A finite element analysis of an electromagnetic flow control valve

1991 ◽  
Vol 27 (5) ◽  
pp. 3912-3915 ◽  
Author(s):  
M. Fauri ◽  
P. Sonato
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Flow Control ◽  
Control Valve ◽  
Flow Control Valve ◽  
Element Analysis ◽  
Electromagnetic Flow

Bolted Flanged Joint Creep/Relaxation Results at High Temperatures

2014 ◽  
Author(s):  
J. Adin Mann ◽  
Jeremy Hilsabeck ◽  
Cale Mckoon ◽  
Courtnee Jackson
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Control Valve ◽  
Test Sample ◽  
Element Analysis ◽  
Pipe Section ◽  
Before And After ◽  
Fea Simulation ◽  
Fea Analysis ◽  
Spiral Wound

An ASME Class 300 NPS12 flange connection between a control valve and a pipe has been evaluated at a temperature of 1100° F with testing and Finite Element Analysis (FEA). The goal of the testing was to validate the FEA simulation. The valve side of the test sample was a cast structure, the pipe side was a forged flange butt welded to a pipe section, and the gasket was a Thermiculite filled spiral wound gasket. The valve, flange, and piping material are SA-217, SA-182, and SA-335 (2 ¼ Cr – 1 Mo) steel respectively. The bolt length and flange geometry was measured before and after loading the bolts, and before and after heating the sample in order to measure changes in the bolt load and flange rotation which would indicate creep/relaxation in the joint. Tests were run with two types of bolts, B16 (SA-193) and 718 (SB-637), and also with two gasket arrangements, no gasket and then a spiral wound gasket. The results of the completed test and the correlation to an FEA analysis will be presented.

Finite element analysis-based design of a fluid-flow control nano-valve

2005 ◽  
Vol 117 (1) ◽  
pp. 53-61 ◽  
Author(s):  
M. Grujicic ◽  
G. Cao ◽  
B. Pandurangan ◽  
W.N. Roy
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Fluid Flow ◽  
Flow Control ◽  
Element Analysis ◽  
Fluid Flow Control

Statistical Evaluation of Stress Independence of Two Connected Structures

2017 ◽  
Author(s):  
Christopher R. Johnson ◽  
J. Adin Mann ◽  
Gregory D. Westwater
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Stress Analysis ◽  
Statistical Approach ◽  
Statistical Evaluation ◽  
Control Valve ◽  
Valve Design ◽  
Element Analysis ◽  
The Core ◽  
Valve Structure

In ASME B16.34, features included in a control valve geometry that allows connection to standard flanges, referred to as “flange like features”, need to be evaluated as part of the valve design analysis. An analysis approach is presented that evaluates if the stress in the region of the flange like feature is independent of the core control valve structure. When determined to be independent, then the flange like feature can be designed by rule using ASME B16.5. The approach evaluates the stress around the flange like feature with the flange at the designed location and then at an increased distance from the core control valve structure. Because the two geometries result in two different finite element analysis (FEA) meshes, a statistical approach was developed to evaluate how much the linearized stress behind the flange changes between the two different geometries. The result is a procedure and criteria to determine if the flange like feature can be designed by rule or further stress analysis is needed.

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