Wu Siping, Hunan Jiangbin Machinery (Group) Co., Ltd.
China User Conference 2026

To address the issues of stress concentration and fatigue failure in the crown of aluminium pistons for high-power-density engines under load, Jiangbin Piston Company employed PISDYN dynamics analysis software to systematically investigate the impact mechanisms of different pin bore profiles on the stress distribution in the piston crown. The study established a multi-body dynamics model encompassing the piston-connecting rod-crankshaft system, accurately simulating the transient force process of the piston under combustion pressure impact. This research provided critical theoretical foundations for the reliability design of highly reinforced aluminium pistons. It aided Jiangbin Piston in achieving weight reduction while enhancing product durability, effectively supporting the piston development and supply for engines.

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This was presented by Wu Siping, Hunan Jiangbin Machinery (Group) Co., Ltd. at the 2026 China User Conference on 20 May 2026.