Maintenance system of semi-trailer and risk priority number
archive: archived pipeline: cataloged verified
Get this paper ↗ (DOI — opens at the source; we link to it, we don't host it)
Summary
This study addresses the critical need for improved maintenance systems for semi-trailer combinations, specifically focusing on the electronic braking system (EBS). Motivated by road safety concerns, regulatory requirements, and the high frequency of air brake system failures, the authors aim to minimize system failures and their consequences, such as traffic accidents. The research utilizes Failure Modes, Effects, and Criticality Analysis (FMECA) to evaluate wear and damage patterns, ultimately proposing a new planned preventive maintenance system designed to reduce the Risk Priority Number (RPN) of potential failures. The methodology combines practical field data with theoretical risk analysis. The authors analyzed a sample of 1,470 semi-trailers from a fleet of 1,961, identifying that 800 units had experienced air-pressure system failures and 670 were found faulty during service inspections. Using this empirical data, the team constructed functional and fault networks for the EBS. They calculated RPN values using the standard formula (Severity × Occurrence × Detection) to assess the risk level of the current maintenance protocol, which is based on intervals of 75,000 to 425,000 kilometers or 6 to 36 months. The analysis revealed that current RPN values ranged from 80 to 500, deemed unacceptable for road traffic safety. Based on the FMECA results, the authors proposed a new three-level preventive maintenance system with significantly shorter intervals. The first level involves visual inspections every 45,000 km (or 4 months) to detect early manufacturing defects. The second level requires complex checks using diagnostic tools every 75,000 km (or 8 months). The third level mandates the replacement of all air brake components, except pipes and cables, every 180,000 km (or 16 months). The implementation of these stricter intervals and enhanced detection methods significantly reduced RPN values. For the first maintenance stage, RPN values dropped to a range of 60–400, and with preventive component exchanges, values further decreased to 32–80. The study concludes that while the proposed maintenance system costs 2.2 times more than the current system after 225,000 km, the investment is justified by the substantial reduction in failure risks. The current system carries a 32.9% probability of component failure after 225,000 km, with an average failure consequence cost of 40,000 Euro. The new system minimizes these failures and their severe consequences, including potential loss of human life, thereby enhancing the reliability and safety of semi-trailer operations.
Provenance
The full processing record for this entry. Every stage of this paper's journey through the pipeline is logged — what ran, with which tool and model, how many attempts it took, and when it last completed.
| Stage | Outcome | Tool | Model | Prompt | Attempts | Completed |
|---|---|---|---|---|---|---|
| discover | success | Crossref | — | — | 1 | 2026-06-24 |
| archive | success | canonical_url | — | — | 1 | 2026-06-26 |
| extract | success | cached | — | — | 2 | 2026-06-26 |
| clean | success | clean | — | — | 1 | 2026-06-25 |
| chunk | success | chunk | — | — | 1 | 2026-06-25 |
| embed | success | embed | Qwen/Qwen3-Embedding-8B | — | 1 | 2026-06-25 |
| promote | success | — | — | — | 1 | 2026-06-24 |
| summarize | success | llm | qwen3.6-27b-prismaquant | summ-v5 | 1 | 2026-06-26 |
| tag | success | vector_similarity | — | — | 6 | 2026-06-25 |
| verify | success | — | — | — | 1 | 2026-06-26 |
Summary generated by qwen3.6-27b-prismaquant on 2026-06-26; verification: verified.
Topics
Ranked by relevance to this paper. Hover a topic for its definition.