Optimize Worker Safety, Productivity, and Manufacturing Performance with Digital Human Simulation
At 4D Systems, we help manufacturers design safer, more efficient work environments through advanced ergonomic simulation and digital human modeling. Using industry-leading software platforms including Tecnomatix Process Simulate Human and DELMIA Human, we evaluate human tasks in a virtual environment before equipment is built, installed, or modified.
Our ergonomic simulation services enable organizations to identify potential safety risks, reduce worker fatigue, improve productivity, and ensure compliance with ergonomic standards during the design phase—when changes are least expensive and most effective.

Design Workstations Around People, Not Assumptions
Traditional workstation design often relies on assumptions, physical prototypes, or post-installation modifications. Digital human simulation allows engineers to evaluate how real people interact with equipment, tools, and products before implementation.
Using virtual human models representing various body sizes, strengths, and capabilities, we analyze:
- Reachability and accessibility
- Worker posture and body mechanics
- Visibility and line-of-sight
- Joint stress and fatigue
- Lifting, carrying, pushing, and pulling tasks
- Repetitive motion risks
- Assembly and maintenance accessibility
- Human-robot interaction and collaboration
- Workstation layout optimization
- Cycle time and labor efficiency
This proactive approach helps organizations prevent ergonomic issues before they become costly injuries or production bottlenecks.
Our Ergonomic Simulation Capabilities
Digital Human Modeling
Create realistic virtual operators based on population demographics and anthropometric data.
Capabilities include:
- Male and female workforce representation
- Multiple percentile body sizes (5th, 50th, 95th percentile)
- Global workforce population analysis
- Custom worker characteristics
- Motion and posture simulation
- Task sequence validation
Ergonomic Risk Assessment
Evaluate worker exposure to ergonomic risk factors using recognized industry methodologies.
Assessments include:
- RULA (Rapid Upper Limb Assessment)
- REBA (Rapid Entire Body Assessment)
- NIOSH lifting analysis
- OWAS posture assessment
- Biomechanical stress analysis
- Joint load evaluation
- Fatigue assessment
- Strength capability analysis
Human Strength and Capability Analysis
Determine whether workers can safely perform required tasks.
Analysis includes:
- Lift force requirements
- Push and pull force evaluation
- Grip force requirements
- Joint torque analysis
- Worker capability validation
- Fatigue prediction
- Population accommodation studies
Reach and Accessibility Studies
Ensure workers can comfortably access all required components, tools, and controls.
Evaluate:
- Assembly operations
- Maintenance access
- Tool accessibility
- Control panel reach
- Part handling operations
- Serviceability requirements
- Emergency access considerations
Visibility and Line-of-Sight Analysis
Verify operators can safely and effectively perform tasks.
Analyze:
- Workstation visibility
- Inspection operations
- HMI accessibility
- Safety-critical visual zones
- Machine operation visibility
- Human-robot interaction areas
Human-Robot Collaboration Validation
As collaborative robotics becomes increasingly common, ensuring safe and efficient interaction between workers and robots is critical.
We evaluate:
- Shared workspaces
- Collaborative task sequencing
- Operator accessibility
- Safety zone verification
- Robot reach overlap
- Human comfort and productivity
- Ergonomic impacts of cobot integration
Supported Industries
Our ergonomic simulation services support a wide range of industries including:
Automotive
- Vehicle assembly operations
- Powertrain manufacturing
- Battery assembly
- Final assembly validation
- Serviceability studies
Aerospace
- Aircraft assembly
- Structural installation
- Maintenance accessibility
- Confined-space operations
- Tool reach analysis
Industrial Equipment
- Machine assembly
- Operator workstation design
- Maintenance procedures
- Product serviceability
Consumer Products
- Manufacturing operations
- Packaging systems
- Distribution centers
- Material handling tasks
Logistics and Warehousing
- Picking operations
- Material movement
- Packaging activities
- Manual handling assessments

Why Perform Ergonomic Simulation Early?
Identifying ergonomic issues after equipment installation often results in:
- Costly redesigns
- Production downtime
- Reduced productivity
- Increased injury risk
- Workers’ compensation claims
- OSHA concerns
- Employee dissatisfaction
By evaluating human factors during the design phase, manufacturers can:
- Reduce workplace injuries
- Improve worker comfort
- Increase productivity
- Minimize costly design changes
- Improve quality and consistency
- Support workforce retention
- Accelerate equipment launches
- Improve regulatory compliance
Integrated Digital Manufacturing Expertise
Unlike firms that focus solely on ergonomics, 4D Systems integrates ergonomic analysis directly into broader digital manufacturing initiatives.
Our team combines expertise in:
- Robotic simulation
- Virtual commissioning
- Manufacturing process validation
- Factory layout development
- Mechanical design
- Controls engineering
- Human factors engineering
- Digital twin development
This integrated approach ensures ergonomic improvements align with production goals, automation strategies, and overall manufacturing performance.


Software Platforms
Our engineers leverage industry-leading digital manufacturing technologies, including:
- Tecnomatix Process Simulate Human
- DELMIA Human
- Tecnomatix Process Simulate
- DELMIA
- Siemens NX
- CATIA
Partner with 4D Systems
Whether you're designing a new manufacturing line, introducing automation, validating maintenance procedures, or improving worker safety, 4D Systems can help you optimize human performance before implementation.
Our ergonomic simulation specialists use advanced digital human technologies to create safer, more productive, and more efficient manufacturing environments while reducing project risk and cost.
Contact 4D Systems today to learn how ergonomic simulation can improve worker safety, productivity, and operational performance across your manufacturing operations.
