03 // 双向 STEM 与金融计算器 // 流体、结构与电气工程计算器δ = (F × L³) / (3 × E × I)

悬臂梁端部最大挠度计算器

根据 δ = (F × L³) / (3 × E × I) 求解悬臂梁自由端最大挠度、集中载荷 F、跨度 L、弹性模量 E 或截面惯性矩 I。

δ = (F × L³) / (3 × E × I)
选择要计算的未知量(或直接在任意输入框中输入数值):当前求解: δ (mm) — Maximum Tip Deflection (mm)
计算结果

Vertical downward tip displacement in millimeters

0.001500
unit

Point load applied at the free end in Newtons

11,000,000.00

Unsupported beam overhang length in meters

0.0530

Material modulus of elasticity in Gigapascals (Steel = 200 GPa)

11,000.00
unit

Cross-sectional second moment of area in cm⁴ (1 cm⁴ = 10⁻⁸ m⁴)

0.11,000,000.00
unit
计算结果 · Maximum Tip Deflection (mm) (δ (mm))
5.3333

分步代入计算过程

01Canonical Law: δ = (F × L³) / (3 × E × I)
02Given Inputs (Base Units): F = 4,000 N, L = 2 m, E (GPa) = 200, I (cm⁴) = 1,000
03Solve for δ (mm) (Maximum Tip Deflection (mm)): δ (mm) = 5.3333

Euler-Bernoulli beam theory determines the vertical tip deflection δ of a cantilevered beam of length L, flexural modulus E, and second moment of area I subjected to a concentrated end load F: δ = (F × L³) / (3 × E × I).

常见参考标准值

Structural Steel (A36 / A992)E = 200 GPa

Standard rolled wide-flange I-beam modulus

Aluminum 6061-T6 ExtrusionE = 68.9 GPa

Deflects 2.9× more than an identical steel section

Serviceability Limit (L / 180)δ_max = L / 180 (Cantilever)

IBC structural deflection limit for overhangs

20 行数值对照表

Maximum Tip Deflection (mm) (δ (mm)) · Concentrated Tip Load (F)

Cantilever Beam Tip Deflection Calculator — Concentrated Tip Load → Maximum Tip Deflection (mm)
#Concentrated Tip Load (N)Maximum Tip Deflection (mm) (δ (mm))Δ %
011 N0.001333 -99.98%
024,000.00 N当前5.3333 0.00%
0314,895.62 N19.8608 +272.39%
0422,342.93 N29.7906 +458.57%
0529,790.23 N39.7203 +644.76%
0637,237.54 N49.6501 +830.94%
0744,684.85 N59.5798 +1017.12%
0852,132.16 N69.5095 +1203.30%
0959,579.47 N79.4393 +1389.49%
1067,026.78 N89.369 +1575.67%
1174,474.09 N99.2988 +1761.85%
1281,921.39 N109.2285 +1948.03%
1389,368.70 N119.1583 +2134.22%
1496,816.01 N129.088 +2320.40%
15104,263.32 N139.0178 +2506.58%
16111,710.63 N148.9475 +2692.77%
17119,157.94 N158.8772 +2878.95%
18126,605.25 N168.807 +3065.13%
19134,052.55 N178.7367 +3251.31%
20141,499.86 N188.6665 +3437.50%
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常见问题解答 (FAQ)

如何使用在线 悬臂梁端部最大挠度计算器 工具?+

输入已知参数或拖动滑块,即可在浏览器中实时计算并可视化 悬臂梁端部最大挠度计算器(基于关系式 δ = (F × L³) / (3 × E × I))。根据 δ = (F × L³) / (3 × E × I) 求解悬臂梁自由端最大挠度、集中载荷 F、跨度 L、弹性模量 E 或截面惯性矩 I。

可以导出或打印 悬臂梁端部最大挠度计算器 的结果吗?+

可以。支持一键复制数据、打印计算工作表或导出高清 SVG、PNG 和 CSV 文件。

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可以。点击工具顶部的“清空 / 空白开始”按钮即可重置所有输入项,随时也可一键重新加载示例数据。