Transactions of Materials and Heat Treatment

Title：Research on pneumatic hammer riveting based on ABAQUS

Authors： Liu Dengwei

Unit： Institute of Aeronautical Manufacturing Technology COMAC Shanghai Aircraft Manufacturing Co. Ltd.

KeyWords： aircraft assembly hammer riveting impulse theorem upsetting head diameter upsetting head height rivet diameter

ClassificationCode：V262.4

year,vol(issue):pagenumber：2022,47(12):142-147

Abstract：

In order to reduce the experimental parameters required and the simulation calculation difficulty for the pneumatic hammer riveting simulation, a simulation analysis method of the pneumatic hammer riveting was proposed based on impulse theorem. Firstly, the principle of pneumatic hammer riveting was introduced, for the rivet, the dynamic process of pneumatic riveting gun was analyzed, and the relational expression between single impact cycle, peak value of impact force and energy transfer rate was obtained. Taking the relational expression as the theoretical basis and based on software ABAQUS, the dynamic finite element model of the pneumatic hammer riveting was establish. Consequently, the experiment of pneumatic hammer riveting was carried out, and the rivet mass, peak value of impact force and impact frequency corresponding to the experiment were input into the finite element model. At last, the obtained model results and experiment results were compared from the three aspects of upsetting head diameter, upsetting head height and rivet diameter. The relative error of the model results and the experimental results was within 2%.The results show that the proposed simulation analysis method is correct and effective.

Funds：

国家重点研发计划“智能机器人重点专项”（2019YFB1311200）

刘登伟（1979-），男，硕士，高级工程师 E-mail：liudw_neu@126.com

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