| 姚坚,唐锦春,孙炳楠.并行多步法及其在两铰圆拱动力响应中的应用[J].计算力学学报,1993,10(4): |
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| 并行多步法及其在两铰圆拱动力响应中的应用 |
| Parallel Multi-step Method and Its Application in the Dynamic Response Analysis of Two-hinged Circular Arch |
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| DOI：10.7511/jslx19934065 |
| 中文关键词: 并行多步法,动力响应,弹性圆拱 |
| 英文关键词:parallel multi-step method, dynamic response, elastic circular arch, |
| 基金项目: |
| 姚坚 唐锦春 孙炳楠 |
| 浙江大学土木系，浙江大学土木系，浙江大学土木系 杭州 310027，杭州 310027，杭州 310027 |
| 摘要点击次数: 1179 |
| 全文下载次数: 2 |
| 中文摘要: |
| 本文在基于个人计算机的transputer并行处理子母板系统上提出了一种结构动力分析中适合于并行处理的对时间域积分的多步法——并行多步法。并用此方法对两铰弹性圆拱在矩形荷载作用下的动力响应进行分析。算例表明,对于四处理器系统算法加速比可达3.05,效率为76.25％。对圆拱的分析表明,当中心角之半θ_0较小时,矩形荷载作用完后圆拱在偏离原静止状态的位置附近自由振动。这主要是由于几何非线性所致。 |
| 英文摘要: |
| A parallel multi-step method which is suited for parallel processing for time integration in structural dynamic analysis is presented based on the transputer parallel processing system in PC computer. This method is used to analyze the dynamic response of elastic circular arch. Under rectangular uniformly-distributed pressure, tests show that the 'Speedup' is 3. 05, 'Efficiency' is 76.25% for four transputers. When the half central angle is small, the arch will freely vibrate about the position different from the original static one after the rectangular loading is finished. This is mainly because of geometric nonlinearity. |
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