Space Truss
The International Space Station will be more than 310 ft (94 m) long when it is completed sometime in the next decade. The backbone of the structure is a hexagonal truss system that will...

Towers in Motion (available in Structural Engineering Special Section only)
Undersea towers are typically designed to rigidly resist the forces of water and wind. But one type of tower is designed to be flexible and, rather than rely on its platform strength to...

Nonlinear Inertial Loading in Steep 2-D Water Waves

Transport and Separation of Particles by Chaotic Advection

Discrimination Between Inertial and Macroviscous Flows of Fine-Grained Debris with a Rolling-Sleeve Viscometer

Dynamics of Debris Flows in the Inertial Regime

Normalized Rheological Behaviour of Fine Muds and Their Flow Properties in a Pseudoplastic Regime

An LPI Numerical Implicit Solution for Unsteady Mixed-Flow Simulation
A Local Partial Inertia (LPI) technique is developed as an option within the National Weather Service (NWS) FLDWAV dynamic flood routing model to enhance its capability to model unsteady...

Effective Moment of Inertia of Elasto-Plastic Beams

Calculation of Inertial Force, Shear Force and Frictional Resistance of Unsteady Flow in a Tidal Marsh Slough

Navigation of an Autonomous Robot Vehicle
The U.S. Air Force has developed an autonomous excavator capable of performing a variety of tasks at various Department of Defense facilities. Common to all the tasks is the need for autonomous...

Navigation of Autonomous Mobile Robots
An integrated navigational system for autonomous mobile robots features a primary navigator, such as an inertial navigation or a dead-reckoning system, and a secondary navigator. The secondary...

Inertially Favorable Trajectories for Robot Motion in Space
Robot manipulators generally display non-linear coupled dynamic forces which increase with speed. Efficiencies can be achieved by finding trajectories which take advantage of those inertial...

A Novel Gravity Compensation System for Space Robots
Realistic experimental investigation of the behavior of space robots requires simulation on earth of the micro-gravity environment existing in space. This is particularly true due to the...

Reoperation of Existing Reservoirs to Serve Changing Needs: Observations on Institutional Inertia, Conflict, and Efficiency
The 'reoperation' of a reservoir system may in some circumstances provide a non-structural alternative for addressing changing water storage needs resulting from population growth or other...

Plain flooding: near field and far field simulations
The paper deals with the problems met in the attempt of simulating the plain submersion produced by a levee breaking in the inertia dominated region (near field), scaling with the typical...

Two Basic Concepts in Offshore Engineering
Two concepts are developed which lead to an improved understanding of the characteristics of the wave forces that act on deep-water, jacket-type offshore structures. The first concept...

Nonlinear Behavior of Thin Slender Free Surface Non-Newtonian Elliptical Rings
This paper analyzes the nonlinear motion of a slender concentric thin elliptical ring of an incompressible, non-Newtonian fluid. This study includes the physical effects of surface tension,...

Structural Design of the GN&C Navigation Base for the Space Station Freedom
The Space Station Freedom (SSF) pointing accuracy budget requires that the Guidance, Navigation and Control hardware maintain alignment within ± 0.1 degrees of arc. The ring laser gyros...

Precision Lysimetry in France
After a definition of the parameters to be measured, a possible reasoning is presented for the construction of a weighing lysimeter. A number of factors have to be taken in account: the...

 

 

 

 

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