Analysis And Research On HXD1 AC Locomotive's Safe Working In Dazhun Line

The heavy train traction and the tense longitudinal impulse between vehicles caused through complex lines may cause the occurrence of the train accidents.Therefore,for the railway safety,it is very meaningful to study the longitudinal dynamics of heavy haul trains,optimize the organization,group reasonably and operate safely.Combined with the actual situation of the large prospective railway,this thesis has studied the safe operation condition for HXD1 AC locomotive to draw tons of trains,according to the theory of train longitudinal dynamics.And considering heavy haul train equipments in HXD1 type,such as coupler buffer system characteristics,the thesis has established train longitudinal dynamics model.According to the model combined with the actual test,the main work involves:1.According to the actual situation of Dazhun railway transportation,the paper has analyzed the security problems faced by transport of HXD1 locomotive,such as locomotive brake,railway traction power supply facilities,security,communication signals and transportation organizations.2.The model is established in accordance with train longitudinal dynamics.According to the train traction calculation rules,theoretical value related to longitudinal dynamics model is calculated.3.By using the method of combining theory with experiment,the longitudinal dynamic calculation of theoretical analysis and operation optimization of traction train of HXD1 locomotive in Dazhun line are conducted,and a lot of experiments on line are done related to this situation.Through the train longitudinal dynamics calculation and experimental verification,the thesis has mastered the traction operating conditions under the grip HXD1 to ensure the safe operation of locomotive,and provided the theoretical basis and some test data for the safe running of trains.With the heavy haul train operating 10000 ton as an example,according to the difficulties in the process of train control,the thesis has discussed the heavy haul train controlling principle and basic methods in detail to ensure the smooth and safe operation of heavy haul train.4.With ten thousand tons of heavy haul trains in Dazhun line as examples,the thesis has discussed about the train operation principle to ensure the smooth and safe operation of heavy haul trains according to the analysis of difficulties in the process of train operation.