Kon-41.3006Final WorkKaur Jaakma18th February 2016

Index

Publication of the final work

• What, when, why?

Design

• Some hints how to get the work started

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Spacecraft

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What Is a Spacecraft?

“A spacecraft is a vehicle, or machine designed to fly in outer

space. Spacecraft are used for a variety of purposes, including

communications, earth observation, meteorology, navigation,

space colonization, planetary exploration, and transportation of

humans and cargo.”

Source: Wikipedia

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About Final Work

Personal exercise

~80 hours of work

The objective is to demonstrate your understanding of the

basics of the parametric design

To demonstrate your ability to use tools on your own for

achieving a predefined goal

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Requirements

Main assembly (bottom-up solid design)

At least 15 different parts

At least one (1) subassembly

At least three (3) different kind of parameters

• At least two (2) of them affect the dimensions of the parts• Asked from user using INPUTThree (3) engineering drawings (ISO standard)

• Main assembly with BOM and exploded view• Two (2) part drawings (not the simplest ones)Written report using given template

Made with Creo Parametric and works in CAE class setup

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Bottom-up Design

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Bill Of Materials

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Returning

Files to the network folder

• \\work\courses\T\Kon\41\3006\submissions\ [student id]

• Only the latest versions (purge)

Printed report

• Template at MyCourses

• Engineering drawings as attachment

• Red mailbox in the CAE class (K344)

DL for both Monday 11th April 2016 at 12:00

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Belated Final Work (Plan B)

Extension can be applied until 4th April 2016 at 12:00

By doing that, your final work grade will be lowered by -1

• Course Grade = Final Work Grade – 1

• Even if you return your work before actual DL (11th)

The Belated DL will be on Monday 16th May 2016 at 12:00

Do not return partial works, apply for an extension instead!

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Mid-term Exam

This week you will have a mid-term exam in your weekly

exercise group!

• No need to enroll

Modeling exercise

• You only need a classroom computer

and a pen

Don’t be late! (the door may be closed…)

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Creo Parametric 3.0

Found at:

• CAE class (K344)

• CAD class (K345)

• All classes in Maarintalo

• U257 and U351 in Otakaari 1 U-wing

Every class has the same configuration as CAE class

• 3.0 M050 version

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Creo Student Edition

Possibility to install Creo 3.0 to your home computer

• Download link

• Deal between you and PTC- All support through them

• Customization files available at MyCourses in Creo sub-page- Use those to make your Creo behave like in our teaching class

• Differences to University Edition:- No Simulate, Mankin, Illustrate, Schematics

Using at your own risk

• Backups, configuration etc.

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DesignSome hints to get the work done

Design Stages

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Ulrich & Eppinger. 1995. Product Design and Development.

Design Stages

Concept Development

System-Level Design

Detail DesignTesting and Refinement

Production Ramp-Up

Process seen in “CAD World” in the context of a Final Work

Planning

CAD modeling Submitted

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Design States in CAD Domain

Concept Development

• Scope of the work

• Main parameters

System-Level Design

• BOM structure, preliminary relations, Design Intent

Detail Design

• Creating parts, updated relations

Testing and Refinement

• Changing & testing parameters etc.

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How to start?

Find a subtopic that interests you

• Market research, different ways to do the same task

Write down your own requirements / draw a product sketch

• Can be done anywhere at anytime

• Its not done when its not written down!

Define main parameters and product structure

• It’s very hard to add parameters afterwards

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Subtopic

For example in the spacecraft case

• Communications

• observation

• colonization

• transportiton

• Etc.

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Market ResearchLooking what others have done

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Cross, N., Engineering Design Methods

Requirements by Sketching

“One picture is worth a

thousand words”

Easy way to plan product

structure

• Can support requirements table

• Helps to plan parameters

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Time Allocation

Beginning is the most critical part

• Start as early as possible

• It’s a light and funny part

Reserve time to test your ideas

• Make testing models; throw away when not needed

• It may be hard in the beginning, but your skills will improve

• Best way to learn a program is to play with it

Make iterations

• The first idea/model is not always the best one

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Time Allocation

Make a time table

• You can’t do anything in the last week

• Make a weekly plan and goals

Concentrate on the right things

• Its not how much you work, but how efficient you are

• Time used is not a grading criteria!

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Top Reasons for Bad Grade

Failures

Started too late

No preplanning

• Didn't take note on what we grade on

• Parameters didn’t do much

Bad understanding on how the software works

If you want to later fix the grade,then you need to do the end work again.

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Fixes

Start on time

• The planning part is the lightest

• Experiment with the software

• Define parameters in the beginning

Read the final work instructions

Keep all files in one folder

Only one Creo session open

Backup your work

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