Development of Design Rules for Three-Segment Pipe Clamp Connectors

2014 ◽  
Author(s):  
David O. Bankston ◽  
Hsin Kuo
Keyword(s):  
Pressure Vessel ◽  
Parametric Design ◽  
Department Of Energy ◽  
Design Rule ◽  
Design Rules ◽  
Rule Based ◽  
Washington State University ◽  
Rule Set ◽  
Section Viii ◽  
Rule Based Approach

The design rules for clamped connections in the ASME Boiler and Pressure Vessel Code (Section VIII, Div. I, Appendix 24) were developed for two-segment clamp connectors and must be modified to accommodate alternative clamp configurations. Developing a simplified rule-based model for predicting three-segment pipe clamp connectors (3-PCC)connector pressure capacities will greatly simplify the evaluation of 3-PCC connectors. The first goal of this paper is to develop a general parametric design rule set for multiple-clamp-segment pipe by expanding upon the published requirements of the ASME Boiler and Pressure Vessel Code for two-segment pipe clamp connectors and pipe flanges using basic principles. The next goal is to apply the design rule set to a typical 3-PCC design and to summarize the rules. The results of this paper provide a parametric rule-based approach to evaluating the pressure capacity of a 3-PCC. This paper has been developed in partial fulfillment of the requirements for the Master’s Degree Program at Washington State University. This work is performed in support of the US Department of Energy, under contract to Bechtel National Inc., # DE-AC27-01RV14136.

scholarly journals Automating Terrain Texturing in Real-Time Using a Rule-Based Approach

2010 ◽  
Vol 9 (4) ◽  
pp. 21-28
Author(s):  
John Ferraris ◽  
Christos Gatzidis ◽  
Feng Tian
Keyword(s):  
Real Time ◽  
Rule Based ◽  
Novel Approach ◽  
Great Performance ◽  
Rule Set ◽  
Complex Features ◽  
Rule Based Approach

This publication proposes a novel approach to automatically colour and texture a given terrain mesh in real time. Through the use of weighting rules, a simple syntax allows for the generation of texture and colour values based on the elevation and angle of a given vertex. It is through this combination of elevation and angle that complex features such as ridges, hills and mountains can be described, with the mesh coloured and textured accordingly. The implementation of the approach is done entirely on the GPU using 2D lookup textures, delivering a great performance increase over typical approaches that pass colour and weighting information in the fragment shader. In fact, the rule set is abstracted enough to be used in conjunction with any colouring/texturing approach that uses weighting values to dictate which surfaces are depicted on the mesh

New Common Design Rules for U-Tube Heat Exchangers in ASME, CODAP and UPV Codes

2002 ◽  
Author(s):  
F. Osweiller
Keyword(s):  
Heat Exchangers ◽  
Pressure Vessels ◽  
Design Rule ◽  
Technical Approach ◽  
Design Rules ◽  
Asme Code ◽  
European Code ◽  
Section Viii ◽  
Technical Basis ◽  
Year 2000

In year 2000, ASME Code (Section VIII – Div. 1), CODAP (French Code) and UPV (European Code for Unfired Pressure Vessels) have adopted the same rules for the design of U-tube tubesheet heat exchangers. Three different rules are proposed, based on different technical basis, to cover: • Tubesheet gasketed with shell and channel. • Tubesheet integral with shell and channel. • Tubesheet integral with shell and gasketed with channel or the reverse. At the initiative of the author, a more refined technical approach has been developed, to cover all tubesheet configurations. The paper explains the rationale for this new design rule which is being incorporated in ASME, CODAP and UPV in 2002. This is substantiated with comparisons to TEMA Standards and a benchmark of numerical comparisons.

Tubesheet Heat Exchangers: New Common Design Rules in UPV, CODAP, and ASME

2000 ◽  
Vol 122 (3) ◽  
pp. 317-324 ◽  
Author(s):  
Francis Osweiller
Keyword(s):  
Pressure Vessel ◽  
Heat Exchangers ◽  
Theoretical Basis ◽  
General Context ◽  
Design Rules ◽  
Analytical Basis ◽  
Section Viii

French CODAP rules devoted to tubesheet heat exchangers were adopted in the 1990s, for the European Unfired Pressure Vessel Standard (UPV). ASME Section VIII—Div. 1 rules issued in July 1998 are based on a similar approach. At the initiative of the author, who is a member of CODAP, UPV, and ASME respective Committees on Heat Exchangers, it has been decided to make the tubesheet design rules of these three codes as consistent as possible. This paper presents the various aspects of this harmonization that covers both the theoretical basis of the rules and the editorial aspect (use of common notations, common tubesheet configurations, common terminology, etc). The main analytical basis of these rules, and their differences are explained. Numerical benchmark calculations, performed on real heat exchangers, outline the significant improvements due to the consistency, with a comparison to current TEMA rules. Use of these common rules in the coming years, both in US and Europe, is discussed in the general context of globalization of the market. [S0094-9930(00)01003-9]

Proposed External Pressure Design Rules for Pressure Vessels for Human Occupancy

1980 ◽  
Vol 102 (4) ◽  
pp. 223-229
Author(s):  
J. R. Maison ◽  
E. M. Briggs
Keyword(s):  
Pressure Vessel ◽  
External Pressure ◽  
Pressure Vessels ◽  
Design Rules ◽  
Mathematical Development ◽  
Work Systems ◽  
Safety Code ◽  
Section Viii

