📚 Pre-U Cambridge Engineering: Core Knowledge Points Review | Pre-U Cambridge 工程：核心知识点梳理
The Cambridge Pre-U Engineering syllabus (9769) provides a rigorous foundation in engineering principles, bridging theoretical concepts with practical applications. This article distills the core knowledge points essential for mastering the subject, covering mechanics, materials, energy, electronics, and design. Each section is presented in a concise bilingual format to support revision.
剑桥 Pre-U 工程课程(9769)为工程原理提供了严谨的基础，将理论概念与实际应用联系起来。本文提炼了掌握该学科的核心知识点，涵盖力学、材料、能量、电子学和设计等领域。每个部分均以简洁的双语形式呈现，便于复习。
1. Statics and Force Analysis | 静力学与受力分析
Statics deals with bodies at rest or in uniform motion. The equilibrium conditions require the vector sum of all forces ΣF = 0 and the sum of moments about any point ΣM = 0.
静力学研究静止或匀速运动的物体。平衡条件要求所有力的矢量和 ΣF = 0，以及对任一点的力矩和 ΣM = 0。
A free-body diagram (FBD) is a sketch showing all external forces and moments acting on a body. It is essential for solving equilibrium problems. Common supports include pins, rollers, and fixed ends; each provides characteristic reactions.
受力图(FBD)是表示作用在物体上所有外力和力矩的简图，对求解平衡问题至关重要。常见的支座包括铰支座、滚动支座和固定端，每一种产生特定的支反力。
| Support Type / 支座类型 | Reactions / 支反力 | Notes / 备注 |
|---|---|---|
| Pin / 铰接 | Two force components: Rx, Ry | Prevents translation in x and y |
| Roller / 滚动支座 | 更多咨询请联系16621398022（同微信）
CommentsMore posts |
屏轩国际教育cambridge primary/secondary checkpoint, cat4, ukiset,ukcat,igcse,alevel,PAT,STEP,MAT, ibdp,ap,ssat,sat,sat2课程辅导，国外大学本科硕士研究生博士课程论文辅导