Description

Multi-link suspension constructed with data from file.

#include <MultiLink.h>

Inheritance diagram for chrono::vehicle::MultiLink:
Collaboration diagram for chrono::vehicle::MultiLink:

Public Member Functions

 MultiLink (const std::string &filename)
 
 MultiLink (const rapidjson::Document &d)
 
virtual bool UseTierodBodies () const override
 Indicate whether or not tirod bodies are modelled (default: false). More...
 
virtual double getCamberAngle () const override
 Return the camber angle, in radians (default: 0).
 
virtual double getToeAngle () const override
 Return the toe angle, in radians (default: 0). More...
 
virtual double getSpindleMass () const override
 Return the mass of the spindle body.
 
virtual double getUpperArmMass () const override
 Return the mass of the upper arm body.
 
virtual double getLateralMass () const override
 Return the mass of the lateral body.
 
virtual double getTrailingLinkMass () const override
 Return the mass of the trailing link body.
 
virtual double getUprightMass () const override
 Return the mass of the upright body.
 
virtual double getTierodMass () const override
 Return the mass of the tierod body.
 
virtual double getSpindleRadius () const override
 Return the radius of the spindle body (visualization only).
 
virtual double getSpindleWidth () const override
 Return the width of the spindle body (visualization only).
 
virtual double getUpperArmRadius () const override
 Return the radius of the upper arm body (visualization only).
 
virtual double getLateralRadius () const override
 Return the radius of the lateral body (visualization only).
 
virtual double getTrailingLinkRadius () const override
 Return the radius of the trailing link body (visualization only).
 
virtual double getUprightRadius () const override
 Return the radius of the upright body (visualization only).
 
virtual double getTierodRadius () const override
 Return the radius of the tierod body (visualization only).
 
virtual const ChVector3dgetSpindleInertia () const override
 Return the moments of inertia of the spindle body.
 
virtual const ChVector3dgetUpperArmInertia () const override
 Return the moments of inertia of the upper arm body.
 
virtual const ChVector3dgetLateralInertia () const override
 Return the moments of inertia of the lateral body.
 
virtual const ChVector3dgetTrailingLinkInertia () const override
 Return the moments of inertia of the trailing link body.
 
virtual const ChVector3dgetUprightInertia () const override
 Return the moments of inertia of the upright body.
 
virtual const ChVector3d getTierodInertia () const override
 Return the moments of inertia of the tierod body.
 
virtual double getAxleInertia () const override
 Return the inertia of the axle shaft.
 
virtual double getSpringRestLength () const override
 Return the free (rest) length of the spring element.
 
virtual double getShockRestLength () const override
 Return the free (rest) length of the shock element.
 
virtual std::shared_ptr< ChLinkTSDA::ForceFunctorgetSpringForceFunctor () const override
 Return the functor object for spring force.
 
virtual std::shared_ptr< ChLinkTSDA::ForceFunctorgetShockForceFunctor () const override
 Return the functor object for shock force.
 
virtual std::shared_ptr< ChVehicleBushingDatagetTierodBushingData () const override
 Return stiffness and damping data for the tierod bushings. More...
 
- Public Member Functions inherited from chrono::vehicle::ChSuspension
const ChVector3dGetRelPosition () const
 Get the location of the suspension subsystem relative to the associated chassis reference frame. More...
 
std::shared_ptr< ChBodyGetSpindle (VehicleSide side) const
 Get a handle to the spindle body on the specified side.
 
std::shared_ptr< ChShaftGetAxle (VehicleSide side) const
 Get a handle to the axle shaft on the specified side.
 
std::shared_ptr< ChLinkLockRevoluteGetRevolute (VehicleSide side) const
 Get a handle to the revolute joint on the specified side.
 
const ChVector3dGetSpindlePos (VehicleSide side) const
 Get the global location of the spindle on the specified side.
 
ChQuaternion GetSpindleRot (VehicleSide side) const
 Get the orientation of the spindle body on the specified side. More...
 
const ChVector3dGetSpindleLinVel (VehicleSide side) const
 Get the linear velocity of the spindle body on the specified side. More...
 
ChVector3d GetSpindleAngVel (VehicleSide side) const
 Get the angular velocity of the spindle body on the specified side. More...
 
double GetAxleSpeed (VehicleSide side) const
 Get the angular speed of the axle on the specified side.
 
virtual void Synchronize ()
 Synchronize this suspension subsystem.
 
void ApplyAxleTorque (VehicleSide side, double torque)
 Apply the provided motor torque. More...
 
virtual std::shared_ptr< ChBodyGetBrakeBody (VehicleSide side) const
 Specify the body on the specified side for a possible connection to brake subsystem. More...
 
virtual std::vector< ForceRSDA > ReportSuspensionTorque (VehicleSide side) const
 Return current RSDA torque information on the specified side.
 
void ApplyParkingBrake (bool brake)
 Simple model of a parking brake.
 
- Public Member Functions inherited from chrono::vehicle::ChPart
const std::string & GetName () const
 Get the name identifier for this subsystem.
 
void SetName (const std::string &name)
 Set the name identifier for this subsystem.
 
bool IsInitialized () const
 Return flag indicating whether or not the part is fully constructed.
 
double GetMass () const
 Get the subsystem mass. More...
 
const ChFrameGetCOMFrame () const
 Get the current subsystem COM frame (relative to and expressed in the subsystem's reference frame). More...
 
const ChMatrix33GetInertia () const
 Get the current subsystem inertia (relative to the subsystem COM frame). More...
 
const ChFrameGetTransform () const
 Get the current subsystem position relative to the global frame. More...
 
void SetVisualizationType (VisualizationType vis)
 Set the visualization mode for this subsystem.
 
virtual void SetOutput (bool state)
 Enable/disable output for this subsystem.
 
bool OutputEnabled () const
 Return the output state for this subsystem.
 

