Mass minimization of dynamically loaded machine foundations using different subsoil models

• Autorzy: Sienkiewicz Z. , Wilczyński B.

Warianty tytułu

PL

Solid Mechanics Conference ; SolMec'98 (32nd ; 01-05.09.1998 ; Zakopane, Poland)

• Języki publikacji: EN

Abstrakty

EN

The effect of variation of the shear wave velocity profile of a layered soil a minimal mass of a rigid machine fountation under behaviour constraints on vibration and normal stress compact amplitudes and side constraints is numerically studied. The nonlinear programming problem has been solved by an iterative application of a sequential linear programming. The dynamic response of the machine foundation to unbalanced forces is evaluated including the dynamic soil-block interaction. The mixed-boundary value problem of elastodynamics was formulated as the system of Fredholm integral equations of the first kind with the Green's functions for a half-space as kernels and concact tractions as unknowns. The solution of the integral equations was accomplished numerically by a Boundary Element Method. In addition, the effect of embedment of the block into the soil was included by means of a local dynamic boundary used to simulate the backfill. Numerical results illustrate the sensitivity of the optimum design with respect to variations in problem preassigned parameters.

Słowa kluczowe

EN

machine foundation; soil medium

PL

fundament maszyny; podłoże gruntowe

• Wydawca: Instytut Podstawowych Problemów Techniki PAN
• Czasopismo: Engineering Transactions
• Rocznik: 1999
• Tom: Vol. 47, iss. 2
• Strony: 183--201
• Opis fizyczny: Bibliogr. 21 poz., rys.

Twórcy

autor

Sienkiewicz Z.

autor

Wilczyński B.

• Technical University of Koszalin [Politechnika Koszalińska], ul. Racławicka 15/17, Koszalin, Poland,