Reference Frame

R2026b

Non-inertial reference frame

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Reference Frame block

To add a block to a model, double-click the canvas and start typing the block name. Then, select the block from the list.

Libraries:
Simscape / Multibody / Frames and Transforms

Description

This block represents a reference frame with respect to which you can define other frames. The reference frame is generally non-inertial. It can accelerate with respect to the World frame. This block is optional in a model.

Examples

Using the Worm and Gear Constraint Block - Solar Tracker

Illustrates the use of the Worm and Gear Constraint block to model a solar tracker. A slew drive containing a worm and gear constraint powers the yaw rotation of the solar trackers. The worm and gear geometry gives a large reduction in a single stage of gearing which provides precision tracking and high torque output. The yaw rotation is specified as a motion input to the gear revolute joint and the necessary actuator torque is automatically computed at the worm revolute joint.

• Open Model

Ports

Frame

R — Reference frame

frame

Local reference frame represented by the block. Connect to a frame line or frame port to define the relative position and orientation of the reference frame.

Programmatic Use: Add Block

To add the block programmatically, use the add_block function with one of these library block paths as the source.

"sm_lib/Frames and Transforms/Reference Frame"

Example: add_block("sm_lib/Frames and Transforms/Reference Frame","myModel/myBlock",MakeNameUnique="on")

Extended Capabilities

C/C++ Code Generation
Generate C and C++ code using Simulink® Coder™.

Version History

Introduced in R2012a