RotorShield Advanced Rotor Blade Erosion Protection, Application to V-22
Bibliographic record
Abstract
Rotorcraft operating in desert and shore environments continue to experience severe rotor blade erosion. To mitigate damage from sand and rain, rotor blade leading edges have historically been designed with a metallic abrasion strip that serves as sacrificial material to absorb the damage. Erosion of the metal abrasion strip can become a major contributor aircraft downtime and maintenance activities. Sand erosion takes place during takeoff and landing, or during ground operations where dust, sand, and other debris are lifted by the rotor downwash. Rain erosion occurs during aircraft operation in heavy rainfall. To alleviate the maintenance costs associated with rotor erosion, a number of research efforts have investigated alternative rotor blade abrasion strip treatments to develop new structures or coatings that are more resistant to erosion damage. The ONR RotorShield erosion coating system is a technology applied to the V-22 to enable extended erosion protection and achieves the goals of reduced maintenance and repair costs associated with erosion damage. The erosion coating technology is compliant with V-22 rotor blade requirements such as: weight; fatigue; ice protection system; lightning strike and aerodynamics.
Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.
How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".