Abstract
Aimed at the safety problem of the locomotive under the dynamic braking condition, this paper analyzes the influence of the coupler and buffer system. The coupler reposition methods of the large rotation angle coupler and the small rotation angle coupler under longitudinal coupler press force were compared. The influence of coupler and buffer system to the dynamics performance of locomotive was researched through dynamic simulation. Results show that the longitudinal coupler press force afforded by large rotation angle coupler with coupler shoulder, is larger than that of small rotation angle coupler.
Highlights
There are lots of problems facing the coupler and buffer system, such as decoupling, breakage of coupler, fracture of draft yoke pin, etc
Chang Chongyi, et al have researched the property of heavy haul freight train buffer based on the response surface, and analyzed the relationship between the main parameters of MT-2 buffer and resistance and capacity [1, 2]
The research on coupler and buffer mainly focuses on the structure strength, structure techniques of the equipment, dynamic impedance characteristics, etc; and most of the dynamics analysis of heavy haul train focus on train’s longitudinal impulse problem and its damping capacity, that is rarely related to the braking stability of coupler, and the attention paid to buffer’s static impedance characteristics is not enough [3,4,5]
Summary
There are lots of problems facing the coupler and buffer system, such as decoupling, breakage of coupler, fracture of draft yoke pin, etc. There are two different ways to provide the reposition moment by the coupler and buffer system for the two kinds of couplers, that is the stop method and coupler shoulder method, which are corresponding to small and large rotation angle couplers respectively. For the design of small rotation angle coupler, the stabilizing capability of the coupler is not considered, and the reposition equipment is only used for the automatic replacement during marshaling without considering the automatic centering replacement when the coupler suffers the longitudinal coupler press force.
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
