Computer Aided Modelling and Design of Mechanical Configuration of an Inspection Robot

2015 ◽  
Vol 766-767 ◽  
pp. 1015-1020
Author(s):  
G. Shanmugasundar ◽  
M. Rajmohan ◽  
R. Sivaramakrishnan
Keyword(s):  
Research Effort ◽  
Major Elements ◽  
Vital Role ◽  
Nuclear Industry ◽  
Design Calculation ◽  
Human Errors ◽  
Inspection Robot ◽  
Hazardous Environments ◽  
Computer Aided ◽  
Design Calculations

Robots are playing a vital role in now a day in the field of manufacturing and component inspection. In general the hazardous environments as nuclear waste disposal, robots are really a high demand machine as an implementation of automation concepts that helpful to rectify the human errors and give more safety. In a view to meet such needs, this paper features the optimized new design of mechanical configuration of the robot suitable for inspection of outer surface welds present in the steel storage canister at nuclear industry with the help of NDT equipment. The effective utilization of universal joints and screw jack mechanisms at the base gives the higher order of degree of freedom when compare with currently available robots. The selection of the mechanical components and its comparison with the existing method is explained in brief. This paper describes the successive design calculations of major elements of manipulator. Generally, the purpose of this paper is to describe the importance of computer aided modelling of a robot mechanism and also state the advantage of development of software coding for difficult manual design. The MATLAB program was utilized to perform the automatic design calculation of manipulator Parts which gives the added advantage for this research effort.

Computer Aided Modelling and Static Analysis of an Inspection Robot

2015 ◽  
Vol 766-767 ◽  
pp. 1055-1060
Author(s):  
G. Shanmugasundar ◽  
R. Sivaramakrishnan ◽  
R. Sridhar ◽  
M. Rajmohan
Keyword(s):  
Static Analysis ◽  
Robot Manipulator ◽  
Research Work ◽  
Nuclear Industry ◽  
Nuclear Waste Storage ◽  
Design Procedures ◽  
Inspection Robot ◽  
Waste Storage ◽  
Computer Aided ◽  
The Stability

This paper describes the method for computer aided modelling of the newly designed robot with the aid of 3D modelling software. The static analysis of the designed robot also done by using the analysis software. The conventional design procedures of the elements of the mechanical configurations of the robot base and arm explained in exhaustive manner. Nuclear waste storage steel canisters are often required regular maintenance and surface inspection in order to ensure the goodness of the canisters. In this research work also the designed robot is doing the same task with the help of NDT system available at the end of the arm. However, these types of robot manipulators suffer from different payload capacity and relatively some amount of end point deflections. Through the static analysis the stability of the robot manipulator is proved. This paper features the optimized new design of mechanical configuration of the robot suitable for inspection of outer surface welds present in the steel storage canister at nuclear industry with the help of NDT equipment. The effective utilization of knuckle joints and screw jack mechanisms at the base gives the higher order of degree of freedom when compare with currently available robots.

Research and Study of Gear Class Components Parametrization Based on AutoCAD

2013 ◽  
Vol 273 ◽  
pp. 217-220
Author(s):  
Jian Li
Keyword(s):  
Design Concept ◽  
Design Calculation ◽  
Control Language ◽  
Computer Aided ◽  
Complete Automation ◽  
Auto Cad ◽  
Parameterization Design

For achieved gear class parts of design calculation and drawing of automation, the paper proposed the parameterization design concept ideas, Using Auto-CAD Visual LISP language and Dialog control language (DCL) to design dialog box, realized parameters input with dialog through programmatic, and design and calculation of gear parts, parameters, proofing and gear designs drawn with different structures, output complete automation computer aided system

scholarly journals Reconfigurable platform for 3D-panoramic telepresence system for mobile applications

2021 ◽  
Author(s):  
Artur Saakov
Keyword(s):  
High Performance ◽  
Outer Space ◽  
Nuclear Industry ◽  
Human Beings ◽  
Reconfigurable Logic ◽  
Logic Devices ◽  
Hazardous Environments ◽  
High Bandwidth ◽  
Reconfigurable Platform ◽  
Bomb Disposal

The concept of telepresence allows human beings to interact with hazardous environments and situations without facing any actual risks. Examples include the nuclear industry, outer space and underwater operations, mining, bomb disposal and firefighting. Recent progress in digital system technology, especially in technology of reconfigurable logic devices (e.g. FPGA), allows the effective implementation of advanced embedded systems characterized by high-performance data processing and high-bandwidth communication. However, most of the existing telepresence systems do not benefit from these advancements. Therefore, the goal of this work was to develop a concept and architecture of the platform for the 3D-Panoramic Telepresence System for mobile robotic applications based on reconfigurable logic devices. During the development process, two versions of the system were implemented. The first system focused on feasibility testing of major components of the proposed architecture. Based on the experimental results obtained on the first prototype of the system and their analyses, a set of recommendations were derived for an updated version of the system. These recommendations were incorporated into the implementation of the second and final version of the system.

