Mechanical Structure Design Concepts

Mechanical Structure Design Concepts

Assessment

Interactive Video

Physics

10th - 12th Grade

Hard

Created by

Patricia Brown

FREE Resource

The video discusses the development of lightweight, low-cost solar concentrators focusing on a power tower design. The project aims to reduce costs from $250 to $75 per meter squared by using a system-level approach. Key innovations include a foam-based mirror with a reflective film, reducing weight and cost, and a truss-based mechanical structure. Various actuator designs are explored to optimize the system.

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7 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the cost target per meter squared for the solar concentrators in this project?

$100

$250

$75

$50

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which component is responsible for adjusting the mirrors' position in a solar concentrator?

Reflective film

Controller

Pedestal

Actuator

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What material is used in the new mirror design to reduce weight?

Glass

Foam

Metal

Plastic

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How much weight reduction was achieved with the new mirror design?

From 15-20 kg to 5-6 kg per meter squared

From 5-10 kg to 2-3 kg per meter squared

From 20-25 kg to 10-12 kg per meter squared

From 10-15 kg to 3-4 kg per meter squared

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the main advantage of the truss-based mechanical structure?

Increased weight

Complexity

Higher cost

Robustness and low cost

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which type of drives were considered for the actuator design?

Pneumatic drives

Hydraulic drives

Slew drives

Rotary drives

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the primary factor that influences the cost of the mechanical structure?

Material amount

Design complexity

Maintenance requirements

Installation process