原文传递
Experimental and Analytical Investigation of Mower-Thrown-Object Phenomena; Research rept. (Interim)
| 题名： | Experimental and Analytical Investigation of Mower-Thrown-Object Phenomena; Research rept. (Interim) |
| 作者： | DaSilva, R. E.; Marshek, K. M.; Kannapan, S. M. |
| 关键词： | Roadside hazards; Accident prevention; Roadside maintenance; Mowing; Traffic safety; Road shoulders; Accident analysis; Highway maintenance; Traffic flow; Weed control |
| 摘要： | This report presents the results of an analytical and experimental investigation of a mower-thrown-object phenomena. The experimental analysis was conducted to test the theoretical model by using a scale size mower model. High speed photography was used to determine the discharge characteristics of the mower-thrown object. The results show that (1) a higher value of the coefficient of restitution increased the velocity of the thrown object, (2) an increase in the blade rpm caused the object velocity to increase proportionally, (3) an increase in the inertia of the blade significantly increased the object velocities, (4) an increase in the distance of the point of contact of the object with the blade, from the center of rotation, increased the object velocities, and (5) the location of the pivot point played a major role in the object velocity after impact. The comparison of a straight bar blade and a pivoted bar blade (pivot located at the mid point) indicated that the pivoted blade construction resulted in approximately 28 percent smaller magnitudes for the object velocities. |
| 总页数： | 126p |
| 报告类型： | 科技报告 |
相关文献
- N AN EXPERIMENTAL AND ANALYTICAL INVESTIGATION F OF MOWER-THROWN-OBJECT PHENOMENA
- STUDY AND RECOMMENDATIONS FOR THE REDUCTION F OF MOWER-THROWN-OBJECT ACCIDENTS
- On the Potential Use of the Terminal Doppler Weather Radar Gust Front Detection Algorithm on the WSR-88D System. Part 2: Detecting Non-Gust Front Convergent Weather Phenomena.
- Site Investigation Report. Volume 2. 120th Fighter Interceptor Group, Montana National Guard, International Airport, Great Falls, Montana.
- Some spots on Earth - a simple mechanism for location reference.
- Portable Profiler for Pavement Profile Measurements. Technical rept.
检索历史
应用推荐
