Machine Assembly Simulation for Component Stress Bottlenecks

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Solution Overview

Problem

Existing simulations fail to accurately calculate stresses generated in each component of a machine comprising multiple components, making it difficult to identify bottlenecks and optimize the design for safety and cost-effectiveness.

Innovation Solution

A simulation device and method that calculates stresses in each component of a machine by simulating its operation, identifying bottlenecks, and suggesting optimal component combinations based on safety rates and cost considerations.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If simulation is executed using a machine including multiple components, then the simulation can reflect practical use conditions, but the stress generated in each individual component cannot be calculated

Engineering Contradiction:

Improvesimulation accuracyVSAvoidstress calculation precision

Core Design Contradiction:

ReliabilityVSMeasurement precision

Solution Approach 1:

The patent segments the machine into multiple individual components and calculates stress for each component separately during simulation. The stress calculation unit computes stress values for each component independently based on the simulation results, allowing precise measurement of stress in each segment while maintaining the integrity of the overall machine simulation.

Inventive Principle:

Principle #1Segmentation

2Measurement precision

If detailed stress calculation for each component is implemented, then bottleneck identification becomes possible, but simulation complexity and computational load increase

Engineering Contradiction:

Improvestress measurement precisionVSAvoidsimulation system complexity

Core Design Contradiction:

Measurement precisionVSDevice complexity

Solution Approach 1:

The patent merges the simulation execution unit and stress calculation unit into an integrated system. The stress calculation unit utilizes the simulation results directly without requiring separate analysis, combining the benefits of system-level simulation with component-level stress analysis while avoiding the complexity of fully coupled simulation-stress analysis systems.

Inventive Principle:

Principle #5Merging (Combining)

3Adaptability or versatility

If multiple types of screws and materials are used in the machine, then design flexibility and performance optimization are improved, but manufacturing cost increases

Engineering Contradiction:

Improvedesign flexibilityVSAvoidmanufacturing cost

Core Design Contradiction:

Adaptability or versatilityVSEase of manufacture

Solution Approach 1:

The patent changes the parameters of screws and materials to optimize the balance between design flexibility and manufacturing cost. By adjusting screw specifications and material selections based on actual stress distribution results, the system identifies optimal configurations that maintain necessary performance while reducing the variety of components needed, thereby lowering manufacturing costs.

Inventive Principle:

Principle #35Parameter changes

Data Source

PatentUS12455992B2Simulation device, simulation method, and non-transitory computer-readable storage medium storing simulation program

Publication Date: 2025.10.28 OMRON CORP

AI summary

A stress generated in each of a plurality of components is calculated during simulation using a machine including these components. A simulation device includes a storage that stores assembly data of a machine including a plurality of components and a program for control of a driver connected to machine, and a controller configured to execute a simulation of machine. The controller causes driver to operate in the simulation and calculates a stress generated in each of the plurality of components in the simulation in response to driver being driven.