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Optimization of a Catapult with Motion Features

You define the optimal spring constant of a catapult that launches a projectile to hit a target with the minimum impact force.

You create a design study to find the required spring constant of a catapult designed for launching a projectile that hits a target at a certain distance.

Catapult

To open the model, go to install_dir\samples\whatsnew\Optimization\catapult.sldasm.

You need to install the Motion Simulation add-in to complete the tutorial.

Review the Motion Analysis study features:


  • Linear spring
  • Gravity load
  • Two body contact sets
  • Two result plots for tracking the contact force between the projectile and the target, and the X - component of the projectile's linear displacement.
  • Two sensors that track the motion analysis result plots.
    To create sensors that track motion results, in the Sensor/Results PropertyManager, select Create Sensor for Design Study/Optimization.
  1. Defining the Design Study Variable
    You define the spring constant as a parameter, and you add it as a variable in the design study.
  2. Defining Constraint and Goal
    You define the sensor that tracks the X-component of the projectile's trajectory as a constraint . As a goal, you want to minimize the impact force of the projectile when it hits the target.
  3. Running the Optimization
Parent topic: Simulation


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