Efficient Solution and Sensitivity Analysis of Partial Differential-Algebraic Equation Systems

2005 ◽  
Vol 152 (8) ◽  
pp. B277 ◽  
Author(s):  
J. R. Gray ◽  
C. Homescu ◽  
L. R. Petzold ◽  
R. C. Alkire
Keyword(s):  
Sensitivity Analysis ◽  
Algebraic Equation ◽  
Efficient Solution ◽  
Differential Algebraic Equation ◽  
Partial Differential

Time Efficient Solution of Phase Equilibria in Dynamic and Distributed Systems with Differential Algebraic Equation Solvers

2013 ◽  
Vol 52 (5) ◽  
pp. 2130-2140 ◽  
Author(s):  
Øivind Wilhelmsen ◽  
Geir Skaugen ◽  
Morten Hammer ◽  
Per Eilif Wahl ◽  
John Christian Morud
Keyword(s):  
Distributed Systems ◽  
Phase Equilibria ◽  
Algebraic Equation ◽  
Efficient Solution ◽  
Differential Algebraic Equation

Investigation of Sensitivity Effect Based on Mass and Stiffness Modification in Automobile Crankshaft

2015 ◽  
Vol 752-753 ◽  
pp. 839-844
Author(s):  
R.M.S. Zetty ◽  
B.A. Aminudin ◽  
L.M. Aung ◽  
M.K. Khalid ◽  
H.M.Y. Norfazrina ◽  
...  
Keyword(s):  
Sensitivity Analysis ◽  
Natural Frequency ◽  
Dynamic Characteristics ◽  
Differential Analysis ◽  
Partial Differential ◽  
Mechanical Parts ◽  
Stiffness Reduction ◽  
Experiment And Simulation ◽  
Good Agreement

A modeling through sensitivity analysis is one of the promising methods to investigate the dynamic characteristics of complex mechanical parts. This study aimed to investigate the effect of sensitivity based on mass and stiffness modification in automobile crankshaft as a function of natural frequency. Verification for the crankshaft model that is used in the experiment and simulation was done and both results showed good agreement and small errors percentage. The modification was also done by reducing the different percentage of crankshaft’s mass and stiffness. Partial differential analysis was used in the sensitivity analysis in order to figure out the natural frequency after every set of modification. According to the results, we also found that there were changes of sensitivity value by changes in mass value but the stiffness value remains unchanged. However, there is no significant effect of stiffness reduction on vibration was found in this research.

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