chrono::vehicle::hmmwv::HMMWV_RigidTire Class Reference

Description

Rigid tire model for the HMMWV vehicle.

#include <HMMWV_RigidTire.h>

Inheritance diagram for chrono::vehicle::hmmwv::HMMWV_RigidTire:
Collaboration diagram for chrono::vehicle::hmmwv::HMMWV_RigidTire:

Public Member Functions

 HMMWV_RigidTire (const std::string &name, bool use_mesh=false)
 
virtual double GetRadius () const override
 Get the tire radius.
 
virtual double GetWidth () const override
 Get the tire width.
 
virtual double GetTireMass () const override
 Return the tire mass.
 
virtual ChVector3d GetTireInertia () const override
 Return the tire moments of inertia (in the tire centroidal frame).
 
- Public Member Functions inherited from chrono::vehicle::ChRigidTire
 ChRigidTire (const std::string &name)
 
virtual std::string GetTemplateName () const override
 Get the name of the vehicle subsystem template.
 
void SetMeshFilename (const std::string &mesh_file, double sweep_sphere_radius=0)
 Set Wavefront OBJ file for contact mesh. More...
 
bool UseContactMesh () const
 Check whether or not this tire uses a contact mesh.
 
virtual TerrainForce ReportTireForce (ChTerrain *terrain) const override
 Report the tire force and moment. More...
 
virtual TerrainForce ReportTireForceLocal (ChTerrain *terrain, ChCoordsys<> &tire_frame) const override
 Get the tire force and moment expressed in the tire frame. More...
 
std::shared_ptr< ChContactMaterialGetContactMaterial () const
 Get the tire contact material. More...
 
std::shared_ptr< ChTriangleMeshConnectedGetContactMesh () const
 Get the contact mesh.
 
void GetMeshVertexStates (std::vector< ChVector3d > &pos, std::vector< ChVector3d > &vel) const
 Get the current state of the collision mesh. More...
 
- Public Member Functions inherited from chrono::vehicle::ChTire
void SetStepsize (double val)
 Set the integration step size for the underlying dynamics (default: 1ms). More...
 
double GetStepsize () const
 Get the current value of the integration step size.
 
void SetCollisionType (CollisionType collision_type)
 Set the collision type for tire-terrain interaction (default: SINGLE_POINT). More...
 
void SetContactSurfaceType (ContactSurfaceType type, double dim=0.01, int collision_family=13)
 Set the contact surface type (default: NODE_CLOUD). More...
 
void SetPressure (double pressure)
 Set the internal tire pressure [Pa] (default: 0). More...
 
double GetPressure () const
 Get the internal tire pressure [Pa].
 
double GetSlipAngle () const
 Return the tire slip angle calculated based on the current state of the associated wheel body. More...
 
double GetLongitudinalSlip () const
 Return the tire longitudinal slip calculated based on the current state of the associated wheel body. More...
 
double GetCamberAngle () const
 Return the tire camber angle calculated based on the current state of the associated wheel body. More...
 
virtual double GetDeflection () const
 Report the tire deflection.
 
const std::string & GetMeshFilename () const
 Get the name of the Wavefront file with tire visualization mesh. More...
 
std::shared_ptr< ChWheelGetWheel () const
 Get the associated wheel. More...
 
virtual void Advance (double step)
 Advance the state of this tire by the specified time step.
 
- 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.
 
virtual void ExportComponentList (rapidjson::Document &jsonDocument) const
 Export this subsystem's component list to the specified JSON object. More...
 
virtual void Output (ChVehicleOutput &database) const
 Output data for this subsystem's component list to the specified database.
 

Additional Inherited Members

- Public Types inherited from chrono::vehicle::ChTire
enum  CollisionType { SINGLE_POINT, FOUR_POINTS, ENVELOPE }
 Collision detection type. More...
 
enum  ContactSurfaceType { NODE_CLOUD, TRIANGLE_MESH }
 Contact surface type. More...
 
- Static Public Member Functions inherited from chrono::vehicle::ChTire
static ChVector3d EstimateInertia (double tire_width, double aspect_ratio, double rim_diameter, double tire_mass, double t_factor=2)
 Utility function for estimating the tire moments of inertia. More...
 
- 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...
 
