DigitalTwinStack 物理・デジタルツイン・コア

DigitalTwinStack は Industrial Digital Twins, Real-Time Physics Co-Simulation & OpenUSD Omniverse Stack のエンタープライズ向けリファレンスアーキテクチャを確立します。高忠実度マルチボディ力学、物理情報ニューラルネットワーク(PINN)、Sim2Real転移、リアルタイム協調シミュレーションを包括的に提供。

DigitalTwinStack System Architecture

Digital Twin Core: Industrial Digital Twin Core — Real-Time Multiphysics Co-Simulation, OpenUSD & Asset Administration Shell (AAS)

Subsystems & Simulation Modules

Rigid-Body & Multi-Body Physics Solver
Sim2Real Domain Randomization Engine
Physics-Informed Neural Network (PINN) Surrogate
OPC UA & MQTT High-Frequency Telemetry Ingress
OpenUSD Photorealistic Omniverse Synchronizer

Architectural Layers & Ingress Bus

Layer 1: Physical Sensing & Edge DAQ Ingress (OPC UA Pub/Sub / MQTT Sparkplug B / IEEE 802.1Qbv TSN / 100 kHz Sampling): High-frequency edge data acquisition, time-stamped telemetry ingestion, and microsecond clock synchronization with field sensors and PLCs.
Layer 2: Real-Time Physics & Co-Simulation Core (FMI 3.0 / Featherstone ABA / Symplectic Integrators / Non-Smooth Contact Solvers): Executes non-linear multi-body kinematics, rigid-body contact dynamics, and adaptive step-size co-simulation with guaranteed energy conservation.
Layer 3: Neural Surrogate & PINN Acceleration (Fourier Neural Operators (FNO) / Physics-Informed Neural Networks / DeepONet / TensorRT): Deploys deep operator network surrogates to solve continuous field PDEs (thermal, fluid, structural stress) at over 10,000 evaluations per second.
Layer 4: Semantic Twin & AAS Digital Thread (Asset Administration Shell (IEC 63278) / OpenUSD / WebGL / Gaussian Splatting (3DGS)): Provides standardized semantic model interoperability, bidirectional closed-loop control, and photorealistic spatial visualization.

Performance Benchmarks & Simulation Telemetry: < 1.2 ms (Physics Step Time) | < 1.8% (Sim2Real Error Margin) | 1,400x (PINN Surrogate Speedup) | < 15 us (Telemetry Sync Jitter)

Real-Time Multiphysics and Cyber-Physical Synchronization in DigitalTwinStack

DigitalTwinStack formalizes the engineering specifications for industrial digital twins, real-time physics co-simulation & openusd omniverse stack, combining rigorous mathematical solvers, real-time physics engines, and semantic digital threads.

Core Engineering Areas

Real-Time Multiphysics Co-Simulation and OpenUSD Synchronization — Architectural frameworks coupling rigid body dynamics, fluid dynamics, and thermodynamic boundary conditions inside OpenUSD scene graphs.
Sim2Real Transfer Dynamics: Zero-Shot Policy Deployment on Physical Robotics — Mathematical formalization of dynamics randomization, latency jitter injection, and sensory noise models bridging the reality gap.
Asset Administration Shell (AAS) and OPC UA Industrial Digital Thread — Implementing IEC 63278 Asset Administration Shells for semantic interoperability across distributed enterprise digital twins.