scholarly journals Development of Strongly Coupled Method for Interaction of Structure, Incompressible Viscous Fluid and Electrostatic Field (1st Report, Rigid Body Approximation of Structure)

2008 ◽  
Vol 74 (744) ◽  
pp. 1068-1075
Author(s):  
Daisuke ISHIHARA ◽  
Atsushi KUBOTA ◽  
Tomoyoshi HORIE ◽  
Tomoya NIHO ◽  
Shinobu YOSHIMURA
Keyword(s):  
Viscous Fluid ◽  
Rigid Body ◽  
Electrostatic Field ◽  
Incompressible Viscous Fluid ◽  
Strongly Coupled ◽  
Coupled Method

Identification of Compliant Pseudo-Rigid-Body Four-Link Mechanism Configurations Resulting in Bistable Behavior

2003 ◽  
Vol 125 (4) ◽  
pp. 701-708 ◽  
Author(s):  
Brian D. Jensen ◽  
Larry L. Howell
Keyword(s):  
Energy Storage ◽  
Rigid Body ◽  
Mechanism Design ◽  
Bistable Behavior ◽  
Strongly Coupled ◽  
Present Design ◽  
Stable Equilibria ◽  
Motion Characteristics ◽  
Bistable Mechanism ◽  
Design Challenges

Bistable mechanisms, which have two stable equilibria within their range of motion, are important parts of a wide variety of systems, such as closures, valves, switches, and clasps. Compliant bistable mechanisms present design challenges because the mechanism’s energy storage and motion characteristics are strongly coupled and must be considered simultaneously. This paper studies compliant bistable mechanisms which may be modeled as four-link mechanisms with a torsional spring at one joint. Theory is developed to predict compliant and rigid-body mechanism configurations which guarantee bistable behavior. With this knowledge, designers can largely uncouple the motion and energy storage requirements of a bistable mechanism design problem. Examples demonstrate the power of the theory in bistable mechanism design.

scholarly journals Numerical Method in Two Dimensional Boundary Layer Theory for Incompressible Viscous Fluid

2013 ◽  
Vol 38 ◽  
pp. 61-73
Author(s):  
MA Haque
Keyword(s):  
Boundary Layer ◽  
Viscous Fluid ◽  
Initial Value Problem ◽  
Shooting Method ◽  
Boundary Layer Equation ◽  
Incompressible Viscous Fluid ◽  
Initial Value ◽  
Box Scheme ◽  
Runge Kutta Method ◽  
Dimensional Boundary

In this paper laminar flow of incompressible viscous fluid has been considered. Here two numerical methods for solving boundary layer equation have been discussed; (i) Keller Box scheme, (ii) Shooting Method. In Shooting Method, the boundary value problem has been converted into an equivalent initial value problem. Finally the Runge-Kutta method is used to solve the initial value problem. DOI: http://dx.doi.org/10.3329/rujs.v38i0.16549 Rajshahi University J. of Sci. 38, 61-73 (2010)

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