Mechanical Analysis in Flux

Flux is an AI hardware engineer. It analyzes mechanical parts and complete products to inform design decisions.

Analyze a mechanical design

Ask Flux for an analysis that matches a product question. Mechanical analysis can cover stress, deflection, heat transfer, airflow, fit, tool access, and mass properties. The analysis can also address center of mass, inertia, cross-section properties, robot reach, self-collision, and joint loads.

Analyze the deflection of this wall-mount bracket when it carries a 2 kg display.
Calculate the center of mass and inertia of this robot arm with the gripper attached.
Check the reach of this robot arm and find any self-collision across the joint range.

Start with the part or assembly that matters. Describe the load, motion, heat source, airflow, or product condition you want to study. Name the materials and dimensions that define the design when those details matter to the question.

  1. Add the mechanical model and related hardware to the project.

  2. Tell Flux what behavior or property you want to analyze.

  3. Describe the relevant geometry, load, motion, material, or operating condition.

  4. Ask Flux to run the analysis and summarize the result.

  5. Use the findings to guide a focused design change.

For an enclosure that contains warm electronics, describe the heat-producing parts and the product's airflow path. For a bracket, name the attached part and the load it carries. For a robot arm, describe the reach and the joints that define its movement.

Strength, movement, and mass

Ask Flux to analyze stress and deflection when a part supports a load or connects moving parts. State where the part attaches and where the load acts. For a moving assembly, describe the range of motion and the parts that must stay clear.

Analyze stress in this servo mount under a 15 N load at the horn. Show where the stress is highest.
Show how moving the battery 20 mm toward the grip changes the balance of this handheld product.

Mass properties help you reason about the weight and balance of a product. Ask for mass, center of mass, or inertia when you design a handheld tool, a moving assembly, or a device that must balance around an axis. Cross-section properties can inform a structural design.

Use the analysis question to frame the result. Ask how a change in a bracket's thickness affects its deflection, or how moving a battery changes the balance of a handheld product. Ask Flux to connect the answer to a specific part or feature in the model.

Simulate flight dynamics

Ask Flux to simulate the flight dynamics of a drone, multirotor, or airplane.

I have a quadcopter with an all-up mass of 1.6 kg, a 4S 5000 mAh battery, and 10x4.5 inch propellers on 920 KV motors. It hovers at 20 m. A steady 5 m/s side gust starts. How far does it drift, how far does it tilt, and how long does it take to hold position again? Plot position and tilt over time.
Estimate the hover time for this multirotor from its mass, battery, motors, propellers, and frame size.
Estimate the climb rate of this fixed-wing airplane from its mass, battery, motor, propeller, and flight condition.
  1. Open the project with the aircraft model.

  2. Open Chat and provide the mass, battery, motors, propellers, frame size, and flight condition.

  3. Ask Flux to run the flight simulation.

Flux runs a time-based flight simulation. You can ask about hover and forward-flight endurance, climb performance, response to a wind gust, and whether the aircraft holds position or attitude in wind. The report lists every input with its value, unit, and source. It includes plots of position and tilt over time, hand checks, margins, and a verdict.

Heat and airflow

Ask Flux to analyze heat conduction through a mechanical part or how air moves through a product. This can inform a heat sink, ventilation opening, electronics enclosure, or liquid-cooled assembly. Name the heat-producing parts, the surfaces that transfer heat, and the openings or channels that guide air or liquid.

Analyze heat conduction from the voltage regulator through the aluminum heat sink to the enclosure wall.
Analyze airflow through this enclosure with the fan on the rear panel and vents on the front.

For more detail about mechanical analysis and air flow and liquid cooling, see Mechanical analysis in simulation and Air flow and liquid cooling simulation. Those pages describe the simulation workflow. This page focuses on when to ask Flux for mechanical analysis and how to frame the design question.

Use analysis as part of design

Ask for an analysis while the part and assembly are still changing. A result can guide a change to a wall, mount, cooling path, or joint. Keep the product context in the project so Flux can relate the analysis to the board, motor, display, or enclosure.

Analyze the deflection of this bracket, then change its thickness until the deflection is less than 0.1 mm.
Analyze the temperature of the motor driver in this enclosure, then add vents until it stays below 80 °C.
  1. Select the design area that drives the question.

  2. Describe the condition that matters to the product.

  3. Ask Flux to analyze the relevant mechanical property.

  4. Ask for a concise summary that connects the result to the design.

  5. Request a model change that addresses the design goal.

You can ask about a single part or a complete device. A single-part request might focus on stress in a support. A product request might consider board heat, airflow through the enclosure, and the location of a fan. A robot request might consider reach, collision, and the load at a joint.

Example prompts

Ask Flux to analyze a mechanical design or its flight behavior.

Analyze stress and deflection in this motor bracket under a 20 N load at the mounting face. Summarize the result and suggest a geometry change.
Analyze heat flow from the processor board to the aluminum enclosure. Compare the contact area around the two mounting posts.
Analyze airflow through this instrument enclosure. The board and display generate heat, and air enters through the lower vents.
Calculate the mass properties of this handheld instrument. Show the center of mass relative to the grip.
Analyze the robot arm's reach and joint loads with this sensor at the end. Include the movement range in the prompt.
Simulate this quadcopter in a steady 5 m/s side gust. Plot its position and tilt over time and report its drift, tilt, and time to hold position again.