Enum Integrator 

pub enum Integrator<NId = NodeId> {
    LoadControl {
        increment: f64,
    },
    DisplacementControl {
        node: NId,
        dof: usize,
        increment: f64,
    },
    ArcLength(ArcLength<NId>),
}

Static/pseudo-static integration strategy. Closed enum. LoadControl/DisplacementControl only change how this step’s load factor is chosen (the “predictor”) — the iteration that follows (see Algorithm) proceeds identically regardless of which one picked it. ArcLength is different in kind: it predicts displacement and load factor and corrects both together through a bordered system, so Analysis::step hands it to its own continuation driver instead of predict/correct (see arclength.rs and docs/arclength.md).

Generic over NId (the controlled node’s ID type — NodeId or Node3Id), defaulted to the planar profile so bare Integrator keeps working, the same trick Domain uses. predict/correct take the rest of the profile (NDIM/NDOF/ELEMENT_DOF/E) as their own generic parameters instead of Integrator’s, since an integrator’s identity only depends on which node/DOF it controls, not which Domain it’s later used with.

Variants

LoadControl

Fields

increment: f64

DisplacementControl

Chooses this step’s pseudo-time increment so that the controlled node/DOF’s displacement changes by exactly increment, via the standard unit-load technique: solve the current tangent against the sensitivity of the total applied load to a unit pseudo-time increment (Domain::assemble_reference_load_sensitivity — every non-frozen LoadPattern‘s contribution, weighted by its series’ slope at the current pseudo-time; a hold_pattern_constant-frozen or LoadSeries::Constant pattern contributes nothing, since it doesn’t respond to pseudo-time at all) once, then scale by whatever factor makes the controlled DOF’s response match increment.

Fields

node: NId

dof: usize

increment: f64

ArcLength(ArcLength<NId>)

Arc-length continuation along the equilibrium path, through load limits and snap-back — see ArcLength.

Trait Implementations

impl<NId: Clone> Clone for Integrator<NId>

fn clone(&self) -> Integrator<NId>

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<NId: Debug> Debug for Integrator<NId>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<NId: PartialEq> PartialEq for Integrator<NId>

fn eq(&self, other: &Integrator<NId>) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl<NId: PartialEq> StructuralPartialEq for Integrator<NId>