Numerical Calculation of Energy Absorption Capacity of Tubular Aluminum Alloy Buffer

To achieve precise control of the energy absorption process in buffering, this study utilizes numerical calculation methods to analyze the behavior of a tubular aluminum alloy buffer. Additionally, the concept of equally spaced variance is introduced to assess the buffer's stability by measuring the fluctuation of the crushing force. Data and stress nephograms provide insights into the deformation and stress distribution of the buffer when subjected to the striker's impact. The findings demonstrate significant elastic-plastic deformation in the aluminum alloy tube, resulting in increased diameter and elevated stress near the striker. The buffering process exhibits uniform deformation with neat edges and a symmetrical stress distribution. The energy absorption capacity increases with the tube wall thickness, although not in a linear fashion. Statistical analysis reveals that Model-2 (tube wall thickness of 3 mm) exhibits superior stability, displaying less variation in the crushing force compared to other models. Future research should concentrate on optimizing the design and conducting experimental validation to enhance the model's accuracy and reliability.