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🌀 转动惯量计算器Moment of Inertia Calculator
计算实心球、空心球、圆柱、圆环、细杆、矩形板和质点绕常用转轴的转动惯量。Moment of inertia of spheres, cylinders, rings, rods, plates and point masses about common axes.
使用说明与常见问题How-to & FAQ
「转动惯量计算器」是什么？What is the Moment of Inertia Calculator tool?
计算实心球、空心球、圆柱、圆环、细杆、矩形板和质点绕常用转轴的转动惯量。Moment of inertia of spheres, cylinders, rings, rods, plates and point masses about common axes.
如何使用「转动惯量计算器」？How do I use the Moment of Inertia Calculator tool?
在「转动惯量计算器」中，填写「形状与转轴」、「质量 m (kg)」、「半径 r / 杆长 L / 边长 a (m)」、「外半径 r₂ / 边长 b (m)」等参数，结果会随输入实时计算并显示在下方。In the Moment of Inertia Calculator: Fill in "Shape and axis", "Mass m (kg)", "Radius r / rod length L / side a (m)", "Outer radius r₂ / side b (m)"; results are recalculated instantly as you type.
计算结果可以用于作业或工程吗？Can I use the results for homework or engineering?
「转动惯量计算器」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 Moment of Inertia Calculator 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.
「转动惯量计算器」免费吗？需要注册吗？Is the Moment of Inertia Calculator free? Do I need an account?
「转动惯量计算器」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 Moment of Inertia Calculator is completely free with no sign-up or install and works on phones and desktops; what you enter is processed only in your browser.