摘要
通过空间任意复杂接头的建模过程，提出一种结合实验和理论结果建立复杂结构计算模型的方法。它利用数理统计中非线性回归、误差估计等手段，识别模型参数。同时考虑不利载荷的影响，所建模型有很高的精度。
A modeling method is reported in this paper. Both theoretical analysis and experimental results were used to explore the model and the nonlinear regression was applied to the estimation of paramenters of the model. The example of complex space joint illustrate that the method is accurate even under the worset load.
关键词
建模方法
参数估计
接头模型
有限元法
modeling method
parameter estimation
nonlinear regression
joint model
