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Rigid body dynamics, MHA092

Status: Avslutad
Öppen för svar: 2007-12-20 - 2008-01-25
Antal svar: 25
Procent av deltagarna som svarat: 50%
Kontaktperson: Anders Boström»
Utbildningsprogram som genomför enkäten: Chalmers
Utbildningsprogram studenten tillhör: Maskinteknik 300 hp

Your own effort

1. How many hours per week did you spend on this course?

We mean total time, that is, it comprises the time you spent in class and the time you spent on your own work. Try to estimate the average time over the entire study period.

25 svarande

<15 hours/week»4 16%
Around 20 hours/week»9 36%
Around 30 hours/week»9 36%
Around 40 hours/week»3 12%
>50 hours/week»0 0%

Genomsnitt: 2.44

- Except for the project, the time was only spent in class. I did not have time to solve any other problems.» (<15 hours/week)
- An extremely work-intensive period, mostly because of the Material Mechanics-course.» (Around 30 hours/week)
- The last part C of the project was very long» (Around 40 hours/week)
- About normal, in the week the project was due it went up, the other week down a little bit.» (Around 40 hours/week)

2. Attendance on lectures

How many per cent of the lectures did you attend?

25 svarande

<25%»1 4%
25-50%»0 0%
50-75%»0 0%
>75%»24 96%

Genomsnitt: 3.88

- alla» (>75%)
- Actually >90%.» (>75%)

3. What was your priority of this course compared to the other course(s) you followed?

25 svarande


Much lower»7 28%
Somewhat lower»5 20%
Equal»4 16%
Somewhat higher»4 16%
Much higher»5 20%
No opinion»0

Genomsnitt: 2.8

Fördelat på olika grupper:

Other course Material mechanics: (16 st)
Much lower7 43%
Somewhat lower3 18%
Equal2 12%
Somewhat higher2 12%
Much higher2 12%
No opinion0

Genomsnitt: 2.31

- Becouse the other course took much more time.» (Much lower)
- the other course (Material mechanics) took increadibly alot of time» (Much lower)
- den andra kursen krävde mer för att klara av inlämningar etc.» (Much lower)
- Due to the continuous examination in Material Mechanics.» (Much lower)
- Because of the material mechanics computer assignment workload this course was suffering.» (Somewhat lower)
- I was much more interested in this course, but the other one stole large amounts of time. My ambition was to get the highest grade in both courses but I had unyielding ambitions of understanding this course thoroughly.» (Somewhat lower)
- The rigid body dynamics course was much more interesting and fun, so it had a higher priority. However, the Material mechanics was way more time consuming, maybe twice as much. So as I wanted to spend more time on RBD I ended up studying MM all the time instead.» (Somewhat higher)

Other course Digital control: (5 st)
Much lower0 0%
Somewhat lower1 20%
Equal0 0%
Somewhat higher2 40%
Much higher2 40%
No opinion0

Genomsnitt: 4

Other course Turbulence: (1 st)
Much lower0 0%
Somewhat lower1 100%
Equal0 0%
Somewhat higher0 0%
Much higher0 0%
No opinion0

Genomsnitt: 2

Other courses: (3 st)
Much lower0 0%
Somewhat lower0 0%
Equal2 66%
Somewhat higher0 0%
Much higher1 33%
No opinion0

Genomsnitt: 3.66

- Other course: Computational fluid dynamics» (Equal)

Teaching and course administration

4. To what extent has the teaching been of help for your learning?

25 svarande

Small extent»1 4%
Some extent»3 12%
Large extent»12 48%
Great extent»9 36%

Genomsnitt: 3.16

- Good structure and good lectures.» (Great extent)
- The solved problems and examples from the lectures were an invaluable reference when solving problems on my own.» (Great extent)

5. To what extent has the the course literature and other material been of help for your learning?

24 svarande

Small extent»0 0%
Some extent»7 29%
Large extent»13 54%
Great extent»4 16%

Genomsnitt: 2.87

- All but the Lagrangian mechanics were just repetition of the mechanics courses from my first year at Chalmers. Statics and Dynamics by Meriam, Kraige.» (Large extent)

6. What is your opinion of the compendium?

25 svarande

Very bad»0 0%
Rather bad»2 8%
Rather good»15 60%
Very good»8 32%
No opinion»0

Genomsnitt: 3.24

- The text is well written and the content is just right. But the layout of the text isn"t very good. The layout is more like the layout of a novel and not of a teaching book. What"s missing is clarity, or visual structure. It would be great if important parts were highlighted in some way, maybe definitions could be inside boxes (instead of just mentioned inside the text/or not mentioned at all), and the same goes for conclusions derived from other equations and discussions. Just highlight them in some manner to make them stand out from the other equations. It is very important to be clear about definitions and concepts. The other thing that wasn"t too good about the compendium was the lack of figures. Many discussions and concepts would benefit enormously from simple, yet very effective, figures or illustrations. (A very good and easy to use software for vector graphics is Xfig if you"re using Linux or Unix. The resulting figures are then easy to add to your Latex document.)» (Rather bad)
- More pictures are needed to explain some parts.» (Rather good)
- It had been good with some examples» (Rather good)
- It would be a "very good" if it included examples and figures» (Rather good)
- Was needed in large extent for the project.» (Rather good)
- it is better to put some examples in the compendium. although the course was complete during the quarter with problem solving sessions. » (Rather good)
- The compendium was brilliant. The english was unexpectedly good and to one who seeks a deep understanding of the concepts of the course, the long explanations in plain conversational text of these concepts were absolutely gold worth, as we say in Sweden.» (Very good)

