> For the complete documentation index, see [llms.txt](https://manual-1-3.karamba3d.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://manual-1-3.karamba3d.com/chinese_1_3_3/2-getting-started/2-getting-started-1/setting-up-a-structural-analysis/2.2.5-choose-an-algorithm.md).

# 2.2.5: 算法选择

![ 图2.2.5.1：顶端处有点荷载作用的悬臂梁的挠度和应力利用](/files/-M9XuWAYImH5oH8hzJ0R)

Karamba3D 提供了多种结构模型的分析选项。**“Analyze（分析）”**运算器（如图2.2.5.1）可计算在外部荷载作用下模型的变形和应力。通过**“ModelView（模型视图）”** 运算器子菜单**“Display Scales（显示比例)”**中的**“Deformation（变形)”**滑块，用户可以对位移的图形输出进行缩放。默认的放大倍数为50倍。如果**“Deformation（变形）”**滑块的数值范围不合适，则可以对其进行调整。

{% hint style="info" %}
双击滑块的旋钮会激活一个窗口，该窗口可用于调整滑块设置。
{% endhint %}

为了获得与利用率输出颜色相对应的数字，图2.2.5.1中使用了**“Legend(图例)”**运算器。用悬臂上一个点的法向应力除以其材料的强度即可得出**“BeamView (梁视图)”**运算器按应力方面的利用输出。负值对应压力，正值对应张力。应力的利用可能会产生误导作用：细长的梁在轴向压力作用下弯曲，并在压力达到材料强度之前即会塌陷。**“Utilization(利用率)”**运算器包括稳定性，应在这种情况下使用。


---

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