Finite Element Analysis (FEA): Self Loading Mixture – CABIN – ROPS – FOPS
Project Scope
- Perform finite element analysis (FEA) to evaluate deflection behavior of the SLM cabin structure
- Primary objective: Minimize the risk of a seat-belted operator being crushed during rollover or falling object events
Business Challenges
- FOPS Compliance: Impact energy requirement of 11,600 J (Level II) as per ISO 3449:2005, based on drop height and mass
- ROPS Compliance: Evaluation of cabin strength under lateral, vertical, and longitudinal forces, including energy absorption, as defined in ISO 3471:2008
ARi’s Solutions
- Cabin model meshed with shell elements (primarily quadrilateral)
- For FOPS analysis, surface loads applied at the DLV (Deflection Limiting Volume) area on the cabin and machine frame
- For ROPS analysis, sequential load cases applied to simulate real-world force directions
ARi’s Value Proposition
- Design Gaps Identified: Early FEA analysis highlighted key design and manufacturing issues, enabling proactive corrections
- Cost & Time Savings: Avoided prototype iterations, reducing development time and testing costs
- On-Time Delivery: Delivered ahead of schedule, working through holidays to meet the customer’s critical deadline
- Compliance & Safety: Ensured ISO compliance, accelerating certification and reducing the risk of rework
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https://www.arigs.com/wp-content/uploads/2025/11/Finite-Element-Analysis-FEA-Self-Loading-Mixture-CABIN-ROPS-FOPS.pdf