Objectives of method of choosing antiskid device settings
At present there is a need to develop a method of braking calculations for rolling stock with antiskid devices. In other words, at the stage of designing the car (carriage) calculations must be produced proving that the planned parameters of antiskid devices will not let the car enter into skidding...
| Main Authors: | , , |
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| Format: | Article |
| Language: | Russian |
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Joint Stock Company «Railway Scientific and Research Institute»
2016-12-01
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| Series: | Вестник Научно-исследовательского института железнодорожного транспорта |
| Subjects: | |
| Online Access: | https://www.journal-vniizht.ru/jour/article/view/123 |
| _version_ | 1797872283555987456 |
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| author | I. A. Zharov V. N. Kolobkov A. A. Zharov |
| author_facet | I. A. Zharov V. N. Kolobkov A. A. Zharov |
| author_sort | I. A. Zharov |
| collection | DOAJ |
| description | At present there is a need to develop a method of braking calculations for rolling stock with antiskid devices. In other words, at the stage of designing the car (carriage) calculations must be produced proving that the planned parameters of antiskid devices will not let the car enter into skidding during braking, while providing sufficient braking performance. The article proposes a method of calculating antiskid devices of rolling stock in order to assess performance of antiskid devices with selected parameters for the carriage. The principle of the proposed calculation is that firstly a value of the coefficient of adhesion between wheel and rail should be determined, where the wheel will start to fail at a given speed of skid (critical adhesion coefficient). Then a value determined at which the adhesion brake factor on the wheelset (ratio of brake force to the axle load) of antiskid device will allow entering into skid with a given speed at the critical adhesion coefficient. This brake friction coefficient will be called valid, and its dependence on the speed - “antiskid curve”. The conclusion on antiskid devices is made by comparisons based on “antiskid curve” with the calculated (theoretical) dependence of the brake coefficient of friction of the car from the speed (adhesion curve of wheels and rails). The proposed approach makes it possible to compare the impact of various factors on the performance of antiskid devices and standardize the requirements for it. On this basis, it is expected to develop a methodology for rational use of antiskid device for a particular type of car. The proposed approach wasn’t used worldwide previously. |
| first_indexed | 2024-04-10T00:57:25Z |
| format | Article |
| id | doaj.art-6ce3355f4e444306a8a81e7a0f00e00a |
| institution | Directory Open Access Journal |
| issn | 2223-9731 2713-2560 |
| language | Russian |
| last_indexed | 2024-04-10T00:57:25Z |
| publishDate | 2016-12-01 |
| publisher | Joint Stock Company «Railway Scientific and Research Institute» |
| record_format | Article |
| series | Вестник Научно-исследовательского института железнодорожного транспорта |
| spelling | doaj.art-6ce3355f4e444306a8a81e7a0f00e00a2023-03-13T10:14:32ZrusJoint Stock Company «Railway Scientific and Research Institute»Вестник Научно-исследовательского института железнодорожного транспорта2223-97312713-25602016-12-0175637137610.21780/2223-9731-2016-75-6-371-376123Objectives of method of choosing antiskid device settingsI. A. Zharov0V. N. Kolobkov1A. A. Zharov2Акционерное общество «Научно-исследовательский институт железнодорожного транспорта» (АО «ВНИИЖТ»)Акционерное общество «Научно-исследовательский институт железнодорожного транспорта» (АО «ВНИИЖТ»)Федеральное государственное бюджетное учреждение науки Институт органической химии им. Н. Д. Зелинского РАН (ФГБУН ИОХ РАН)At present there is a need to develop a method of braking calculations for rolling stock with antiskid devices. In other words, at the stage of designing the car (carriage) calculations must be produced proving that the planned parameters of antiskid devices will not let the car enter into skidding during braking, while providing sufficient braking performance. The article proposes a method of calculating antiskid devices of rolling stock in order to assess performance of antiskid devices with selected parameters for the carriage. The principle of the proposed calculation is that firstly a value of the coefficient of adhesion between wheel and rail should be determined, where the wheel will start to fail at a given speed of skid (critical adhesion coefficient). Then a value determined at which the adhesion brake factor on the wheelset (ratio of brake force to the axle load) of antiskid device will allow entering into skid with a given speed at the critical adhesion coefficient. This brake friction coefficient will be called valid, and its dependence on the speed - “antiskid curve”. The conclusion on antiskid devices is made by comparisons based on “antiskid curve” with the calculated (theoretical) dependence of the brake coefficient of friction of the car from the speed (adhesion curve of wheels and rails). The proposed approach makes it possible to compare the impact of various factors on the performance of antiskid devices and standardize the requirements for it. On this basis, it is expected to develop a methodology for rational use of antiskid device for a particular type of car. The proposed approach wasn’t used worldwide previously.https://www.journal-vniizht.ru/jour/article/view/123противоюзное устройствопараметркоэффициентсцепление |
| spellingShingle | I. A. Zharov V. N. Kolobkov A. A. Zharov Objectives of method of choosing antiskid device settings Вестник Научно-исследовательского института железнодорожного транспорта противоюзное устройство параметр коэффициент сцепление |
| title | Objectives of method of choosing antiskid device settings |
| title_full | Objectives of method of choosing antiskid device settings |
| title_fullStr | Objectives of method of choosing antiskid device settings |
| title_full_unstemmed | Objectives of method of choosing antiskid device settings |
| title_short | Objectives of method of choosing antiskid device settings |
| title_sort | objectives of method of choosing antiskid device settings |
| topic | противоюзное устройство параметр коэффициент сцепление |
| url | https://www.journal-vniizht.ru/jour/article/view/123 |
| work_keys_str_mv | AT iazharov objectivesofmethodofchoosingantiskiddevicesettings AT vnkolobkov objectivesofmethodofchoosingantiskiddevicesettings AT aazharov objectivesofmethodofchoosingantiskiddevicesettings |