywords — Nomogram-based mechanism synthesis, 6 bar-2 sliders planar mechanism, successful
mechanism performance.
This research paper presents a new technique for the synthesis of complex planar mechanisms. The author
calls this technique ‘nomogram-based synthesis’ since it depends on a kinematic nomogram facilitating the
synthesis of complex planar mechanisms without need to complex optimization procedures. A procedure of five
steps is presented to synthesize the mechanism under study for time ratio up to 4.3, normalized stroke up to 3.33.
The nomogram based synthesis can maintain transmission angle to be within a range from 94 to 120 degrees
indicating the effectiveness of the synthesis approach presented.
Keywords — Nomogram-based mechanism synthesis, 6 bar-2 sliders planar mechanism, successful
mechanism performance.
This PPT covers relative motion between particles in a very systematic and lucid manner. I hope this PPT will be helpful for instructor's as well as students.
why we go for RK Method, instead of Euler's Method, Even it also contains the visual explanation of RK Method, Easy to Understand with visual pictures fully Explained.
This PPT covers curvilinear motion of an object in a very systematic and lucid manner. I hope this PPT will be helpful for instructor's as well as students.
Recent developments in the field of reduced order modeling - and in particular, active subspace construction - have made it possible to efficiently approximate complex models by constructing low-order response surfaces based upon a small subspace of the original high dimensional parameter space. These methods rely upon the fact that the response tends to vary more prominently in a few dominant directions defined by linear combinations of the original inputs, allowing for a rotation of the coordinate axis and a consequent transformation of the parameters. In this talk, we discuss a gradient free active subspace algorithm that is feasible for high dimensional parameter spaces where finite-difference techniques are impractical. We illustrate an initialized gradient-free active subspace algorithm for a neutronics example implemented with SCALE6.1.
This PPT covers relative motion between particles in a very systematic and lucid manner. I hope this PPT will be helpful for instructor's as well as students.
why we go for RK Method, instead of Euler's Method, Even it also contains the visual explanation of RK Method, Easy to Understand with visual pictures fully Explained.
This PPT covers curvilinear motion of an object in a very systematic and lucid manner. I hope this PPT will be helpful for instructor's as well as students.
Recent developments in the field of reduced order modeling - and in particular, active subspace construction - have made it possible to efficiently approximate complex models by constructing low-order response surfaces based upon a small subspace of the original high dimensional parameter space. These methods rely upon the fact that the response tends to vary more prominently in a few dominant directions defined by linear combinations of the original inputs, allowing for a rotation of the coordinate axis and a consequent transformation of the parameters. In this talk, we discuss a gradient free active subspace algorithm that is feasible for high dimensional parameter spaces where finite-difference techniques are impractical. We illustrate an initialized gradient-free active subspace algorithm for a neutronics example implemented with SCALE6.1.
Design and Simulation of a Modified Architecture of Carry Save AdderCSCJournals
This paper presents a technology-independent design and simulation of a modified architecture of the Carry-Save Adder. This architecture is shown to produce the result of the addition fast and by requiring a minimum number of logic gates. Binary addition is carried out by a series of XOR, AND and Shift-left operations. These operations are terminated with a completion signal indicating that the result of the addition is obtained. Because the number of shift operations carried out varies from 0 to n for n-bit addends, a behavioral model was developed in which all the possible addends having 2- to 15-bits were applied. A mathematical model was deducted from the data and used to predict the average number of shift required for standard binary numbers such as 32, 64 or 128-bits. 4-bit prototypes of this adder were designed and simulated in both synchronous and asynchronous modes of operation.
Troubleshooting and Enhancement of Inverted Pendulum System Controlled by DSP...Thomas Templin
An inverted pendulum is a pendulum that has its center of mass above its pivot point. It is often implemented with the pivot point mounted on a cart that can move horizontally and may be called a cart-and-pole system. A normal pendulum is always stable since the pendulum hangs downward, whereas the inverted pendulum is inherently unstable and trivially underactuated (because the number of actuators is less than the degrees of freedom). For these reasons, the inverted pendulum has become one of the most important classical problems of control engineering. Since the 1950s, the inverted-pendulum benchmark, especially the cart version, has been used for the teaching and understanding of the use of linear-feedback control theory to stabilize an open-loop unstable system.
