The Mechanical Systems Design (Kinematics) app within 3DEXPERIENCE is a useful tool that can be used as part of the design and validation process of developing a product and/or mechanism.
The Kinematics app within 3DEXPERIENCE allows you to develop your parts into functional assemblies by furthering the functionality of the engineering connections used within the Assembly app. This means you can either create a mechanism specifically for the purpose of checking the functionality of your design or you can modify a design you’ve previously created to run this tool and validate your design.
There are various types of mechanisms within the app to enable you to develop a comprehensive kinematic system including:
The examples provided are that of common applications but the possibilities to develop your ideas and use this powerful tool are much greater.
When using the Kinematics workbench, you can either:
This gives a lot of flexibility to replicate the desired motions. And to understand the required sequence and duration of movements which achieve the result.
Doing this can help you to understand the limitations of the current design. This logically leads to improvements which enable greater flexibility and functionality. These systems can either be controlled using the slider bar in the dialogue box (shown below) or by dragging the components in 3D space.
In addition to the manual movement of the sliders or components, you can also add virtual motors to the joints to show the required motions. These can be controlled with parameters including speed, distance, and oscillation.
An alternative means of controlling the models is by using excitation laws and design tables. This allows you to accurately control a sequence of motions. It allows for concurrent control of multiple motions if required. In the video below you can see an example of this being used where the spindle on the toggle lever clamp is extended before the handle of the clamp is operated.
Assembly ‘Dress up’ Functionality
The Kinematics app includes a feature called ‘Dress up’ which allows you to link the definitions from a wire frame driven mechanism to the actual components so that the functional verification of the design is more representative of the end application.
One of the most useful tools within the kinematics tools are the interference checking capabilities. This shows up where any collisions may happen within the defined parameters of your assembly. Or, instead of showing the collisions, the assembly can stop on contact of these components. This will display the limitations of achievable motion within the design.
This is a great tool for finding limitations within your design and ensuring that these issues are designed out. You can also check pathways of components and distances between components as part of this verification process. This is demonstrated in the video below.
This video shows three scenarios:
These tools can be used to help develop designs including tooling, jigs and fixtures, supporting and simulating the suspension geometry for automotive and motorsport. We even provide training to help customers take these tasks on in-house.
These simple principles can be applied to much more complex designs. What’s more is that they help to reduce development costs by ensuring potential issues are noticed early on. And solutions can be developed before components are manufactured and real life tests are undertaken.