🏗️ 简支梁均布荷载挠度示意Simply Supported Beam Deflection (demo)

使用说明与常见问题How-to & FAQ

「简支梁均布荷载挠度示意」是什么？What is the Simply Supported Beam Deflection (demo) tool?

δ_max = 5 w L⁴ / (384 E I)。本地处理。可设置「均布荷载 w」、「跨度 L」、「弹性模量 E」、「惯性矩 I」。δ_max = 5 w L⁴ / (384 E I). Processed locally. Settings: UDL w, Span L, Modulus E, Inertia I.

如何使用「简支梁均布荷载挠度示意」？How do I use the Simply Supported Beam Deflection (demo) tool?

在「简支梁均布荷载挠度示意」中，填写「均布荷载 w」、「跨度 L」、「弹性模量 E」、「惯性矩 I」等参数，结果会随输入实时计算并显示在下方。In the Simply Supported Beam Deflection (demo): Fill in "UDL w", "Span L", "Modulus E", "Inertia I"; results are recalculated instantly as you type.

用什么单位？Which units should I use?

请用一套自洽的国际单位：均布荷载 w 用 N/m，跨度 L 用 m，弹性模量 E 用 Pa，惯性矩 I 用 m⁴，结果挠度为 m。混用 mm 和 MPa 时数量级会差很多。Use one consistent SI set: load w in N/m, span L in m, modulus E in Pa and moment of inertia I in m⁴; the deflection then comes out in m. Mixing mm and MPa throws the result off by large factors.

能举个计算实例吗？Can you show a worked example?

例如在「简支梁均布荷载挠度示意」中填 均布荷载 w = 1000，跨度 L = 4，弹性模量 E = 2e11，惯性矩 I = 8e-5，结果区显示：最大挠度 m：0.00020833For example, entering UDL w = 1000, Span L = 4, Modulus E = 2e11, Inertia I = 8e-5 in the Simply Supported Beam Deflection (demo) gives: Max deflection m: 0.00020833

哪些输入会被检查？Which inputs are validated?

「简支梁均布荷载挠度示意」会检查这些输入——「均布荷载 w」、「跨度 L」、「弹性模量 E」、「惯性矩 I」：必须填写，须大于 0；绝对值超过 10¹⁵ 的数也会被拒绝。不符合时结果区显示具体提示，不会给出数字。The Simply Supported Beam Deflection (demo) checks its inputs — "UDL w", "Span L", "Modulus E", "Inertia I": required, must be greater than 0; numbers above 10¹⁵ in absolute value are rejected too. When a value fails, the result area names the problem instead of showing a number.

有哪些选项可以调整？What options can I adjust?

「简支梁均布荷载挠度示意」的设置：「均布荷载 w」默认 1000；「跨度 L」默认 4；「弹性模量 E」默认 2e11；「惯性矩 I」默认 8e-5。每次生成结果都按当前设置处理。Settings in the Simply Supported Beam Deflection (demo) — "UDL w" default 1000; "Span L" default 4; "Modulus E" default 2e11; "Inertia I" default 8e-5. The result always uses the current settings.

计算结果可以用于作业或工程吗？Can I use the results for homework or engineering?

「简支梁均布荷载挠度示意」使用教科书标准公式（公式写在说明和常见问题中），适合学习和估算核对；涉及安全的工程设计请以规范和实测为准。The Simply Supported Beam Deflection (demo) uses standard textbook formulas (given in the description and FAQ), which is good for learning and checking estimates; for safety-critical engineering follow codes and measured values.

「简支梁均布荷载挠度示意」免费吗？需要注册吗？Is the Simply Supported Beam Deflection (demo) free? Do I need an account?

「简支梁均布荷载挠度示意」完全免费，无需注册或安装，打开网页即可使用，手机和电脑都能用；输入的内容只在你的浏览器本地处理。The Simply Supported Beam Deflection (demo) is completely free with no sign-up or install and works on phones and desktops; what you enter is processed only in your browser.