Investigation on Derailment of Empty Wagons of Long Freight Train during Dynamic Braking
المؤلفون المشاركون
Wang, Kaiyun
Zhai, Wanming
Lv, Kaikai
Guo, Lirong
Ge, Xin
Yang, Min
المصدر
العدد
المجلد 2018، العدد 2018 (31 ديسمبر/كانون الأول 2018)، ص ص. 1-18، 18ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2018-09-06
دولة النشر
مصر
عدد الصفحات
18
التخصصات الرئيسية
الملخص EN
The derailments of empty wagons of long freight trains frequently occurred around the world, which caused tremendous losses every year.
Aiming at an actual derailment of empty wagons on straight line during dynamic braking, the field investigation was conducted to find the reasons of the accident.
According to the investigation results, the large coupler yaw angle and coupler force, the special connection mode by drawbars, as well as the poor conditions of wheel treads and flanges were supposed to be responsible for the accident.
The simulaiton model composed of 3 C80-type gondolas, and two RFC-type drawbars is established, the accuracy of which is validated by the field experimental test.
When the wheel-rail friction coefficient is set to be 0.7 and the coupler forces are set to be 350 kN with a coupler yaw angle of 7 degrees, the simulation results are consistent with the field investigation results.
Simulation results indicate that the coupler yaw angle, coupler force, and wheel-rail friction coefficient have significant influences on the derailment.
The increasing coupler yaw angle and coupler force will increase the risk of derailment.
For the wagon units adopting the drawbars, the riskiest wagon changes from the middle wagon to the front one as the lateral components of the coupler forces increase.
A large wheel-rail friction coefficient can raise the risk of derailment.
However, an overlarge friction coefficient will decrease the derailment risk.
According to the field investigation and simulation results, the wheel-rail friction coefficients should be limited below 0.5 to ensure the running safety of empty wagons.
Besides, the operations of the train should be optimized to avoid large coupler yaw angle and coupler force.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Ge, Xin& Wang, Kaiyun& Guo, Lirong& Yang, Min& Lv, Kaikai& Zhai, Wanming. 2018. Investigation on Derailment of Empty Wagons of Long Freight Train during Dynamic Braking. Shock and Vibration،Vol. 2018, no. 2018, pp.1-18.
https://search.emarefa.net/detail/BIM-1215145
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Ge, Xin…[et al.]. Investigation on Derailment of Empty Wagons of Long Freight Train during Dynamic Braking. Shock and Vibration No. 2018 (2018), pp.1-18.
https://search.emarefa.net/detail/BIM-1215145
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Ge, Xin& Wang, Kaiyun& Guo, Lirong& Yang, Min& Lv, Kaikai& Zhai, Wanming. Investigation on Derailment of Empty Wagons of Long Freight Train during Dynamic Braking. Shock and Vibration. 2018. Vol. 2018, no. 2018, pp.1-18.
https://search.emarefa.net/detail/BIM-1215145
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-1215145
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
أضخم قاعدة بيانات عربية للاستشهادات المرجعية للمجلات العلمية المحكمة الصادرة في العالم العربي
تقوم هذه الخدمة بالتحقق من التشابه أو الانتحال في الأبحاث والمقالات العلمية والأطروحات الجامعية والكتب والأبحاث باللغة العربية، وتحديد درجة التشابه أو أصالة الأعمال البحثية وحماية ملكيتها الفكرية. تعرف اكثر