The Linear Flexible Joint system is ideal to introduce intermediate control concepts related to vibration analysis and resonance. You can use it to demonstrate real-world control challenges encountered, for example, in elastic linkages and mechanical transmissions.
The Linear Flexible Joint module is used paired with the Linear Servo Base Unit (IP02). With this setup students learn how to:
You can further expand your experiment by mounting the Linear Flexible Joint on the Seesaw module (can be purchased separarately). With this setup, students can learn how to maintain the seesaw balance by driving the carts back and forth.
In addition to teaching intermediate control concepts, Linear Flexible Joint can be used for research in various areas, including system inversion, time optimization, nonlinear control, robust control, intelligent control and system identification.
How It Works
The Linear Flexible Joint module consists of a passive linear cart coupled to a Linear Servo Base Unit through a linear spring. The Linear Flexible Joint is made of solid aluminum and uses linear bearings to slide along the Linear Servo Base Unit ground stainless steel shaft. The joint position is measured using a rotary optical encoder whose shaft meshes with the track via a pinion. The system is supplied with two additional masses that can be mounted atop the cart.
As the Linear Servo Base Unit moves back and forth, the Linear Flexible Joint cart will naturally tend to oscillate. Using feedback control, one can attempt to attenuate these motions.
Quanser-developed ABET-aligned Courseware Included
The Linear Flexible Joint module comes with Quanser-developed courseware standardized for ABET evaluation criteria. The workbook with exercises, together with quick start resources, a comprehensive User Manual, pre-designed controllers and a system model allow you to get your lab running faster, saving months of time typically required to develop lab materials.
Linear Flexible Joint on Seesaw Option:
Topics included in the Quanser-developed courseware:
To set up your Linear Flexible Joint workstation, you need additional components. Quanser engineers recommend:
¹ alternatively, you can use Q8-USB, QPIDe or any equivalent NI DAQ device supported by QUARC
² NI cRIO-9074, or NI cRIO-9024 with cRIO-9113 or cRIO-9114 chassis
³ NI DAQ device must be supported by Quanser RCP toolkit. Alternatively, you can use Quanser Q2-USB, Q8-USB, or QPIDe