التفاصيل البيبلوغرافية
| العنوان: |
Acoustic detection of railcar roller bearing defects. Phase I, Laboratory test. |
| المؤلفون: |
Anderson, Gerald B., Cline, James E., Graff, Richard A., Smith, Richard L., Transportation Technology Center, Inc. |
| بيانات النشر: |
United States. Federal Railroad Administration. Office of Research and Development |
| مصطلحات موضوعية: |
Acoustic signal processing, Roller bearings, Acoustic emission tests, Wayside signals, Axle load force, Flaw detection, Bearing tests, Defects, Data collection, Laboratory tests, Field tests, Accelerometers, Tachometers, Thermocouples, Railroad cars--Bearings--Defects--Testing, Railroad cars--Axles, Acoustic emission testing, Detectors, Statistics, Databases, Tachometer |
| جغرافية الموضوع: |
United States |
| الوصف: |
A series of tests were performed at the Bearing Test Facility at the Transportation Technology Center, Inc. (TTCI) in Pueblo, Colorado, to gather acoustic and acceleration emissions for a number of roller bearing defect types designated by the rail industry as a priority. This database will be used to develop data processing techniques for the recognition of these defect types via wayside sensor systems. The laboratory test series (Phase I of this program) consisted of operating each defective bearing over a number of axle speeds and bearing radial load for each of two bearing size classes (AAR Class E and F). The bearing defect types included raceway spalls (inner and outer ring, single or in multiples), roller defects, water etching and loose inner rings (spun cones). After the tests were successfully conducted, it was determined that the database contained unique signatures of each defect type. The data was transmitted to a list of program participants on three compact discs. In Phase II of this program, a field test was conducted using the same defective bearings to gather wayside acoustic data needed for final development of wayside defective bearing detection system. The Phase II tests were completed in November 1996 and a scond report covers this field test. A third report covers Phase III, the systemevaluation test. Phase III test, also conducted at TTCI, included a series of simulated revenue service tests using a consist of eight railcars that contained wheelsets with both good bearings and specific roller bearing defects, These test were performed to evaluate improved wayside acoustic bearing detection systems. |
| نوع الوثيقة: |
other/unknown material |
| وصف الملف: |
PDF |
| اللغة: |
English |
| Relation: |
https://rosap.ntl.bts.gov/view/dot/23139 |
| الاتاحة: |
https://rosap.ntl.bts.gov/view/dot/23139 |
| رقم الانضمام: |
edsbas.95FCB0DE |
| قاعدة البيانات: |
BASE |