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Each of the SDOF systems generates a sine wave with a random phase relative to the other SDOF systems.
Did the earth move for you? (Vibration Test)
The method is intended to be compatible with dynamic SDOF blast analyses of plate-like structures possessing elastic global response.
Analysis Method for Reinforcing Circular Openings in Isotropic Homogeneous Plate-Like Structures Subjected to Blast Loading
The procedure, synthesized in Figure 1(a), evaluates the mechanical characteristics of the dissipative bracing system first for the equivalent SDOF system and then determines the characteristics of the braces along the building elevation.
Seismic Retrofit of Reinforced Concrete Frame Buildings with Hysteretic Bracing Systems: Design Procedure and Behaviour Factor
Seismic design spectra corresponding to single-degree-of-freedom systems (SDOFS) are commonly used in structural engineering for the design of multi-degree-of-freedom structures (MDOFS).
Evaluation of the response of posttensioned steel frames with energy dissipators using equivalent single-degree-of-freedom systems
[d.sup.*.sub.t]: Target displacement of equivalent SDOF system
Base Isolation for Seismic Retrofitting of a Multiple Building Structure: Design, Construction, and Assessment
From the perspective of mathematical principles, the classic skyhook control principle is used to control a SDOF system with one skyhook damper.
Fractional Critical Damping Theory and Its Application in Active Suspension Control
The program incorporates four SDOF curve-fitting algorithms: Peak Picking (PP), Circle Fit (CF), Line Fit (LF) and Direct Modal Estimation (DME) as well as two MDOF algorithms: Frequency Domain Decomposition by Peak Picking (FDD-PP) and its Enhanced version (EFDD).
Modal analysis of bridge structures by means of forced vibration tests/Tilto konstrukciju modaline analize taikant priverstines vibracijos testus
In the calculation, the load and damping in the equation of motion of the SDOF system are assumed to be 0.
Parameter Sensitivity of Shallow-Bias Tunnel with a Clear Distance Located in Rock
And twenty-one SDOF systems are designed according to the DBSD procedure and analyzed to indicate that the proposed equivalent damping relationships are suitable for the DBSD.
Stochastic Response Characteristic and Equivalent Damping of Weak Nonlinear Energy Dissipation System under Biaxial Earthquake Action. (Research Article)
In the next step of validation of the FE analysis, maximum blast response of the equivalent single-degree-of-freedom (SDOF) system of the considered RC beam (without axial force) was calculated using UFC-3-340-02 [19] methodology (Chapters 3 and 4).
Investigation of Axial Strengthened Reinforced Concrete Columns under Lateral Blast Loading
Let us consider a SDOF system subjected to a sudden stiffness reduction under impulse excitation.
Damage detection on sudden stiffness reduction based on discrete wavelet transform
where [T.sub.e] is the effective fundamental period of the building in the direction under consideration; [S.sub.a] is the response spectrum acceleration coefficient corresponding to the effective fundamental period; [C.sub.0] accounts for the difference between the roof displacement of an MDOF building and the displacement of the equivalent SDOF system; [C.sub.1] is the modification factor to account for the difference between the maximum elastic and inelastic displacement amplitudes in structures; [C.sub.2] adjusts design values based on component hysteresis characteristics, stiffness degradation, and strength deterioration.
Effect of x-bracing configuration on earthquake damage cost of steel building/Kryzminiu rysiu pavidalo poveikis plieniniu konstrukciju pastato apgadinimo kainai del zemes drebejimo
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