CIE KS3 Engineering: Case Study Practical Exercises | CIE KS3 工程：案例分析实战演练

📚 CIE KS3 Engineering: Case Study Practical Exercises | CIE KS3 工程：案例分析实战演练

Case studies are a vital part of CIE KS3 Engineering. They test your ability to apply theoretical knowledge to real-world problems. In this article, we will work through a complete engineering case study: designing a bicycle shelter for a secondary school. By following the steps, you will gain confidence in analysing, creating, and evaluating engineering solutions. Let’s begin with understanding what the client really needs.

案例分析是 CIE KS3 工程的重要组成部分。它考查你将理论知识应用于实际问题的能力。本文将带你完成一个完整的工程案例：为一所中学设计一个自行车棚。通过逐步演练，你将自信地掌握分析、设计和评估工程方案的方法。首先让我们理解客户的真正需求。

1. Understanding the Design Brief | 理解设计需求

Every engineering project starts with a design brief. It describes the problem, the client’s requirements, and any constraints. For our school bicycle shelter, the brief includes several key points. Take time to read and highlight each one before you start designing.

每个工程项目都从设计需求说明开始。它描述了问题、客户的要求以及各种限制条件。对于我们学校的自行车棚，需求说明包括了几个关键点。在开始设计之前，请仔细阅读并标出每一项。

• Capacity: The shelter must hold at least 50 bicycles during peak arrival and departure times, with enough space to prevent handlebar clashes.

• 容量：车棚必须在上下学高峰时段容纳至少 50 辆自行车，并提供足够的间距防止车把碰撞。

• Weather protection: Full cover from rain and harmful UV rays is required. The design should also allow some ventilation to avoid dampness and mould.

• 天气防护：需要完全遮挡雨水和有害紫外线。设计还应保证一定的通风，避免潮湿和发霉。

• Budget: Total material and construction cost must not exceed £2000. This forces us to think carefully about material selection and simplicity.

• 预算：材料与施工总成本不得超过 2000 英镑。这迫使我们仔细考虑材料选择和结构的简洁性。

• Sustainability: Use recycled or renewable materials where possible, and aim for a design that can be disassembled and recycled at end of life.

• 可持续性：尽可能使用回收或可再生材料，并追求可拆解和报废后回收的设计。

• Aesthetics: The shelter should blend with the school’s modern brick-and-glass architecture, using neutral colours and clean lines.

• 美观：车棚应融入学校现代砖混玻璃的建筑风格，采用中性色彩和简洁线条。

• Maintenance: It must be easy to clean, resistant to vandalism, and durable for at least 10 years with minimal upkeep.

• 维护：必须易于清洁、耐故意破坏，并且至少耐用 10 年且维护成本极低。

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2. Identifying Stakeholders | 识别利益相关者

Stakeholders are individuals or groups who have an interest in the design. Identifying them early helps ensure your solution meets everyone’s real needs. The main stakeholders for this school shelter project are listed below.

利益相关者是对设计有利害关系的个人或群体。提前识别他们有助于确保你的方案真正满足各方需求。本校园车棚项目的主要利益相关者如下。

• Students and cyclists: They need secure, easy-to-use racks, a dry environment on rainy days, and good lighting for safety in darker months.

• 学生和骑车者：他们需要安全、易用的车架，雨天保持干燥的环境，以及冬季较暗时段的良好照明以确保安全。

• School staff and administration: They want a cost-effective, low-maintenance structure that does not obstruct pathways and reflects the school’s positive image.

• 教职员工和校方：他们希望结构经济高效、维护成本低，不阻塞通道，并体现学校的正面形象。

• Maintenance team: They require durable materials, easy access for sweeping and washing, and anti-vandal features such as anti-graffiti coatings.

• 维护团队：他们需要耐用的材料，便于清扫和冲洗的通道，以及防涂鸦涂层等抗破坏设计。

• The local community: Neighbours may be concerned about visual impact and noise during construction, so the design should be considerate.

• 当地社区：邻近居民可能担心视觉影响和施工噪音，因此设计应体现周到考虑。

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3. Researching Existing Solutions | 调研现有方案

Before generating your own ideas, research existing bicycle shelters in parks, transport hubs, and online. Analyse their strengths and weaknesses. This desk research will inspire your own concepts and help you avoid known pitfalls.

在生成自己的创意之前，先调研公园、交通枢纽和网络上的现有自行车棚。分析它们的优缺点。这项桌面研究将激发你的概念灵感并帮助你避开已知的缺陷。

Here are three typical shelter types compared:

以下是三种常见车棚类型的对比：

Shelter Type	类型	Advantages	优点	Disadvantages	缺点
Cantilevered steel frame with polycarbonate roof	悬臂式钢架聚碳酸酯顶棚	No front columns, open feel, lightweight	无前柱，开放感，重量轻	Needs strong foundations, can be expensive if not designed simply	需要坚固的基础，设计不简洁可能昂贵
Traditional four-post shelter with timber beams and felt roof	传统四柱木梁油毡顶棚	Low cost, natural appearance, easy to build	成本低，自然外观，易于搭建	Timber requires treatment; roof may degrade; posts can obstruct movement	木材需防腐处理；屋顶可能老化；立柱阻碍通行
Green roof shelter with living sedum roof	景天植物绿色屋顶车棚	Excellent insulation, absorbs rainwater, enhances biodiversity	隔热优异，吸收雨水，提升生物多样性	Heavy roof requires strong structure; higher maintenance; initial cost higher	屋顶重，需强壮结构；维护成本高；初始费用高

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4. Generating Design Ideas | 产生设计创意

Now it is time to brainstorm. Produce at least three different concepts using quick sketches and annotations. Do not judge any idea at this stage – quantity matters first. For example, sketch a curved steel canopy with tension cables, a timber frame with polycarbonate panels, and a modular recycled plastic shelter with integrated seating.

Published by TutorHao | KS3 工程 Revision Series | aleveler.com

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