Struct ElectroactivePoly 

pub struct ElectroactivePoly {
    pub eap_type: EapType,
    pub max_strain: f64,
    pub v_half: f64,
    pub elastic_modulus: f64,
    pub time_constant: f64,
    pub state: f64,
}

Electroactive polymer (EAP) model.

Covers both ionic (low voltage, large bending) and electronic (high voltage, large area strain) EAP types.

Fields

eap_type: EapType

Type of EAP.

max_strain: f64

Maximum actuation strain (dimensionless).

v_half: f64

Half-wave voltage V_50 at which strain = 50 % max [V].

elastic_modulus: f64

Elastic modulus [Pa].

time_constant: f64

Bandwidth (time constant) [s].

state: f64

Current actuation state (0..1).

Implementations

impl ElectroactivePoly

pub fn new( eap_type: EapType, max_strain: f64, v_half: f64, elastic_modulus: f64, time_constant: f64, ) -> Self

Create an EAP model.

pub fn ipmc() -> Self

Standard IPMC model (ionic).

pub fn dielectric_elastomer() -> Self

Standard dielectric elastomer model (electronic).

pub fn steady_state_strain(&self, voltage: f64) -> f64

Steady-state strain from applied voltage (sigmoid model).

pub fn transient_strain(&self, voltage: f64, t: f64) -> f64

Transient strain at time t after step voltage.

pub fn blocking_stress(&self, voltage: f64) -> f64

Blocking stress (force per area) [Pa].

pub fn update(&mut self, voltage: f64, dt: f64)

Update state (first-order lag) by dt.

pub fn current_strain(&self) -> f64

Current strain from state.

Trait Implementations

impl Clone for ElectroactivePoly

fn clone(&self) -> ElectroactivePoly

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ElectroactivePoly

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

Formats the value using the given formatter.