Use of Computer-Aided Cross-Section Construction to Validate Seismic Interpretations: An Example from the Turner Valley-Quirk Creek Area of the Canadian Rocky Mountain Foothills

AAPG Bulletin ◽  
1992 ◽  
Vol 76 ◽  
Author(s):  
MORRIS, ALAN, University of Texas,
Keyword(s):  
Cross Section ◽  
Rocky Mountain ◽  
Computer Aided

scholarly journals Challenges Faced While Designing Body in White

2021 ◽  
Vol 9 (9) ◽  
pp. 49-56
Author(s):  
Aditya Dhobale
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Cross Section ◽  
Cross Sections ◽  
Element Analysis ◽  
Computer Aided ◽  
Safety Parameters ◽  
Body In White ◽  
White Sheet ◽  
Metal Design

Abstract: Construction of Body in White (BiW) revolves around plenty of challenges. Ranging from BiW fixtures to curbing weight of Body in White sheet metal design. This paper discusses about all the design aspects in BiW manufacturing in automobile and confronting challenges that occurs. At present, lots of existing theories are being applied and efforts to improve the same are being made. This paper provides a path on how components can be developed and make necessary improvements. CAE (Computer Aided Engineering) tools have been used for FEA (Finite Element Analysis) and also an example of stress analysis of automotive chassis is given. An outcome depending on behaviour of loads acting on frame is drawn. The importance of hollow tubes, tubes of different- cross sections to counter weight and ease the designing of BiW frame have been proposed. This paper also provides insight on safety parameters with current construction of tubular frame chassis. Other solutions such as hybrid tubes, foam padding and plastic trim have been pointed out in this paper. Keywords: CAE, FEA, manufacturing, loads, tubes, cycle-time, cross-section.

scholarly journals A STUDY ON SUDDEN EXPANSION HYDRODYNAMIC PHENOMENA OCCURRING IN CYLINDRICAL PIPES

2021 ◽  
Vol 6 (4) ◽  
pp. 63-71
Author(s):  
Arestak Sarukhanyan ◽  
◽  
Garnik Vermishyan ◽  
Keyword(s):  
Cross Section ◽  
Sudden Expansion ◽  
Expansion Factor ◽  
Transitional Area ◽  
Boundary Layer Equations ◽  
Hydrodynamic Parameters ◽  
Parabolic Law ◽  
Computer Aided ◽  
Hydrodynamic Processes ◽  
Relevant Section

Introduction: This paper studies the frequency with which hydrodynamic parameters change in the sudden expansion section of axisymmetric pressure flow, based on the boundary layer equations. Methods: The suggested method reveals the regularity of changes in the hydrodynamic parameters of the flow in the transitional area, making it possible to obtain a velocity profile in any cross-section under common initial and boundary conditions. Based on the general solutions, we studied the hydrodynamic processes occurring in the transitional area of the effective sudden cross-section expansion within the axisymmetric pressure movement, in the following cases: a) when the velocity is constant at any point of the inlet face; b) when the velocity is distributed along the inlet face according to the parabolic law. Our calculations were carried out for different values of the expansion factor. Results: Based on the results of the computer-aided experimental study, we obtained velocity diagrams along the length of the transitional area with constant and parabolic velocity distributions for fluid inflowing into the expanded section. We also determined the patterns of pressure distribution along the length of the relevant section.

Modeling and analysis of traverse mechanism with eccentric gear and conjugated two-lobed non-circular gear

2016 ◽  
Vol 87 (17) ◽  
pp. 2106-2116
Author(s):  
Ying Wang ◽  
Jianneng Chen ◽  
Honglian Tao ◽  
Dehua Tao ◽  
Jian Li ◽  
...  
Keyword(s):  
Cross Section ◽  
Kinematic Model ◽  
Calculation Model ◽  
Mechanical Parameters ◽  
Analysis Program ◽  
Performance Requirement ◽  
Modeling And Analysis ◽  
Gear Drive ◽  
Computer Aided Analysis ◽  
Computer Aided

The most important performance requirement of a traverse mechanism is that the thickness of the silk package formed by the traverse mechanism is uniform or has little variation in the centre. To realize this requirement and overcome the structural shortcomings of traditional traverse mechanisms, a new kind of traverse mechanism is proposed in this paper. The proposed mechanism is characterized by a non-circular gear drive formed by an eccentric gear and a conjugated two-lobed non-circular gear. Its kinematic model is deduced, together with a calculation model for the formed shape of the silk package cross-section. Both of these models contain the influence caused by the shift motion. Based on these two models, a computer-aided analysis program for the traverse mechanism, using MATLAB, is developed and the influences of the mechanical parameters on the formed shape of the silk package are analyzed. Furthermore, the mechanical parameters based on the new traverse mechanism give a better performance when compared with the traditional mechanism.

scholarly journals Transfer relations: useful basis for computer-aided engineering of circular arch structures

