This document defines and classifies robots. It explains that a robot is a programmable manipulator designed to perform tasks. Industrial robots are used for manufacturing and have declining costs. Robots have links, joints, and degrees of freedom that determine their motion. They are classified by drive type, kinematic structure, degrees of freedom, and workspace geometry. Common robot types include Cartesian, cylindrical, spherical, articulated, and SCARA robots.
Comparison of analytical methods of analysing linear induction motors Chandan Kumar
Linear induction motor has found many applications, from slow moving sliding doors to high-speed ground transportation around the world. Although various methods have been developed for the analysis of linear induction motor, only few verifiable comparisons between these methods have been done in literature. These methods solve the Maxwell’s equations in and around the geometry of the machine and take care of the physical dimensions of the machine. These methods which are proved accurate are based on Fourier transform, Fourier series and Space harmonic techniques. Out of different methods of analysis, only few methods have been reported into the literatures which are capable of taking care of topological changes in Linear induction motor. Here in this work different computer programs have been developed which are based on the above techniques. These computer programs have been validated using the published results. These have been predicting the single sided and double sided Linear induction motors. A comparison of these methods has been reported for finding their suitability for the use of these methods for predicting the characteristics of LIM under different operating conditions.
Presented at National Conference on Mathemetical Modelling and Computer Simulation,2011.
Comparison of analytical methods of analysing linear induction motors Chandan Kumar
Linear induction motor has found many applications, from slow moving sliding doors to high-speed ground transportation around the world. Although various methods have been developed for the analysis of linear induction motor, only few verifiable comparisons between these methods have been done in literature. These methods solve the Maxwell’s equations in and around the geometry of the machine and take care of the physical dimensions of the machine. These methods which are proved accurate are based on Fourier transform, Fourier series and Space harmonic techniques. Out of different methods of analysis, only few methods have been reported into the literatures which are capable of taking care of topological changes in Linear induction motor. Here in this work different computer programs have been developed which are based on the above techniques. These computer programs have been validated using the published results. These have been predicting the single sided and double sided Linear induction motors. A comparison of these methods has been reported for finding their suitability for the use of these methods for predicting the characteristics of LIM under different operating conditions.
Presented at National Conference on Mathemetical Modelling and Computer Simulation,2011.
Design and Analysis of Articulated Inspection Arm of RobotIJTET Journal
Nowadays Robot play a vital role in all the activities in human life including industrial needs. There is a definite trend in the manufacture of robotic arms toward more dexterous devices, more degrees of-Freedom, and capabilities beyond the human arm. The ultimate objective is to save human lives in addition to increasing productivity and quality of high technology work environments. The objective of this project is to design, analysis of a Generic articulated robot Arm. This project deals with the modeling of a special class of single-link articulated inspection arms of robot. These arms consist of flexible massless structures having some masses concentrated at certain points of hollow sections at the beam. Some aspects of the articulated Robot that are anticipated as useful are its small cross section and its projected ability to change elevation and maneuver over obstacle require large joint torque to weight ratios for joint actuation. A knuckle joint actions actuation scheme is described and its implementation is detailed in this project. The parts of the (AIA) arm are analyzed for deflection and stress concentration under loading conditions in different angles.
Multi rotor drone small knowledge summary oneAlbert2019
UAV is the abbreviation of Unmanned Aerial Vehicle. It is an unmanned aircraft using radio remote control equipment and its own program control device, including unmanned helicopters, fixed-wing aircraft, multi-rotor aircraft, and unmanned airships.
