An effective adaptive time domain formulation to analyse acoustic–elastodynamic coupled models

Soares, Delfim; Almeida, Victor Bicalho Civinelli de

doi:10.1016/j.compstruc.2017.04.007

Cited by 6 publications

(1 citation statement)

References 31 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Many procedures can be employed to improve stability and accuracy of time‐integration algorithms, such as subcycling techniques, mass scaling procedures, high‐order accurate schemes, and automatic time step control. As a matter of fact, a lot of research is continuously devoted to this field and several time‐marching techniques are available nowadays for transient analyses …”

Section: Introductionmentioning

confidence: 99%

A model/solution‐adaptive explicit‐implicit time‐marching technique for wave propagation analysis

Soares

2019

Numerical Meth Engineering

Self Cite

View full text Add to dashboard Cite

Summary In this work, an explicit‐implicit time‐marching procedure with model/ solution‐adaptive time integration parameters is proposed for the analysis of hyperbolic models. The two time integrators of the methodology are locally evaluated, enabling their different spatial and temporal distributions. The first parameter defines the explicit/implicit subdomains of the model, and it is defined in a way that stability is always ensured, as well as period elongation errors are reduced; the second parameter controls the dissipative properties of the methodology, allowing spurious high‐frequency modes to be properly eliminated, rendering reduced amplitude decay errors. In addition, the proposed explicit‐implicit approach allows contracted systems of equations to be obtained, reducing the computational effort of the analysis. The main features of the novel methodology can be summarized as follows: (i) it is simple; (ii) it is locally defined; (iii) it has guaranteed stability; (iv) it is an efficient noniterative single‐step procedure; (v) it provides enhanced accuracy; (vi) it enables advanced controllable algorithmic dissipation in the higher modes; (vii) it considers a link between the temporal and the spatial discretization; (viii) it stands as a single‐solve framework based on reduced systems of equations; (ix) it is truly self‐starting; and (x) it is entirely automatic.

show abstract

Section: Introductionmentioning

confidence: 99%

A model/solution‐adaptive explicit‐implicit time‐marching technique for wave propagation analysis

Soares

2019

Numerical Meth Engineering

Self Cite

View full text Add to dashboard Cite

show abstract

An adaptive semi-explicit/explicit time marching technique for nonlinear dynamics

Soares

2019

Computer Methods in Applied Mechanics and Engineering

View full text Add to dashboard Cite

A stabilized explicit approach to efficiently analyse wave propagation through coupled fluid–structure models

Soares

2019

Computer Methods in Applied Mechanics and Engineering

View full text Add to dashboard Cite

An effective adaptive time domain formulation to analyse acoustic–elastodynamic coupled models

Cited by 6 publications

References 31 publications

A model/solution‐adaptive explicit‐implicit time‐marching technique for wave propagation analysis

A model/solution‐adaptive explicit‐implicit time‐marching technique for wave propagation analysis

An adaptive semi-explicit/explicit time marching technique for nonlinear dynamics

A stabilized explicit approach to efficiently analyse wave propagation through coupled fluid–structure models

Contact Info

Product

Resources

About