- Protected Member Functions inherited from chrono::vehicle::ChRigidTire
virtual void InitializeInertiaProperties () override final
 Initialize subsystem inertia properties. More...
 
virtual void UpdateInertiaProperties () override final
 Update subsystem inertia properties. More...
 
virtual double GetAddedMass () const override final
 Get the mass added to the associated spindle body. More...
 
virtual ChVector3d GetAddedInertia () const override final
 Get the inertia added to the associated spindle body. More...
 
virtual TerrainForce GetTireForce () const override final
 Get the tire force and moment. More...
 
virtual void Initialize (std::shared_ptr< ChWheel > wheel) override
 Initialize this tire by associating it to the specified wheel.
 
virtual void Synchronize (double time, const ChTerrain &terrain) override
 Update the state of this tire system at the current time. More...
 
- Protected Member Functions inherited from chrono::vehicle::ChTire
 ChTire (const std::string &name)
 Construct a tire subsystem with given name.
 
void CalculateKinematics (const WheelState &wheel_state, const ChCoordsys<> &tire_frame)
 Calculate kinematics quantities based on the given state of the associated wheel body. More...
 
double GetOffset () const
 Get offset from spindle center. More...
 
std::shared_ptr< ChVisualShapeTriangleMeshAddVisualizationMesh (const std::string &mesh_file_left, const std::string &mesh_file_right)
 Add mesh visualization to the body associated with this tire (a wheel spindle body). More...
 
- 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...
 
virtual void Create (const rapidjson::Document &d)
 Create a vehicle subsystem from JSON data. 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::ChTire
static bool DiscTerrainCollision (CollisionType method, const ChTerrain &terrain, const ChVector3d &disc_center, const ChVector3d &disc_normal, double disc_radius, double width, const ChFunctionInterp &areaDep, ChCoordsys<> &contact, double &depth, float &mu)
 Perform disc-terrain collision detection, using the specified method. More...
 
static void ConstructAreaDepthTable (double disc_radius, ChFunctionInterp &areaDep)
 Utility function to construct a loopkup table for penetration depth as function of intersection area, for a given tire radius. More...
 
static bool DiscTerrainCollision1pt (const ChTerrain &terrain, const ChVector3d &disc_center, const ChVector3d &disc_normal, double disc_radius, ChCoordsys<> &contact, double &depth, float &mu)
 Perform disc-terrain collision detection. More...
 
static bool DiscTerrainCollision4pt (const ChTerrain &terrain, const ChVector3d &disc_center, const ChVector3d &disc_normal, double disc_radius, double width, ChCoordsys<> &contact, double &depth, float &mu)
 Perform disc-terrain collision detection considering the curvature of the road surface. More...
 
static bool DiscTerrainCollisionEnvelope (const ChTerrain &terrain, const ChVector3d &disc_center, const ChVector3d &disc_normal, double disc_radius, double width, const ChFunctionInterp &areaDep, ChCoordsys<> &contact, double &depth, float &mu)
 Collsion algorithm based on a paper of J. More...
 
- 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::ChRigidTire
std::shared_ptr< ChContactMaterialm_material
 contact material;
 
bool m_use_contact_mesh
 flag indicating use of a contact mesh
 
std::string m_contact_meshFile
 name of the OBJ file for contact mesh
 
double m_sweep_sphere_radius
 radius of sweeping sphere for mesh contact
 
std::shared_ptr< ChTriangleMeshConnectedm_trimesh
 contact mesh
 
std::shared_ptr< ChVisualShapem_cyl_shape
 visualization cylinder asset
 
- Protected Attributes inherited from chrono::vehicle::ChTire
std::shared_ptr< ChWheelm_wheel
 associated wheel subsystem
 
double m_stepsize
 tire integration step size (if applicable)
 
double m_pressure
 internal tire pressure
 
CollisionType m_collision_type
 method used for tire-terrain collision
 
ContactSurfaceType m_contact_surface_type
 type of contact surface model (node cloud or mesh)
 
double m_contact_surface_dim
 contact surface dimension (node radius or mesh thickness)
 
int m_collision_family
 collision family for this tire
 
std::string m_vis_mesh_file
 name of OBJ file for visualization of this tire (may be empty)
 
double m_slip_angle
 
double m_longitudinal_slip
 
double m_camber_angle
 
- 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
 

The documentation for this class was generated from the following files:
  • /builds/uwsbel/chrono/src/chrono_models/vehicle/hmmwv/tire/HMMWV_RigidTire.h
  • /builds/uwsbel/chrono/src/chrono_models/vehicle/hmmwv/tire/HMMWV_RigidTire.cpp