linear induction motor for high speed application especially in traction application to make speed to max value .its operation is almost similar to poly induction motor
Pick and place task is one among the most important tasks in industrial field handled by “Selective
Compliance Assembly Robot Arm” (SCARA). Repeatability with high-speed movement in horizontal plane is
remarkable feature of this type of manipulator. The challenge of design SCARA is the difficulty of achieving
stability of high-speed movement with long length of links. Shorter links arm can move more stable. This
condition made the links should be considered restrict then followed by restriction of operation area
(workspace). In this research, authors demonstrated on expanding SCARA robot’s workspace in horizontal area
via linear sliding actuator that embedded to base link of the robot arm. With one additional prismatic joint the
previous robot manipulator with 3 degree of freedom (3-DOF), 2 revolute joints and 1 prismatic joint is become
4-DOF PRRP manipulator. This designation increased workspace of robot from 0.5698m2 performed by the
previous arm (without linear actuator) to 1.1281m2 by the propose arm (with linear actuator). The increasing
rate was about 97.97% of workspace with the same links length. The result of experimentation also indicated
that the operation time spent to reach object position was also reduced.
Do you know how industrial robots help? Here Gyanx providing a brief idea about traditional industrial robots and its usefulness. For more information visit www.gyanx.com
Brief Description regarding magnetic levitation or magnetic suspension.It is a method by which an object is suspended with no support other than magnetic fields.
Magnetic Levitation Train by Shaheen Galgali_seminar report finalshaheen galgali
Magnetic levitation is a highly advanced technology which uses the principle of Electromagnetic suspension & Electrodynamics suspension technology. It has various uses, The common point in all applications is the lack of contact and no friction. This increases efficiency, reduces maintenance costs, and increases the useful life of the system. Magnetic levitation is a technique to suspend an object without any support other than that of a magnetic field. There are already many countries that are attracted to maglev system. Many system have been proposed in different parts of the worlds. Maglev can be conveniently considered as a solution for the future needs of the world. This contribution deals with magnetic levitation. An overview of types, principles and working of magnetic levitation is given with the example by train are presented.
Design and Analysis of Articulated Inspection Arm of RobotIJTET Journal
Nowadays Robot play a vital role in all the activities in human life including industrial needs. There is a definite trend in the manufacture of robotic arms toward more dexterous devices, more degrees of-Freedom, and capabilities beyond the human arm. The ultimate objective is to save human lives in addition to increasing productivity and quality of high technology work environments. The objective of this project is to design, analysis of a Generic articulated robot Arm. This project deals with the modeling of a special class of single-link articulated inspection arms of robot. These arms consist of flexible massless structures having some masses concentrated at certain points of hollow sections at the beam. Some aspects of the articulated Robot that are anticipated as useful are its small cross section and its projected ability to change elevation and maneuver over obstacle require large joint torque to weight ratios for joint actuation. A knuckle joint actions actuation scheme is described and its implementation is detailed in this project. The parts of the (AIA) arm are analyzed for deflection and stress concentration under loading conditions in different angles.
Multi rotor drone small knowledge summary oneAlbert2019
UAV is the abbreviation of Unmanned Aerial Vehicle. It is an unmanned aircraft using radio remote control equipment and its own program control device, including unmanned helicopters, fixed-wing aircraft, multi-rotor aircraft, and unmanned airships.
linear induction motor for high speed application especially in traction application to make speed to max value .its operation is almost similar to poly induction motor
Pick and place task is one among the most important tasks in industrial field handled by “Selective
Compliance Assembly Robot Arm” (SCARA). Repeatability with high-speed movement in horizontal plane is
remarkable feature of this type of manipulator. The challenge of design SCARA is the difficulty of achieving
stability of high-speed movement with long length of links. Shorter links arm can move more stable. This
condition made the links should be considered restrict then followed by restriction of operation area
(workspace). In this research, authors demonstrated on expanding SCARA robot’s workspace in horizontal area
via linear sliding actuator that embedded to base link of the robot arm. With one additional prismatic joint the
previous robot manipulator with 3 degree of freedom (3-DOF), 2 revolute joints and 1 prismatic joint is become
4-DOF PRRP manipulator. This designation increased workspace of robot from 0.5698m2 performed by the
previous arm (without linear actuator) to 1.1281m2 by the propose arm (with linear actuator). The increasing
rate was about 97.97% of workspace with the same links length. The result of experimentation also indicated
that the operation time spent to reach object position was also reduced.
