34.2.2. Rocker Arm

The user can create Rocker Arm as 4 types.

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Figure 34.85 RockerArm

34.2.2.1. Properties

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Figure 34.86 GroupRockerArm property page

  • Ref Parametric Marker: Controls the position of Rocker Arm. It is also special parametric marker (SPM).

  • Type of Rocker Arm: Selects the type of Rocker Arm. It defines the connection method between multi bodies.

  • Material Type: Selects a material type. Three method are supported. For more information, click here.

  • Rocker Arm Geometry Property: Defines some geometry data and property data for Rocker Arm. Cam Roller and Slipper types are supported and the type can be selected in Valve Global Data dialog box.

  • Each Rendering: The selected mode can be displayed in Each Render mode.

34.2.2.1.1. Type of Rocker Arm

Rigid Type

All multi bodies are connected by fixed joint. It acts like one body.

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Figure 34.87 Rocker Arm property page [Rigid Type]

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Figure 34.88 Rigid Type of the Rocker Arm

Torsional & Bending Type

Multi bodies are connected by Bushing Force. It acts like flexible body.

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Figure 34.89 Rocker Arm property page [Torsional & Bending Type]

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Figure 34.90 Torsional & Bending Type of the Rocker Arm

  • Bushing Property: If Torsional & Bending type of Rocker Arm is selected, this function is activated and defines bushing property data. For more information, refer to Bushing Force.

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    Figure 34.91 Torsional Bushing Property dialog box

Beam Type

Multi bodies are connected by Beam Force. It acts like flexible body.

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Figure 34.92 Rocker Arm property page [Beam Type]

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Figure 34.93 Beam Type of the Rocker Arm

  • Beam Property: If Beam type of Rocker Arm is selected, this function is activated and defines beam force property data. For more information, refer to Beam Force.

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    Figure 34.94 Beam Property dialog box

34.2.2.1.2. Rocker Arm Geometry Property

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Figure 34.95 RockerArm CamRoller Property dialog box [CamRoller – AdjustScrew Type]

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Figure 34.96 Geometric information

  • Arm Partial Shaft Outer Diameter: Defines an outer diameter of Arm Partial Shaft.

  • Arm Partial Shaft Inner Diameter: Defines an inner diameter of Arm Partial Shaft.

  • Arm Length for Cam Side: Defines a length of arm for Cam Side.

  • Arm Thickness of Cam Side: Defines a thickness of arm for Cam Side.

  • Arm Length: Defines a length of arm for Valve Side.

  • Arm Thickness: Defines a thickness of arm for Valve Side.

  • AS Diameter: Defines a diameter of Adjust Screw.

  • AS Axial Pos: Defines an axial position of Adjust Screw.

  • VS Length: Defines a length of Valve Slipper.

  • VS Width: Defines a width of Valve Slipper.

34.2.2.1.2.1. CamRoller Type

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Figure 34.97 RockerArm CamRoller Property dialog box

CamRoller – CamRollerShaft

  • Constraint Bearing

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    Figure 34.98 Connection of CamRoller - CamRollerShaft

  • Type

  • Friction

    • Standard Friction

    • Empirical Formula

  • Bushing Bearing

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    Figure 34.99 Connection of CamRoller - CamRollerShaft

    • Friction

      • Standard Friction

      • Empirical Formula

CamRollerShaft – CamRollerShaftBearing

  • Fixed Joint

  • Bushing

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    Figure 34.100 Connection of CamRollerShaft – CamRollerShaft Bearing

    • Friction

      • Standard Friction

      • Empirical Formula

Cam Roller

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Figure 34.101 Geometric Information for CamRoller

Cam Roller Shaft

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Figure 34.102 Geometric Information for CamRollerShaft

Cam Roller Shaft Bearing

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Figure 34.103 Properties of Cam Roller Shaft Bearing

34.2.2.1.2.2. Slipper Type

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Figure 34.104 RockerArm Slipper Property dialog box

Slipper

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Figure 34.105 Geometric information

  • Length: Defines a length of the slipper.

  • Width: Defines a width of the slipper.