Additional Inherited Members

- Static Public Member Functions inherited from chrono::vehicle::ChPart
static ChMatrix33 TransformInertiaMatrix (const ChVector3d &moments, const ChVector3d &products, const ChMatrix33<> &vehicle_rot, const ChMatrix33<> &body_rot)
 Utility function for transforming inertia tensors between centroidal frames. More...
 
 Identifiers for the various hardpoints. More...
 Identifiers for the various vectors. More...
- Protected Member Functions inherited from chrono::vehicle::ChSuspension
 ChSuspension (const std::string &name)
 Construct a suspension subsystem with given name.
 
- Protected Member Functions inherited from chrono::vehicle::ChPart
 ChPart (const std::string &name)
 Construct a vehicle subsystem with the specified name.
 
void AddMass (double &mass)
 Add this subsystem's mass. More...
 
void AddInertiaProperties (ChVector3d &com, ChMatrix33<> &inertia)
 Add this subsystem's inertia properties. More...
 
void ExportBodyList (rapidjson::Document &jsonDocument, std::vector< std::shared_ptr< ChBody >> bodies) const
 Export the list of bodies to the specified JSON document.
 
void ExportShaftList (rapidjson::Document &jsonDocument, std::vector< std::shared_ptr< ChShaft >> shafts) const
 Export the list of shafts to the specified JSON document.
 
void ExportJointList (rapidjson::Document &jsonDocument, std::vector< std::shared_ptr< ChLink >> joints) const
 Export the list of joints to the specified JSON document.
 
void ExportCouplesList (rapidjson::Document &jsonDocument, std::vector< std::shared_ptr< ChShaftsCouple >> couples) const
 Export the list of shaft couples to the specified JSON document.
 
void ExportMarkerList (rapidjson::Document &jsonDocument, std::vector< std::shared_ptr< ChMarker >> markers) const
 Export the list of markers to the specified JSON document.
 
void ExportLinSpringList (rapidjson::Document &jsonDocument, std::vector< std::shared_ptr< ChLinkTSDA >> springs) const
 Export the list of translational springs to the specified JSON document.
 
void ExportRotSpringList (rapidjson::Document &jsonDocument, std::vector< std::shared_ptr< ChLinkRSDA >> springs) const
 Export the list of rotational springs to the specified JSON document.
 
void ExportBodyLoadList (rapidjson::Document &jsonDocument, std::vector< std::shared_ptr< ChLoadBodyBody >> loads) const
 Export the list of body-body loads to the specified JSON document.
 
- Static Protected Member Functions inherited from chrono::vehicle::ChPart
static void RemoveVisualizationAssets (std::shared_ptr< ChPhysicsItem > item)
 Erase all visual shapes from the visual model associated with the specified physics item (if any).
 
static void RemoveVisualizationAsset (std::shared_ptr< ChPhysicsItem > item, std::shared_ptr< ChVisualShape > shape)
 Erase the given shape from the visual model associated with the specified physics item (if any).
 
- Protected Attributes inherited from chrono::vehicle::ChSuspension
ChVector3d m_rel_loc
 location relative to chassis
 
std::shared_ptr< ChBodym_spindle [2]
 handles to spindle bodies
 
std::shared_ptr< ChShaftm_axle [2]
 handles to axle shafts
 
std::shared_ptr< ChShaftBodyRotationm_axle_to_spindle [2]
 handles to spindle-shaft connectors
 
std::shared_ptr< ChLinkLockRevolutem_revolute [2]
 handles to spindle revolute joints
 
- Protected Attributes inherited from chrono::vehicle::ChPart
std::string m_name
 subsystem name
 
bool m_initialized
 specifies whether ot not the part is fully constructed
 
bool m_output
 specifies whether or not output is generated for this subsystem
 
std::shared_ptr< ChPartm_parent
 parent subsystem (empty if parent is vehicle)
 
double m_mass
 subsystem mass
 
ChMatrix33 m_inertia
 inertia tensor (relative to subsystem COM)
 
ChFrame m_com
 COM frame (relative to subsystem reference frame)
 
ChFrame m_xform
 subsystem frame expressed in the global frame
 

Member Function Documentation

◆ getTierodBushingData()

virtual std::shared_ptr<ChVehicleBushingData> chrono::vehicle::MultiLink::getTierodBushingData ( ) const
inlineoverridevirtual

Return stiffness and damping data for the tierod bushings.

Used only if tierod bodies are defined (see UseTierodBody). Returning nullptr (default) results in using kinematic joints (spherical + universal).

Reimplemented from chrono::vehicle::ChMultiLink.

◆ getToeAngle()

virtual double chrono::vehicle::MultiLink::getToeAngle ( ) const
inlineoverridevirtual

Return the toe angle, in radians (default: 0).

A positive value indicates toe-in, a negative value indicates toe-out.

Reimplemented from chrono::vehicle::ChMultiLink.

◆ UseTierodBodies()

virtual bool chrono::vehicle::MultiLink::UseTierodBodies ( ) const
inlineoverridevirtual

Indicate whether or not tirod bodies are modelled (default: false).

If false, tierods are modelled using distance constraints. If true, rigid tierod bodies are created (in which case a derived class must provide the mass and inertia) and connected either with kinematic joints or bushings (depending on whether or not bushing data is defined).

Reimplemented from chrono::vehicle::ChMultiLink.


The documentation for this class was generated from the following files:
  • /builds/uwsbel/chrono/src/chrono_vehicle/wheeled_vehicle/suspension/MultiLink.h
  • /builds/uwsbel/chrono/src/chrono_vehicle/wheeled_vehicle/suspension/MultiLink.cpp