Do you know how industrial robots help? Here Gyanx providing a brief idea about traditional industrial robots and its usefulness. For more information visit www.gyanx.com
Brief Description regarding magnetic levitation or magnetic suspension.It is a method by which an object is suspended with no support other than magnetic fields.
Magnetic Levitation Train by Shaheen Galgali_seminar report finalshaheen galgali
Magnetic levitation is a highly advanced technology which uses the principle of Electromagnetic suspension & Electrodynamics suspension technology. It has various uses, The common point in all applications is the lack of contact and no friction. This increases efficiency, reduces maintenance costs, and increases the useful life of the system. Magnetic levitation is a technique to suspend an object without any support other than that of a magnetic field. There are already many countries that are attracted to maglev system. Many system have been proposed in different parts of the worlds. Maglev can be conveniently considered as a solution for the future needs of the world. This contribution deals with magnetic levitation. An overview of types, principles and working of magnetic levitation is given with the example by train are presented.
Introduction to robotics, Laws,Classification,Types, Drives,Geometry Mohammad Ehtasham
Introduction to robotics , Basic overview ,Classification of robotics,laws of robotics,Types of robot, Robot Geometry, Robot drives, Some of the key benefits of robots in industry and society
Kinematic performance analysis of 4 link planar serial manipulatoreSAT Journals
Abstract This investigation is all about determining condition number for four link planner serial manipulator. Condition number which measures the accuracy of end effector velocity is obtained from the Jacobian matrix of the four link planner serial manipulator. Inverse of a non-square matrix in the calculation of the condition number. Pseudo inverse procedure is used for the calculation of inverse of jacobian matrix using condition number. Isotropic condition for manipulator is found. “MAT Lab” 6.1.0 version is used to determine the condition number which is recently developed for complex matrix manipulations. A computer program in “MAT Lab” is written for finding Jocobian matrix, inverse of Jacobian matrix, norm of jacobian and norm of Jacobian matrix and the condition number for various input joint angles and link lengths. Keywords: Serial manipulator, Condition number, Jacobian matrix, MAT Lab,
These slides explain the two variants of the hash table-related classes, namely: non-generic (Hashtable) and generic (Dictionary) with codes on github: https://github.com/EngrMikolo/Hashtables
This slide explains three (3) basic sorting algorithms with codes on github. Bubble sort, Selection sort and insertion sort.
visit https://github.com/EngrMikolo/BasicSortingAlgorithms to checkout the codes
explanation on C# value data types and reference data types. It also explains how they are stored in the heap or stack memory.
Feel free to drop your questions and comments below.
Ethnobotany and Ethnopharmacology:
Ethnobotany in herbal drug evaluation,
Impact of Ethnobotany in traditional medicine,
New development in herbals,
Bio-prospecting tools for drug discovery,
Role of Ethnopharmacology in drug evaluation,
Reverse Pharmacology.
The Indian economy is classified into different sectors to simplify the analysis and understanding of economic activities. For Class 10, it's essential to grasp the sectors of the Indian economy, understand their characteristics, and recognize their importance. This guide will provide detailed notes on the Sectors of the Indian Economy Class 10, using specific long-tail keywords to enhance comprehension.
For more information, visit-www.vavaclasses.com
Welcome to TechSoup New Member Orientation and Q&A (May 2024).pdfTechSoup
In this webinar you will learn how your organization can access TechSoup's wide variety of product discount and donation programs. From hardware to software, we'll give you a tour of the tools available to help your nonprofit with productivity, collaboration, financial management, donor tracking, security, and more.
Unit 8 - Information and Communication Technology (Paper I).pdfThiyagu K
This slides describes the basic concepts of ICT, basics of Email, Emerging Technology and Digital Initiatives in Education. This presentations aligns with the UGC Paper I syllabus.
How to Make a Field invisible in Odoo 17Celine George
It is possible to hide or invisible some fields in odoo. Commonly using “invisible” attribute in the field definition to invisible the fields. This slide will show how to make a field invisible in odoo 17.