The objectives of this project are to:
• Focus on hardware and software troubleshooting and enhancement of an inverted-pendulum system controlled by a DSP28355 microprocessor and CCSv7.1 software.
• Use the swing-up strategy to move the pendulum into the unstable upward position (‘saddle’). The cart/pole system employs linear bearings for back-and-forward motion. The motor shaft has a pinion gear that rides on a track permitting the cart to move in a linear fashion. Both rack and pinion are made of hardened steel and mesh with a tight tolerance. The rack-and-pinion mechanism eliminates undesirable effects found in belt-driven and free-wheel systems, such as slippage or belt stretching, ensuring consistent and continuous traction.
• The motor shaft is coupled to a high-resolution optical encoder that accurately measures the position of the cart. The angle of the pendulum is also measured by an optical encoder, and the system employs an LQR controller to stabilize the pendulum rod at the unstable-equilibrium position.
• Addition of real-time status reporting and visualization of the system.
For the project, the Quanser High Frequency Linear Cart (HFLC) was used. The HFLC system consists of a precisely machined solid aluminum cart driven by a high-power 3-phase brushless DC motor. The cart slides along two high-precision, ground-hardened stainless steel guide rails, allowing for multiple turns and continuous measurement over the entire range of motion.
Our team implemented a control strategy that consists of a linear stabilizing LQR controller, proportional-integral swing-up control, and a supervisory coordinator that determines the control strategy (LQR or swing-up) to be used at any given time. The function of the linear stabilizer is to stabilize the system when it is in the vicinity of the unstable equilibrium. When the pendulum is in its natural state (straight-down stable-equilibrium node), the swing-up controller provides the cart/pendulum system with adequate energy to move the pendulum to the unstable equilibrium inside the “region of attraction” in which the linearized LQR controller is functional.
Efficient combined fuzzy logic and LMS algorithm for smart antennaTELKOMNIKA JOURNAL
The smart antennas are broadly used in wireless communication. The least mean square (LMS) algorithm is a procedure that is concerned in controlling the smart antenna pattern to accommodate specified requirements such as steering the beam toward the desired signal, in addition to placing the deep nulls in the direction of unwanted signals. The conventional LMS (C-LMS) has some drawbacks like slow convergence speed besides high steady state fluctuation error. To overcome these shortcomings, the present paper adopts an adaptive fuzzy control step size least mean square (FC-LMS) algorithm to adjust its step size. Computer simulation outcomes illustrate that the given model has fast convergence rate as well as low mean square error steady state.
An Area-efficient Montgomery Modular Multiplier for CryptosystemsIJERA Editor
RSA is one of the most widely adopted public key algorithms at present and it requires repeated modular
multiplications to accomplish the computation of modular exponentiation. A famous approach to implement
modular multiplication in hardware circuits is based on the Montgomery modular multiplication algorithm since
it has many advantages. To speed up the encryption/decryption process, many high-speed Montgomery modular
multiplication algorithms and hardware architectures employ carry-save addition. But CSA based architecture
increases the area. In this paper, in order to reduce the area of the CSA based multiplier, an area-efficient
algorithm called Double Add Reduce algorithm is introduced. Then the performance analysis of the new design
with the previous had done for comparison.
Using Generic Image Processing Operations to Detect a Calibration GridJan Wedekind
Camera calibration is an important problem in 3D computer vision. The problem of determining the camera parameters has been studied extensively. However the algorithms for determining the required correspondences are either semi-automatic (i.e. they require user interaction) or they involve difficult to implement custom algorithms.
We present a robust algorithm for detecting the corners of a calibration grid and assigning the correct correspondences for calibration . The solution is based on generic image processing operations so that it can be implemented quickly. The algorithm is limited to distortion-free cameras but it could potentially be extended to deal with camera distortion as well. We also present a corner detector based on steerable filters. The corner detector is particularly suited for the problem of detecting the corners of a calibration grid.
