| 摘要: |
| 利用速卷积来近似计算随机响应中卷积计算，给出了矩形法，梯 形法和抛物线形法３种格式。比较了直接法和快速卷积法的计算量。结果表明计算速度可提高１个数量级。 |
| 关键词: 结构动力学 快速卷积 数值积分 |
| DOI： |
|
| 基金项目:国家自然科学基金 |
|
| Schemes to Approximate Continuous Convolution by Fast Convolution |
|
|
|
| Abstract: |
| The fast convolution is used to approximate random response, three schemes involvingrectangular, trapezium and Simpson' rule are proposed. The calculation times are compared between direct method and fast method, and the result shows that the computing speed of the newalgorithms may be faster 10 times than that of the old one. |
| Key words: structure dynamics,fast convolution,numerical integration |
