| 梅甫良,曾德顺.混凝土结构非稳态温度场的新解法[J].水利学报,2002,33(9):0074-0076 |
| 混凝土结构非稳态温度场的新解法 |
| New method for calculation of transient temperature field in concrete structure |
| |
| DOI： |
| 中文关键词: 有限元 状态方程 精细积分法 非稳态温度场 |
| 英文关键词: finite element state equation fine integral method unsteady temperature field |
| 基金项目: |
|
| 摘要点击次数: 1808 |
| 全文下载次数: 122 |
| 中文摘要: |
| 本文提出了一种计算混凝土结构非稳态温度场的新方法，首先对空间域进行了有限元离散并用状态方程表示了有限元控制方程，然后利用精细积分公式导出了当前时间步结点温度向量与前一时间步结点温度向量之间关系的递推公式。算例结果表明本方法不但可行，而且比中心差分法具有较高的精度。 |
| 英文摘要: |
| A new method for calculation of transient temperature field in concrete structure is developed.The spatial domain is meshed by finite element method and state equation is used to express the control equation.The the iterative formula for calculating the temperature at the node is deduced by using fine integral method.The calculation result of an example shows ahat the method is applicable and its accuracy is better than that of center difference method. |
|
查看全文
查看/发表评论 下载PDF阅读器 |
| 关闭 |