scholarly journals Survey on machine learning algorithms for liver disease diagnosis and prediction

2018 ◽  
Vol 7 (1.8) ◽  
pp. 99 ◽  
Author(s):  
M Kiran Kumar ◽  
M Sreedevi ◽  
Y C. A. Padmanabha Reddy
Keyword(s):  
Machine Learning ◽  
Liver Disease ◽  
Learning Algorithms ◽  
Disease Diagnosis ◽  
Computer Aided Diagnosis ◽  
Vital Role ◽  
Machine Learning Algorithms ◽  
Machine Learning Techniques ◽  
Computer Aided ◽  
Aided Diagnosis

Machine learning plays a vital role in health care industry. It is very important in Computer Aided Diagnosis. Computer Aided Diagnosis is a quickly developing dynamic region of research in medicinal industry. The current specialists in machine learning guarantee the enhanced precision of discernment and analysis of diseases. The computers are empowered to think by creating knowledge by learning. This procedure enables the computers to self-learn individually without being explicitly programed by the programmer .There are numerous sorts of Machine Learning Techniques and which are utilized to classify the data sets. They are Supervised, Unsupervised and Semi-Supervised, Reinforcement, deep learning algorithms. The principle point of this paper is to give comparative analysis of supervised learning algorithms in medicinal area and few of the techniques utilized as a part of liver disease prediction.

Design Review of the VVER-440 NPP Main Components on the Base of ASME BPVC

2009 ◽  
Author(s):  
Ja´nos Boros ◽  
Tama´s Pa´lfi ◽  
Pe´ter Pa´lfi ◽  
Sa´ndor Ra´tkai
Keyword(s):  
Power Plant ◽  
Nuclear Power Plant ◽  
Nuclear Power ◽  
Design Calculation ◽  
Design Review ◽  
Key Points ◽  
Asme Code ◽  
Main Components ◽  
Design Calculations ◽  
General Standard

Complying to the regulatory body’s need complete design review was made for the Hungarian VVER 440/213 units’ main components. It was necessary, because only the most important components had design calculation for 30 years of operation — in this case the task was to make new calculation including the key-points from the original and justify 50 years operation —, while some of the components had no or poorly documented design calculations. According to these facts documentation needed to be completed for some components, TLAA had to be made for 50 years, and the NPP decided to have ASME code as the basic of the general standard in the future. For these three reasons Paks Nuclear Power Plant decided to make a complete design review for all class1 and class2 components on the base of ASME BPVC code. Article shows the major problems and the possible solutions while moving from PNAE [2] regulation to ASME code.

Inverse or Design Calculations for Non-Potential Flow in Turbomachinery Blade Passages

1981 ◽  
Author(s):  
W. T. Thompkins ◽  
Siu Shing Tong
Keyword(s):  
Pressure Distribution ◽  
Potential Flow ◽  
Three Dimensional ◽  
Viscous Flows ◽  
Geometric Constraints ◽  
Design Calculation ◽  
Compressor Cascade ◽  
Surface Pressure Distribution ◽  
Blade Row ◽  
Design Calculations

A new inverse or design calculation procedure has been devised for non-potential flow fields and has been applied to turbomachinery blade row design. This technique uses as input quantities the surface pressure distribution and geometric constraints and may be used for two- or three-dimensional flows as well as inviscid or viscous flows. If a geometry satisfying both the constraints and the pressure distribution cannot be found, a solution satisfying the constraints and a relaxed pressure distribution is found. Calculational examples are presented for inviscid supersonic compressor cascade designs and the extension to three-dimensional flows discussed.

scholarly journals Automated Soil Nutrient Content Analysis and Fertilizer Suggestion for Farmers

2019 ◽  
Vol 8 (4) ◽  
pp. 12830-12833
Keyword(s):  
Human Error ◽  
Soil Nutrient ◽  
Nutrient Content ◽  
Vital Role ◽  
Test Results ◽  
Human Errors ◽  
Nutrient Analysis ◽  
Analysis Process ◽  
Soil Nutrient Content ◽  
Sowing Period

In India agriculture and its practices plays the vital role, since more number of people are employed in that process. The agricultural process goes on with the sowing, maintenance and yield. The yield of the crop purely depends on the season, maintenance and the nutrient content available in the soil. Soil nutrient analysis has been made before sowing period with the help of soil testing laboratory, based on the laboratory results and the selected crops. End of the analysis process the fertilizer suggestion would be given to the farmer. In the existing system the analysis process is done manually and farmers would be given direct suggestion about the fertilizer. Since the process is repetitive it consumes more time and there may be chance of human error which may majorly affect the yield. The main aim of the proposed work is to design an Automated Fertilizer Suggestion (AFS) application to give effective suggestions to farmers about the fertilizers with respect to crops based on the soil test results. Our proposed application reduces the time, controls the human errors, avoids the over dumping of fertilizer in the soil and improves the yield.