- See more at: http://figshare.com/articles/Using_Generic_Image_Processing_Operations_to_Detect_a_Calibration_Grid/696880#sthash.EG8dWyTH.dpuf
At present scenario, productivity and economics of machining work pieces in large
quantity is greatly affected by use of work holding devices like fixture. To achieve
require accuracy with reduced rework and easy handling, fixtures are provided. This
project is about designing the fixture for pressing bearing inside the crank case. For
this purpose of designing and analysing the modelling software known as solid works is
to be used. The fixture is design mainly to get multiple bearing pressed on crank case
while keeping it stable and to get the accuracy of press within tolerance limit.
At present scenario, productivity and economics of machining work pieces in large quantity is greatly affected by use of work holding devices like fixture. To achieve require accuracy with reduced rework and easy handling, fixtures are provided. This project is about designing the fixture for pressing bearing inside the crank case. For this purpose of designing and analysing the modelling software known as solid works is to be used. The fixture is design mainly to get multiple bearing pressed on crank case while keeping it stable and to get the accuracy of press within tolerance limit.
Design of multiple Bearings pressing Fixture in Crank Case
Bearing fixed in to crank case with pushing upper plate or by using ram, different Part sketches,and their assembly
Why fixture is necessary to manufacturing and it's benefits
Components uses in fixturefor for bearings pressing Fixture in manufacturing
Please keep in mind fixture should #accurate & precise upto 99%, If any mistake in fixture that result impact on final product.
Manufacturing systems have advanced through three major phases
Current challenge for sustainable manufacturing
System dynamics modeling procedure
System dynamics model development
Model validation procedure
Conclusions
by Elsevier (Journal of Manufacturing System)
Welding Fixture, some attention in welding fixture design,Application of modular fixture and dedicated fixture,Fixture design verification
Ref. - elsevier journals
Ultrasonic Welding has higher strength compare to normal used welding, micro ultrasonic welding using composite film,effect of Ultrasonic vibration enhance Friction stir welding,Ultrasonic spot welding of airo space aluminum alloy
More from Atmiya Institute of Technology and Science (Past) (7)
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
About
Indigenized remote control interface card suitable for MAFI system CCR equipment. Compatible for IDM8000 CCR. Backplane mounted serial and TCP/Ethernet communication module for CCR remote access. IDM 8000 CCR remote control on serial and TCP protocol.
• Remote control: Parallel or serial interface.
• Compatible with MAFI CCR system.
• Compatible with IDM8000 CCR.
• Compatible with Backplane mount serial communication.
• Compatible with commercial and Defence aviation CCR system.
• Remote control system for accessing CCR and allied system over serial or TCP.
• Indigenized local Support/presence in India.
• Easy in configuration using DIP switches.
Technical Specifications
Indigenized remote control interface card suitable for MAFI system CCR equipment. Compatible for IDM8000 CCR. Backplane mounted serial and TCP/Ethernet communication module for CCR remote access. IDM 8000 CCR remote control on serial and TCP protocol.
Key Features
Indigenized remote control interface card suitable for MAFI system CCR equipment. Compatible for IDM8000 CCR. Backplane mounted serial and TCP/Ethernet communication module for CCR remote access. IDM 8000 CCR remote control on serial and TCP protocol.
• Remote control: Parallel or serial interface
• Compatible with MAFI CCR system
• Copatiable with IDM8000 CCR
• Compatible with Backplane mount serial communication.
• Compatible with commercial and Defence aviation CCR system.
• Remote control system for accessing CCR and allied system over serial or TCP.
• Indigenized local Support/presence in India.
Application
• Remote control: Parallel or serial interface.
• Compatible with MAFI CCR system.
• Compatible with IDM8000 CCR.
• Compatible with Backplane mount serial communication.
• Compatible with commercial and Defence aviation CCR system.
• Remote control system for accessing CCR and allied system over serial or TCP.
• Indigenized local Support/presence in India.
• Easy in configuration using DIP switches.
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.
Student information management system project report ii.pdfKamal Acharya
Our project explains about the student management. This project mainly explains the various actions related to student details. This project shows some ease in adding, editing and deleting the student details. It also provides a less time consuming process for viewing, adding, editing and deleting the marks of the students.