The safety of externally pressurized manned diving bells, submersibles and underwater work systems resides in the ability of the system to rise to the surface in case of an emergency. Use of the ASME Boiler and Pressure Vessel Code Section VIII design rules, lead to unacceptably heavy structures, and thus substantially compromise the sought-for safety in underwater manned systems. A recognition on the part of the diving industry of the inherent limitations in using the ASME Boiler and Pressure Vessel Code for design of underwater pressure vessels, motivated the formation of the ASME Safety Code Committee on Pressure Vessels for Human Occupancy (PVHO) in 1974. A subcommittee of the PVHO Safety Code Committee was formed to address the specific problems of external pressure vessel design. The mathematical development which provided the basis for the proposed rules are presented. The restrictions imposed by the External Pressure Subcommittee are also presented.

scholarly journals A Mixed-principle Rule-based Approach to the Automatic Syllabification of Serbian

2019 ◽  
Vol 59 (1) ◽  
Author(s):  
Aniko Kovač ◽  
Maja Marković
Keyword(s):  
Statistical Data ◽  
Native Speakers ◽  
Rule Based ◽  
Rule Set ◽  
Rule Based Approach ◽  
Traditional Grammar ◽  
Automatic Syllabification

In this paper, we present a mixed-principle rule-based approach to the automatic syllabification of Serbian, based on prescriptive rules from traditional grammar in combination with the Sonority Sequencing Principle. We explore the problems and limitations of the existing rule set and sonority-based approaches, introduce an algorithm that utilizes both means in an attempt to produce a more accurate segmentation of words into syllables that is better aligned with the intuition of the native speakers, and present the statistical data related to the distribution of syllables and their structure in Serbian.

A Brief Survey on Text Classification Using Various Machine Learning Techniques

2018 ◽  
Vol 8 (1) ◽  
pp. 14
Author(s):  
Padmavathi .S ◽  
M. Chidambaram
Keyword(s):  
Machine Learning ◽  
Text Classification ◽  
Fixed Number ◽  
Machine Learning Techniques ◽  
Online Information ◽  
Rule Based ◽  
Learning Techniques ◽  
Machine Learning Approach ◽  
Rule Based Approach

Text classification has grown into more significant in managing and organizing the text data due to tremendous growth of online information. It does classification of documents in to fixed number of predefined categories. Rule based approach and Machine learning approach are the two ways of text classification. In rule based approach, classification of documents is done based on manually defined rules. In Machine learning based approach, classification rules or classifier are defined automatically using example documents. It has higher recall and quick process. This paper shows an investigation on text classification utilizing different machine learning techniques.

MRI Brain Tumor Image Analysis Using Fuzzy Rule based Approach

2019 ◽  
Vol 50 (2) ◽  
pp. 98-112 ◽  
Author(s):  
KALYAN KUMAR JENA ◽  
SASMITA MISHRA ◽  
SAROJANANDA MISHRA ◽  
SOURAV KUMAR BHOI ◽  
SOUMYA RANJAN NAYAK
Keyword(s):  
Image Analysis ◽  
Brain Tumor ◽  
Fuzzy Rule ◽  
Rule Based ◽  
Mri Brain ◽  
Rule Based Approach

Rule-based Approach to Semantic Resolution of Chinese Addresses

2010 ◽  
Vol 12 (1) ◽  
pp. 9-16 ◽  
Author(s):  
Xueying ZHNAG ◽  
Guonian LV ◽  
Boqiu LI ◽  
Wenjun CHEN
Keyword(s):  
Rule Based ◽  
Semantic Resolution ◽  
Rule Based Approach

An Automatic Question Generation System using Rule-Based Approach in Bloom’s Taxonomy

2019 ◽  
Vol 13 ◽  
Author(s):  
G Deena ◽  
K Raja ◽  
K Kannan
Keyword(s):  
Language Processing ◽  
Learning Process ◽  
Question Generation ◽  
Test Question ◽  
Rule Based ◽  
Part Of Speech ◽  
Core Idea ◽  
Rule Based Approach ◽  
Teaching Learning ◽  
Automatic Question Generation

: In this competing world, education has become part of everyday life. The process of imparting the knowledge to the learner through education is the core idea in the Teaching-Learning Process (TLP). An assessment is one way to identify the learner’s weak spot of the area under discussion. An assessment question has higher preferences in judging the learner's skill. In manual preparation, the questions are not assured in excellence and fairness to assess the learner’s cognitive skill. Question generation is the most important part of the teaching-learning process. It is clearly understood that generating the test question is the toughest part. Methods: Proposed an Automatic Question Generation (AQG) system which automatically generates the assessment questions dynamically from the input file. Objective: The Proposed system is to generate the test questions that are mapped with blooms taxonomy to determine the learner’s cognitive level. The cloze type questions are generated using the tag part-of-speech and random function. Rule-based approaches and Natural Language Processing (NLP) techniques are implemented to generate the procedural question of the lowest blooms cognitive levels. Analysis: The outputs are dynamic in nature to create a different set of questions at each execution. Here, input paragraph is selected from computer science domain and their output efficiency are measured using the precision and recall.

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