7. What is your opinion of the problems for home work?

25 svarande

Very bad»0 0%
Rather bad»3 14%
Rather good»11 52%
Very good»7 33%
No opinion»4

Genomsnitt: 3.19

- Some basic steps in order to see how the solution is obtained is needed.» (Rather bad)
- monkey business rather than learning.» (Rather bad)
- They were difficult» (Rather good)
- har bara hunit med att gör endel av talen, då arbetsbelastingen i den andra kursen varit så pass hög. Men de jag gjort har varit bra.» (Rather good)
- The problems were good, but a solution to them would have been a great help.» (Rather good)
- Some solutions would have been helpful since the problems required quite long calculations» (Rather good)
- At least answers shoud exist to all excercises. Perhaps also some clues of how to approach a few of the problems.» (Rather good)
- I really like these kinds of problems, and the ones in this course were no disappointment.» (Very good)
- Jag tillbringade för mycket tid med inlämningen.» (No opinion)
- didn"t have time for those» (No opinion)
- No opinion, since I did not do any. » (No opinion)

8. How well did the course administration, web page, handouts etc work?

25 svarande

Very badly»1 4%
Rather badly»0 0%
Rather well»12 48%
Very well»12 48%

Genomsnitt: 3.4

- Problems and solutions had errors and where barely readable in PDF format. The collection of formulas were not available online.» (Very badly)
- Some handouts were not uploaded to the web page. » (Rather well)
- The table with formulas came too late..» (Rather well)
- Det har fungerat bra, bra att få allt ut delat. Ett minus att Japp kom ut så sent, men jag hade redan den svenska versionen så jag klarade mig.» (Very well)
- Nothing to complain about.» (Very well)

9. What is your opinion of the lectures?

25 svarande

Very bad»0 0%
Rather bad»0 0%
Rather good»9 39%
Very good»14 60%
No opinion»2

Genomsnitt: 3.6

- Quite many things are really good about the lectures. + You use the black board. + You explain what you do, as well as your notations + You write on the black board what you want the students to learn. + The lectures are well prepared in advance These things sound very natural but unfortunately not all lecturers do like this. What could be better in the lectures is how new ideas/concepts are introduced. It would be good to to this a little bit slower and more carefully. It might even be a good idea to do explain the theory further instead of doing examples. The Coriolis force is a good example of this. I think that many students would get the hang of it quicker if it had been introduced as something they can refer to and not only as a term in the acceleration expression. (Like what happens if you walk inside a carousel)» (Rather good)
- Very instructive lectures. Because they conformed to such a degree with the compendium, it was instructive to follow them while looking in it.» (Very good)
- They were really well-organized.» (Very good)

10. What is your opinion of the rpoblem solving sessions?

25 svarande

Very bad»0 0%
Rather bad»1 4%
Rather good»7 29%
Very good»16 66%
No opinion»1

Genomsnitt: 3.62

- I think half of the problem solving sessions should be changed to supervised solving session. so one can solve the problems and ask for help only if needed.» (Rather bad)
- Jonathan was very good at explaning» (Very good)
- Jonathan was very good» (Very good)
- The instructor was very good and my notes were vital when understanding the problem solutions later on my own. I would appreciate the possibility to get everything on hand-out and not attend the sessions, since I never can follow any solutions on the black board, I have to do it in my own tempo, but this would probably mean double work for the instructor so it would hardly work.» (Very good)

11. What is your opinion of the project?

25 svarande

Very bad»1 4%
Rather bad»3 12%
Rather good»10 40%
Very good»11 44%
No opinion»0

Genomsnitt: 3.24

- Forcing handwriting is meaningless. It changes nothing but making the reports look bad and consume a lot of time. » (Very bad)
- monkey business. We could do more in Adams instead of doing all that stupid differentiations.» (Rather bad)
- We had to spend much time to do the same thing over and over again, maybe we could have learned more and not done it so many times instead. And much time was spent to finding small misstakes in part C, which didn"t give much.» (Rather good)
- Very time-consuming.» (Rather good)
- A bit to long calculatons perhaps, but in general it was a good assignment. A good way to learn the course.» (Very good)
- Det var väldigt bra, det känns som man fick gå igenom en heldel av de centrala delarna i kursen. Jag kan tänka mig(/tror) att det var en lagom nivå på komplexitet med en trehjuling eller liknande. » (Very good)
- Think i learned most by doing the project» (Very good)
- Not very much to do in the beginning of the course, but much more in the later part.» (Very good)
- Very instructive, I learned very much from it. Although, the last part had me awake for 38 hours in a row, dedicating all that time to the project, and this was not due to bad planning. The main reasons were that I had to learn Mathematica from scratch and that the number of steps involved in the problem solution was huge! I was merely lucky that someone close by knew the ReplaceAll-command, otherwise I wouldn"t know how to solve for the different variables. Instructions for beginners is needed next year.» (Very good)