NO1 Uk best vashikaran specialist in delhi vashikaran baba near me online vas...Amil Baba Dawood bangali
Contact with Dawood Bhai Just call on +92322-6382012 and we'll help you. We'll solve all your problems within 12 to 24 hours and with 101% guarantee and with astrology systematic. If you want to take any personal or professional advice then also you can call us on +92322-6382012 , ONLINE LOVE PROBLEM & Other all types of Daily Life Problem's.Then CALL or WHATSAPP us on +92322-6382012 and Get all these problems solutions here by Amil Baba DAWOOD BANGALI
#vashikaranspecialist #astrologer #palmistry #amliyaat #taweez #manpasandshadi #horoscope #spiritual #lovelife #lovespell #marriagespell#aamilbabainpakistan #amilbabainkarachi #powerfullblackmagicspell #kalajadumantarspecialist #realamilbaba #AmilbabainPakistan #astrologerincanada #astrologerindubai #lovespellsmaster #kalajaduspecialist #lovespellsthatwork #aamilbabainlahore#blackmagicformarriage #aamilbaba #kalajadu #kalailam #taweez #wazifaexpert #jadumantar #vashikaranspecialist #astrologer #palmistry #amliyaat #taweez #manpasandshadi #horoscope #spiritual #lovelife #lovespell #marriagespell#aamilbabainpakistan #amilbabainkarachi #powerfullblackmagicspell #kalajadumantarspecialist #realamilbaba #AmilbabainPakistan #astrologerincanada #astrologerindubai #lovespellsmaster #kalajaduspecialist #lovespellsthatwork #aamilbabainlahore #blackmagicforlove #blackmagicformarriage #aamilbaba #kalajadu #kalailam #taweez #wazifaexpert #jadumantar #vashikaranspecialist #astrologer #palmistry #amliyaat #taweez #manpasandshadi #horoscope #spiritual #lovelife #lovespell #marriagespell#aamilbabainpakistan #amilbabainkarachi #powerfullblackmagicspell #kalajadumantarspecialist #realamilbaba #AmilbabainPakistan #astrologerincanada #astrologerindubai #lovespellsmaster #kalajaduspecialist #lovespellsthatwork #aamilbabainlahore #Amilbabainuk #amilbabainspain #amilbabaindubai #Amilbabainnorway #amilbabainkrachi #amilbabainlahore #amilbabaingujranwalan #amilbabainislamabad
Water scarcity is the lack of fresh water resources to meet the standard water demand. There are two type of water scarcity. One is physical. The other is economic water scarcity.
Industrial Training at Shahjalal Fertilizer Company Limited (SFCL)MdTanvirMahtab2
This presentation is about the working procedure of Shahjalal Fertilizer Company Limited (SFCL). A Govt. owned Company of Bangladesh Chemical Industries Corporation under Ministry of Industries.
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.
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.
Planning Of Procurement o different goods and services
An adaptive moving total least squares method for curve fitting
1. A Project
Presentation
on
“An adaptive moving total least squares method for curve
fitting”
MECHANICAL DEPARTMENT
Prepared By:-
Kaumil Shah -- 170050750006
(PG – AMS)
Guided By:-
Prof. RAVI K BRAR
2. •The moving least square (MLS) approximation is an important
method to form the shape function in the meshless methods
•It is evolved from the ordinary least squares method, and the
corresponding meshless method, in which the shape function is
obtained with the moving least square approximation, can achieve a
very precise solution
•The MLS approximation has been largely documented in the
literature and used by many scholars for optimization problems
•As a fitting technology, MLS is one way for building the regression
model
•MLS method for the numerical solution has been applied especially
Introduction
3. in the engineering literatures for the prediction of machined surface quality and
directed projecting onto point clouds.
•This method starts with a weighted least squares formulation for an arbitrary
fixed point, and then move this point over the entire parameter domain, where a
weighted least squares fit is calculated and evaluated for each measured point
individually
•In this paper, a curve fitting approach called adaptive moving total least squares
(AMTLS) method is proposed for EIV model considering the direction of local
approximants
4. Adaptive moving total least squares (AMTLS) METHOD :
The following procedure is carried out in this paper to determine the parameter k in
AMTLS method:
• Step 1: Add the known random error (di, ei) to the measured data (xim, yim)
for getting tested data (xit, yit).
• Step 2: k is set to 0.
• Step 3: Fit the tested data (xit, yit) using AMTLS for getting fitting value (xif,
yif).
