A verification of the multi-body dynamics based on impulse-basemethod

研究成果: 書籍/レポート タイプへの寄稿会議への寄与


In this paper, an impulse-based method is applied instead of penalty method to deal with the collision between rigid bodies. In penalty method, the interpenetration of the two related rigid bodies is used to calculate the contact force and several parameters like the coefficient of restitution, Young’s module and Poission’s ratio are needed to adjust for different materials. In addition, for colliding contact problem, whose interval is very short, a tiny time increment is needed, or the simulation result will be very unstable. However, as penalty method is easy to implement and understand, it is widely adopted in the engineering simulations. On the contrary, using impulse-based method can also allow us to use a larger time increment to improve the efficiency of the simulation with only one parameter (coefficient of restitution) to adjust. By only considering the relative velocity at the contact point, the interpenetration between the related rigid bodies is not needed and the process of the entire collision is simulated in one time increment to prevent a deeper interpenetration, which also mitigates the error from the unrealistic interpenetration.

ホスト出版物のタイトルRock Dynamics Summit - Proceedings of the 2019 Rock Dynamics Summit, RDS 2019
編集者Omer Aydan, Takashi Ito, Takafumi Seiki, Katsumi Kamemura, Naoki Iwata
出版社CRC Press/Balkema
出版ステータス出版済み - 2019
イベントRock Dynamics Summit, RDS 2019 - Okinawa, 日本
継続期間: 5月 7 20195月 11 2019


名前Rock Dynamics Summit - Proceedings of the 2019 Rock Dynamics Summit, RDS 2019


会議Rock Dynamics Summit, RDS 2019

!!!All Science Journal Classification (ASJC) codes

  • 地質学


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