The Art Pastor's Guide to Sabbath | Steve ThomasonSteve Thomason
What is the purpose of the Sabbath Law in the Torah. It is interesting to compare how the context of the law shifts from Exodus to Deuteronomy. Who gets to rest, and why?
Palestine last event orientationfvgnh .pptxRaedMohamed3
An EFL lesson about the current events in Palestine. It is intended to be for intermediate students who wish to increase their listening skills through a short lesson in power point.
Students, digital devices and success - Andreas Schleicher - 27 May 2024..pptxEduSkills OECD
Andreas Schleicher presents at the OECD webinar ‘Digital devices in schools: detrimental distraction or secret to success?’ on 27 May 2024. The presentation was based on findings from PISA 2022 results and the webinar helped launch the PISA in Focus ‘Managing screen time: How to protect and equip students against distraction’ https://www.oecd-ilibrary.org/education/managing-screen-time_7c225af4-en and the OECD Education Policy Perspective ‘Students, digital devices and success’ can be found here - https://oe.cd/il/5yV
Synthetic Fiber Construction in lab .pptxPavel ( NSTU)
Synthetic fiber production is a fascinating and complex field that blends chemistry, engineering, and environmental science. By understanding these aspects, students can gain a comprehensive view of synthetic fiber production, its impact on society and the environment, and the potential for future innovations. Synthetic fibers play a crucial role in modern society, impacting various aspects of daily life, industry, and the environment. ynthetic fibers are integral to modern life, offering a range of benefits from cost-effectiveness and versatility to innovative applications and performance characteristics. While they pose environmental challenges, ongoing research and development aim to create more sustainable and eco-friendly alternatives. Understanding the importance of synthetic fibers helps in appreciating their role in the economy, industry, and daily life, while also emphasizing the need for sustainable practices and innovation.
2. ROBOTICS
Robotics is a branch of technology that deals with the design, construction and operation of
robots.
What is a robot?
A robot is a re-programmable multi-functional manipulator designed
to move materials, parts, tools, or specialized devices, through variable
programmed motions for the performance of a variety of tasks.
As stated by the Robotics Institute of America
3. INDUSTRIAL ROBOTS
Industrial robot is a robot system used for manufacturing. They are automated,
programmable and capable of movement on three or more axis.
A major reason for the growth in the use of industrial robots is their declining cost.
They are not just getting cheaper; they are becoming more effective, faster, more
accurate and more flexible.
As robots become more capable they are able to do more and more tasks that
might be dangerous or impossible for human workers to perform.
4. TERMINOLOGIES AND CONCEPTS
Frames - A frame is a reference system within which the position and orientation of a body can
be expressed.
Links - Links are individual bodies that make up a mechanism. They are mostly treated as rigid
bodies except for high speed or highly loaded mechanisms. They are connected in pairs.
Joints - the connection between two links is called a joint. It provides some physical constraints
on the relative motion between two links/members.
End-Effector - At the free end of the chain of links that make up the manipulator is the end-
effector. Depending on the intended application of the robot, the end-effector could be a
gripper, an electromagnet or any other device.
Kinematic Chain – is an assemblage of links that are connected by joints. It is called a
mechanism when one of its links is fixed to the ground.
Degrees of Freedom – is the number of independent position variables that would have to be
specified in order to locate all parts of a mechanism. It depends on the number of links, joints
and the types of joints used for construction of the mechanism. This is a general term used for
any mechanism.
5. TYPES OF JOINT
Name Description No of constraints Degrees of
freedom
revolute joint permits two paired elements to rotate with
respect to each other about an axis that is
defined by the geometry of the joint
5 1
prismatic joint allows two paired elements to slide with
respect to each other along an axis that is
defined by the geometry of the joint
5 1
cylindrical joint permits rotation about, and independent
translation along, an axis that is defined by the
geometry of the joint
4 2
helical joint allows two paired elements to rotate about,
and translate
along, an axis defined by the geometry of the
joint
5 1
spherical joint Allows one element to rotate freely with
respect to the
other about the center of the sphere in all
possible orientations.