• Step 4: According to Ref. [18], calculate the fitting errors of the measured
value yim and fitting value yif by
S = summation of (i=1 to n) | yim- yif | and record the value of s.
• Step 5: Vary k with an increment of certain step h.
• Step 6: Repeat Step 3–Step 5 until s reaches the minimum value.
• Step 7: Record k corresponding to the minimum value of s.
• Step 8: Repeat Step 1–Step7 for r times.
• Step 9: Average the recorded values of k and take it as the final value for λ in
moving total least squares (AMTLS).
5. 0.00001 0.001 0.4994485 0.4994527 0.4994432
0.0001 0.001 0.4997744 0.4997986 0.4997637
0.0005 0.001 0.5005451 0.5005579 0.5005358
0.001 0.001 0.5001428 0.5002001 0.5001057
0.005 0.001 0.5488532 0.5489189 0.5485946
0.001 0.0001 0.4872520 0.4872455 0.4871978
0.005 0.0001 0.5360100 0.5358991 0.5355786
0.001 0.00001 0.4903655 0.4903647 0.4903223
0.005 0.00001 0.5517421 0.5517160 0.5514604
0.005 0.000005 0.5258014 0.5257660 0.5254073
Variance
Δi εi MLS MTLS AMTLS
So
• The fitting accuracy of MTLS changes from worse than that of MLS to better than that of
MLS when the value di/ei increases, whereas the fitting accuracy of MLS is always better
than that of MTLS in table 1.
• The fitting results of MLS and MTLS show complicated phenomenon. So it is difficult to
choose the proper fitting method, MLS or MTLS, for the better result.
Table - 1
9. Variance
Δi εi MLS MTLS AMTLS
So
0.015 0.0005 1.41793895 1.41840855 1.41734746
(λ = 1.62)
•The results of Tables 1 and 2 show that the direction of local approximants
is also influenced by the weight function with compact support,which
defines the influence domain of x and attributes a weight to each discrete
point. In AMTLS, the direction of the local approximants can be determined
by the parameter λ based on the above-mentioned procedure.
•So the fitting accuracy of AMTLS is always better than those of MLS and
MTLS as shown in Tables 1 and 2.
•However, the extra time is required for determining the parameter k in
AMTLS.
•In Example 1, when n = 160, d= 0.3/10, h= 0.01 and r = 100, the time
required for determining λ is about 2 h.
Table - 3
10. • The repetitive positioning error of X axis is about 0.015 mm and the repetitive
error of the sensor is about 0.0005 mm.
• MLS,MTLS and AMTLS are all applied to fit the measured data. Figure shows
the fitting curve of AMTLS for measured data.
•The results for three methods are listed in Table 3.
•Table 3 indicates that the fitting accuracy of AMTLS is better than those of MLS
and MTLS when the direction of the local approximants is determined by λ,where
λ = 1.62.
12. Conclusions
•The advantage of the moving least squares and moving total least squares
approximation is to obtain the shape function with higher order continuity and
consistency by employing the basis functions with lower order and choosing a
suitable weight function with compact support.
•This paper presents a curve fitting method called Adaptive Moving Total Least
Squares (AMTLS) method,
Different from moving least squares and moving total least squares
method, a parameter λ is introduced to determine the direction of local
approximation in Adaptive Moving Total Least Squares (AMTLS) method &
Considering the practical need for measurement, a procedure is given
to obtain the parameter λ. moving least squares and moving total least squares
can be regarded as the special cases of Adaptive Moving Total Least Squares
(AMTLS). Adaptive Moving Total Least Squares AMTLS method can be
converted to MLS method and MTLS method by setting different values of
parameter λ.
•The curve fitting results by AMTLS method for the discrete points generated
by numerical simulation or obtained by measurement are compared with those
13. by moving least squares (MLS) and moving total least squares (MTLS) method on
the same condition.
•Adaptive Moving Total Least Squares (AMTLS) method has better adaptability
than MLS method and moving total least squares (MTLS) method for curve
fitting,which confirms the validity of the proposed AMTLS method for curve
fitting, which confirms the validity of the proposed Adaptive Moving Total Least
Squares (AMTLS) method.
•This paper only considers the direction of local approximants is influenced by the
error of variables for certain weight function.