On the Laplace Transform Solution of the Semi-differential Equation of Motion of a Single DOF Oscillator

Laplace Valve Stroking for Complex Piping Systems
LaPlace valve stroking to control water hammer is applied in complex piping systems with friction and without friction. Two types of system are analyzed. The law of operation of the valves...

Laplace Valve Stroking to Control Water Hammer
The method of Laplace valve stroking to control water hammer is presented. Attention is directed to the most frequently encountered of the simple systems: a single pipe originating at...

An Analytical Technique of Flow Rate Into Perforated Draintubes
The flow rate into a draintube in a saturated soil media depends on numerous characteristics such as the hole size, the number and spacing of holes, the drain size and depth. Based on...

Two Applications of Asymptotic Laplace Integrals in Structural Reliability
The concepts for asymptotic analytical solutions to so-called Laplace integrals are briefly reviewed. It is shown how integrals occurring in structural reliability can be transformed so...

Longitudinal Dispersion in Rivers: A Dead Zone Model Solution
The longitudinal dispersion of tracer material in rivers is often analyzed based on the one-dimensional convective diffusion equation developed by G.I. Taylor. However, the persistent...

A Semianalytical Method for Solving Unsteady Flow Equations
This paper proposes a method that uses conjunctively the Laplace transform for continuous time and finite element for spatial discretization to solve unsteady flow equations. Laplace transforms...

Generic Modeling--Boundary Integral Equation Method for Beam Section Properties

Transient Vibration Analysis by the Receptance Method

Transient Stress Analysis of High Energy Gas Fracture Experiments

Dispersion in Three Dimensions: Approximate Analytic Solutions
Solutions to three-dimensional convection dispersion equation under different boundary conditions are obtained by integrating the appropriate Green's functions. Two approximations...

Sum of Dependent Gamma Loads
A model for correlated sustained live loads is outlined. The live loads are assumed to be gamma distributed random variables. It is shown that already small correlations between loads...

Analysis of Creep Settlement of Pile Foundations
The problem of the settlement of a pile in a soil exhibiting creep properties is analyzed by converting the viscoelastic problem to an equivalent elastic problem by means of a Laplace...

Flow at Interface of Two Anisotropic Soil Zones
Flow-nets have proved extremely useful in solving problems of steady seepage. If the soil mass can be considered homogeneous and isotropic, it is found from Darcy.s Law and the criterion...

Exact Nonlinear Model of Wave Generation
A numerical method for solving nonlinear hydrodynamic problems of the initial value type is developed and applied in the determination of the wave motion induced by a mechanical wave generator....

Efficient Method for Solution of Viscoelastic Problems
A general method capable of solving a large range of linear viscoelastic problems is presented using a Laplace transform approach. The time-dependent problem is thus reduced to an associated...

Flexure of Thick Rectangular Viscoelastic Plates
The inertia forces may be neglected for slow loadings of viscoelastic solids, and by application of Laplace transforms, the governing equations of linear viscoelasticity may be required...

Nonuniform Diffusion of Suspended Sediment
In a recent study, Apmann and Rumer analyzed the nonuniform diffusion of suspended sediment in an open-channel flow. Experiments were performed for the situation in which a uniform open-channel...

Flow Through Spillway Flip Bucket
This paper presents two separate solutions for potential flow through circular spillway buckets. The first solution, which considers gravity effects, employs finite difference equations...

Two Solutions of Free-Surface Flow in Porous Media
The movement of the decaying free-surface mound over an aquifer of infinite depth is investigated. Because the problem involves the solution of Laplace equation with a nonlinear boundary...

 

 

 

 

Return to search