2020 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Jiao-Long Zhang ◽  
Xian Liu ◽  
Yong Yuan ◽  
Herbert A. Mang ◽  
Bernhard L.A. Pichler
Keyword(s):  
Cross Section ◽  
Bending Moment ◽  
Arbitrary Cross Section ◽  
Computer Aided Engineering ◽  
Arch Bridge ◽  
Content Type ◽  
Circular Arch ◽  
Computer Aided ◽  
Arch Structures

Purpose Transfer relations represent analytical solutions of the linear theory of circular arches, relating each one of the kinematic and static variables at an arbitrary cross-section to the kinematic and static variables at the initial cross-section. The purpose of this paper is to demonstrate the significance of the transfer relations for structural analysis by means of three examples taken from civil engineering. Design/methodology/approach The first example refers to an arch bridge, the second one to the vault of a metro station and the third one to a real-scale test of a segmental tunnel ring. Findings The main conclusions drawn from these three examples are as follows: increasing the number of hangers/columns of the investigated arch bridge entails a reduction of the maximum bending moment of the arch, allowing it to approach, as much as possible, the desired thrust-line behavior; compared to the conventional in situ cast method, a combined precast and in situ cast method results in a decrease of the maximum bending moment of an element of the vault of the studied underground station by 46%; and the local behavior of the joints governs both the structural convergences and the bearing capacity of the tested segmental tunnel ring. Originality/value The three examples underline that the transfer relations significantly facilitate computer-aided engineering of circular arch structures, including arch bridges, vaults of metro stations and segmental tunnel rings.

HORSESHOES IN A NEW SWITCHING CIRCUIT VIA WIEN-BRIDGE OSCILLATOR

2005 ◽  
Vol 15 (07) ◽  
pp. 2271-2275 ◽  
Author(s):  
XIAO-SONG YANG ◽  
QINGDU LI
Keyword(s):  
Theoretical Analysis ◽  
Differential Equations ◽  
Cross Section ◽  
Poincaré Map ◽  
Modern Theory ◽  
Poincare Map ◽  
Switching Circuit ◽  
Shift Map ◽  
Computer Aided ◽  
Topological Horseshoes

In this paper we revisit a switching circuit designed by the authors and present a theoretical analysis on the existence of chaos in this circuit. For the ordinary differential equations describing this circuit, we give a computer-aided proof in terms of cross-section and Poincare map, by applying a modern theory of topological horseshoes theory to the obtained Poincare map, that this map is semiconjugate to the two-shift map. This implies that the corresponding differential equations exhibit chaos.

Experimental and computer-aided investigations and optimization of stress-relieving notches

1978 ◽  
Vol 13 (3) ◽  
pp. 149-156 ◽  
Author(s):  
W P Steinchen
Keyword(s):  
Stress Concentration ◽  
Cross Section ◽  
Maximum Concentration ◽  
Circular Cross Section ◽  
Stress Relieving ◽  
Computer Aided ◽  
Machine Elements

In many designs, it is desirable to economize in weight and minimize stress concentration. After a general demonstration of the effect of additional notches or holes in relieving the maximum concentration of stress in notched machine elements, extensive quantitative investigations were made for bars and shafts of circular cross-section subjected to tensile, bending and torsional loadings.

scholarly journals Analysis of a Feder

2015 ◽  
Vol 2 (1) ◽  
pp. 255-274
Author(s):  
Ferenc Rádi
Keyword(s):  
Finite Element ◽  
Closed Form ◽  
Cross Section ◽  
Computer Analysis ◽  
Input Data ◽  
Real Life ◽  
Critical Cross Section ◽  
Analytical Mechanics ◽  
Computer Aided ◽  
The Cross

This paper covers an analysis in the cross section of sword fencing and the field of analytical mechanics and computer analysis. It aims to get answer to following questions in case of a normal blow with a feder on another feder: where are critical cross section/sections, where is the biggest stress, might the feder maybe break or not? To inspect this question a model for the feder was created in a reliable, realistic, simple and closed form. Modeling a single blow acceleration and speed state at the chosen time will be calculated. Based on this input data equations and conclusions from the analytical mechanics were applied, where D’Alamberts principle is used. Results will be validated by finite element computer aided modeling and also applied on specified real life cases.

scholarly journals Analysis of a Feder

2015 ◽  
Vol 2015 (2) ◽  
pp. 300-318
Author(s):  
Ferenc Rádi
Keyword(s):  
Finite Element ◽  
Closed Form ◽  
Cross Section ◽  
Computer Analysis ◽  
Input Data ◽  
Real Life ◽  
Critical Cross Section ◽  
Analytical Mechanics ◽  
Computer Aided ◽  
The Cross

Abstract This paper covers an analysis in the cross section of sword fencing and the field of analytical mechanics and computer analysis. It aims to get answer to following questions in case of a normal blow with a feder on another feder: where are critical cross section/sections, where is the biggest stress, might the feder maybe break or not? To inspect this question a model for the feder was created in a reliable, realistic, simple and closed form. Modeling a single blow acceleration and speed state at the chosen time will be calculated. Based on this input data equations and conclusions from the analytical mechanics were applied, where D’Alamberts principle is used. Results will be validated by finite element computer aided modeling and also applied on specified real life cases.

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