scholarly journals Design Calculation for A (G +10) Building (Encode Steel)

2021 ◽  
pp. 334-345
Author(s):  
E. Iniyan ◽  
P. A Prabakaran
Keyword(s):  
Seismic Load ◽  
Live Load ◽  
Design Calculation ◽  
Architectural Drawings ◽  
Dead Load ◽  
Soft Storey ◽  
Steel Sections ◽  
Technical Details ◽  
Design Calculations ◽  
Spread Sheet

The proposed steel building at Mumbai consisting of G+10 storeys, has a built-up area of about 165m2. The typical floor height is 3m above GL and the total height of the building above GL is 33m.Withreference to given plan, the architectural drawings and structural drawings showing plan, elevation, sectional views and connection drawings are drawn by using AUTOCAD 2017.Design calculations (Dead Load, Live Load, Wind Load, Seismic Load) are calculated manually-As per IS codes which are mentioned in technical details. The rolled steel sections for beam and column has been chosen from IS 12778:2004. High tensile steel grade-E350BR has been used for steel sections. And, the analysis of structure is done by using STAAD.Pro V8i SS5.Design of beam and column are manually calculated-As per IS: 800-2007. And, spread sheet has been created to check the beam and column, whether it is safe or not. The connection designs are calculated-As per IS codes by using Welding-As per IS 9595-1996 and Fasteners-As per IS 3757-1985. Bracings are provided in the ground floor between the column to avoid soft storey failure. The material requirements are mentioned based on the design calculations. The total estimation of the building is 1.11cr.

Computer Aided Design of Mixed Flow Turbines for Turbochargers

1979 ◽  
Vol 101 (3) ◽  
pp. 440-448 ◽  
Author(s):  
N. C. Baines ◽  
F. J. Wallace ◽  
A. Whitfield
Keyword(s):  
Mass Flow ◽  
Computer Aided Design ◽  
High Speed ◽  
Three Dimensional ◽  
Flow Characteristics ◽  
Design Procedure ◽  
Mixed Flow ◽  
Computer Aided ◽  
Design Calculations ◽  
Aided Design

The paper describes a comprehensive computer aided design procedure and its use to investigate mixed flow turbines for automotive turbocharger applications. The outside dimensions of rotor and casing as well as blade angles are determined from one-dimensional design and off design calculations, the detailed blade shape from quasi-three-dimensional analysis and mechanical stressing and vibration programs, and geometric data are presented as outside views and sections of the rotor by a graphics subroutine. The procedure consists of a series of separate programs rather than a single program, so that the designer’s intervention at each stage of the process can be applied. Two mixed flow rotors were designed, manufactured and tested in a specially designed high speed dynamometer. The first was intended to achieve a substantial increase in mass flow over the reference radial rotor without loss of efficiency, while the latter was intended as a direct replacement of the reference radial rotor, but should give more favorable pulse performance when operating in conjunction with an engine due to changes in the operating map viz: a) lower tip speeds for best efficiency, and b) flatter mass flow characteristics. Both effects were predicted by analysis and confirmed by tests.

Direct Integration of Axial Turbomachinery Preliminary Aerodynamic Design Calculations in Engine Performance Component Models

2018 ◽  
Author(s):  
Ioannis Kolias ◽  
Alexios Alexiou ◽  
Nikolaos Aretakis ◽  
Konstantinos Mathioudakis
Keyword(s):  
Axial Flow ◽  
Engine Performance ◽  
Single Step ◽  
Design Calculation ◽  
Aerodynamic Design ◽  
Performance Modelling ◽  
Engine Design ◽  
And Performance ◽  
Design Calculations ◽  
Component Models

In the context of an engine design calculation, isentropic or polytropic efficiencies of turbomachinery components are assumed at the outset of the cycle analysis and their values are updated or validated following the aerodynamic design of the components. In the present paper, aerodynamic design calculations of axial-flow compressors and turbines are directly integrated into the corresponding performance component models. This creates a consistent, single-step preliminary design and performance modelling process using a relatively small number of physical and geometric inputs. The aerodynamic design for establishing a component’s overall efficiency is accomplished through a mean-line, stage-by-stage approach where the stagewise isentropic efficiency is calculated employing either loss or semi-empirical correlations. From this process, the stagewise flow annulus radii are also obtained and are used to axially size the component stages assuming the blade aspect ratio and axial gapping distributions. The component flowpath geometry is then produced by simply “stacking” axially the component stages. The developed method is validated against publicly available data for a high-pressure compressor and a low-pressure turbine. Finally, the effectiveness of the method is demonstrated by considering the multi-point design of a High Bypass Ratio Geared Turbofan Engine with bypass Variable Area Nozzle.

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