3 3
plane pair Permits two translational degrees of freedom
along the plane of contact and a rotational
degree of freedom about an axis normal to
the plane of contact.
3 3
6. ROBOT CLASSIFICATION
Classification by degrees of freedom
Ideally, a manipulator should possess 6 degrees of freedom in order to manipulate
an object freely in three-dimensional space.
From this point of view, we call a robot a general-purpose robot if it possesses 6
degrees of freedom,
a redundant robot if it possesses more than 6 degrees of freedom, and
a deficient robot if it possesses less than 6 degrees of freedom.
7. ROBOT CLASSIFICATION
Classification by kinematic Structure
A robot is said to be a serial robot or open-loop manipulator if its kinematic
structure takes the form of an open-loop chain,
a parallel manipulator if it is made up of a closed-loop chain, and
a hybrid manipulator if it consists of both open- and closed-loop chains.
8. ROBOT CLASSIFICATION
Classification by Drive Technology
Manipulators can also be classified by their drive technology. The three popular drive
technologies are electric, hydraulic, and pneumatic.
Most manipulators use either electric dc servomotors or stepper motors, because they are
clean and relatively easy to control.
However, when high-speed or high-load-carrying capabilities are needed, hydraulic or
pneumatic drive is preferred.
A major disadvantage associated with the use of hydraulic drive is the possibility of leaking
oils. Additionally, a hydraulic drive is inherently flexible due to the bulk modulus of oil.
Although a pneumatic drive is clean and fast, it is difficult to control because air is a
compressible fluid.
9. ROBOT CLASSIFICATION
Classification by Motion Characteristics
Planar - A mechanism is said to be a planar mechanism if all the moving links in the
mechanism perform planar motions that are parallel to one another. For a planar
mechanism, the loci of all points in all links can be drawn conveniently on a plane.
Spherical - A mechanism is said to be a spherical mechanism if all the moving links perform
spherical motions about a common stationary point. In a spherical mechanism, the motions
of all particles can be described by their radial projections on the surface of a unit sphere.
Spatial - A rigid body is said to perform a spatial motion if its motion cannot be
characterized as planar or spherical motion or if at least one of the moving links in the
mechanism possesses a general spatial motion
10. ROBOT CLASSIFICATION
Classification by Workspace Geometry….
The workspace of a manipulator is the volume of space the end effector can reach.
Reachable workspace – is the volume of space within which every point can be reached by
the end effector in at least one orientation.
Dextrous workspace – is the volume of space within which every point can be reached by
the end effector in all possible orientations. As a result, the dexterous workspace is a subset
of the reachable workspace.
Mostly, the first three (3) links of a robot are primarily used for manipulating position of a
robot. It is called the arm. The remaining links for controlling the orientation of the end
effector. It is called the wrist.
The arm can assume different kinematic structures and therefore generates different work
envelopes called regional workspaces.
11. ROBOT CLASSIFICATION
Classification by Workspace Geometry
Cartesian Robot – a robot arm with three (3) mutually perpendicular prismatic joints. When
mounted on rails above its workplace, it is called a gantry robot. The regional workspace is a
rectangular box.
Cylindrical Robot – this is a cartesian robot arm with either the first or second joint replaced
by a revolute joint. The prismatic joints usually have mechanical limits on both ends. Hence
the workspace is confined by two concentric cylinders of finite length.
Spherical Robot – is a robot arm with two intersecting revolute joints in the first two joints
and a third joint which is prismatic. the workspace is confined by two concentric spheres.
Articulated Robot – is a robot arm with all three joints revolute. The workspace is very
complex. Many industrial robots are of the articulated type.
The SCARA (Selective Compliance Assembly Robot) robot is a special type of robot. It
consists of two revolute joints followed by a prismatic joint. All three joint axes are parallel to
each other and usually point along the direction of the gravity.