⚙️ 机械效益（理想 / 实际 / 效率）Mechanical Advantage Calculator

使用说明与常见问题How-to & FAQ

「机械效益（理想 / 实际 / 效率）」是什么？What is the Mechanical Advantage Calculator tool?

实际机械效益 AMA = 负载力 ÷ 施力，理想机械效益 IMA = 施力移动距离 ÷ 负载移动距离，效率 = AMA ÷ IMA。适用于杠杆、滑轮、斜面等。本地处理。Actual mechanical advantage AMA = load ÷ effort, ideal IMA = effort distance ÷ load distance, efficiency = AMA ÷ IMA. Works for levers, pulleys, ramps and more. Processed locally.

如何使用「机械效益（理想 / 实际 / 效率）」？How do I use the Mechanical Advantage Calculator tool?

填写负载力、施力以及两者的移动距离，即可得到实际机械效益、理想机械效益和效率。结果会随输入实时更新。Enter the load and effort forces and the distances each moves to get the actual and ideal mechanical advantage and the efficiency. The result updates as you type.

杠杆的 IMA？Lever IMA?

杠杆 IMA = 动力臂 ÷ 阻力臂；滑轮组 IMA = 承重绳段数。Lever IMA = effort arm / load arm; a pulley system's IMA = supporting rope segments.

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

例如在「机械效益（理想 / 实际 / 效率）」中填 负载力 N = 600，施力 N = 200，施力移动距离 m = 4，负载移动距离 m = 1，结果区显示：实际机械效益 AMA：3；理想机械效益 IMA：4；效率：75%For example, entering Load force N = 600, Effort force N = 200, Effort distance m = 4, Load distance m = 1 in the Mechanical Advantage Calculator gives: Actual MA: 3; Ideal MA: 4; Efficiency: 75%

哪些输入会被检查？Which inputs are validated?

「机械效益（理想 / 实际 / 效率）」会检查这些输入——「负载力 N」、「施力 N」：必须填写，须大于 0，须为整数；「施力移动距离 m」、「负载移动距离 m」：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 Mechanical Advantage Calculator checks its inputs — "Load force N", "Effort force N": required, must be greater than 0, must be a whole number; "Effort distance m", "Load distance m": 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?

「机械效益（理想 / 实际 / 效率）」的设置：「负载力 N」默认 600；「施力 N」默认 200；「施力移动距离 m」默认 4；「负载移动距离 m」默认 1。每次生成结果都按当前设置处理。Settings in the Mechanical Advantage Calculator — "Load force N" default 600; "Effort force N" default 200; "Effort distance m" default 4; "Load distance m" default 1. 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?

「机械效益（理想 / 实际 / 效率）」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 Mechanical Advantage 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.

「机械效益（理想 / 实际 / 效率）」免费吗？需要注册吗？Is the Mechanical Advantage Calculator free? Do I need an account?

「机械效益（理想 / 实际 / 效率）」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 Mechanical Advantage 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.