R66 Bus Skin — Sr2 Ece

Structural Integrity and Compliance Validation of SR2 ECE R66 Bus Skin

The primary objective of this project was to design, analyze, and validate the outer skin structure of an SR2 series bus in accordance with ECE R66 (Economic Commission for Europe Regulation No. 66). This regulation mandates the strength of the superstructure above the passenger compartment to ensure survivable space during a rollover event. sr2 ece r66 bus skin

| Parameter | Value / Status | |--------------------------|--------------------------------| | Regulation | ECE R66 (Rev. 2) | | Max. allowable intrusion | 150 mm | | Actual max. intrusion | 87 mm | | Skin material | Al 5083-H111 (2.5 mm thick) | | Fastener spacing | 150 mm (self-tapping + adhesive) | | Simulation result | PASS | Structural Integrity and Compliance Validation of SR2 ECE