12. What is your opinion about the ADAMS labs?

25 svarande

Very bad»0 0%
Rather bad»3 12%
Rather good»15 60%
Very good»7 28%
No opinion»0

Genomsnitt: 3.16

- Good to have the same system to work on in both the project and computer lab. But the adams-intro must be better, I learned very little in the inro that I had use for later in the lab. The intro was to basic.» (Rather good)
- Hard to learn the program, we had to ask a lot.» (Rather good)
- It was very interesting to learn ADAMS. Although we never got any information about whether we had passed the project.» (Rather good)
- I think it was better to have more Adams.» (Rather good)
- Det kan nog vara bra om varje elev gör den egen model i ADAMS, men att man kan skriva en rapport tillsammans.» (Very good)
- A really good part in the course.» (Very good)

Study climate

13. How is the general study climate in the master programme?

25 svarande


Very bad»0 0%
Rather bad»2 8%
Rather good»16 69%
Very good»5 21%
No opinion»2

Genomsnitt: 3.13

Fördelat på olika grupper:

Applied mechanics: (18 st)
Very bad0 0%
Rather bad2 12%
Rather good11 68%
Very good3 18%
No opinion2

Genomsnitt: 3.06

- I do not know why, but we do not work very much together. It is a big difference compared to my first three years at Chalmers.» (Rather bad)

Systems, signals and mechatronics: (5 st)
Very bad0 0%
Rather bad0 0%
Rather good3 60%
Very good2 40%
No opinion0

Genomsnitt: 3.4

- Systems, Control & Mech.» (Rather good)
- Egengligen är jag Erasmus student...» (Very good)

ERASMUS: (2 st)
Very bad0 0%
Rather bad0 0%
Rather good2 100%
Very good0 0%
No opinion0

Genomsnitt: 3

Other: (0 st)
Very bad0 0%
Rather bad0 0%
Rather good0 0%
Very good0 0%
No opinion0

Genomsnitt: 0

14. How were the opportunities for asking questions and getting help?

25 svarande

Very poor»0 0%
Rather poor»0 0%
Rather good»2 8%
Very good»22 88%
I did not seek help»1 4%

Genomsnitt: 3.96

- Väldigt bra att ni har en "öppen dörr" så man kan komma upp och ställa frågor.» (Very good)
- Anders door is always open which is very good for us, maybe not for him though» (Very good)
- Both Anders and Jonathan were very easy to get a hold of outside the class. Very helpful, great work!» (Very good)
- The "open doors" mentality was appreciated.» (Very good)

15. How well has cooperation between you and your fellow students worked?

25 svarande

Very poorly»0 0%
Rather poorly»0 0%
Rather well»6 24%
Very well»16 64%
I did not seek cooperation»3 12%

Genomsnitt: 3.88

- We did help each other quite much in the project. But mostly in the end, we could have done it a lot better. » (Rather well)
- More discussion than I had imagine before the course, which made learning easier.» (Very well)
- Very good, we had some good results.» (Very well)

16. How was the course workload?

25 svarande

1 (Too low)»0 0%
1 4%
9 36%
14 56%
5 (Too high)»1 4%

Genomsnitt: 3.6

- The last part of the project maybe took too much time, especially since it was in LV6 (you want to start study for the exams in this period).» (3)
- En hög nivå, men ändå en bra nivå.» (4)
- Part C of the project required its share of hours.» (4)
- The analytical project was too much.» (4)
- The project took a lot of time.» (4)

Summarizing questions

17. How well did the course fullfill your expectations?

25 svarande

1 (not at all)»0 0%
1 4%
5 20%
13 52%
5 (very well)»6 24%

Genomsnitt: 3.96 (bidrar till totalt genomsnitt/jämförelseindex)

- I had expected more concepts that would have been new to me.» (2)

18. What is your general impression of the course?

25 svarande

Poor»0 0%
Fair»0 0%
Adequate»4 16%
Good»12 48%
Excellent»9 36%

Genomsnitt: 4.2

- The best course so far in the master program, one of the best so far at Chalmers.» (Excellent)
- I"m very interested in this particular science and found that the course lived up to my expectations.» (Excellent)

19. What is your opinion of the exam?

25 svarande

Very bad»1 5%
Rather bad»5 25%
Rather good»11 55%
Very good»3 15%
No opinion»5

Genomsnitt: 2.8

- To much weight on meaningless calculation.» (Rather bad)
- Jag skulle behöva mer tid för att kunna förbereda mig för tentan och klara den.» (Rather bad)
- To little variation of the problems... and some was time consuming...» (Rather bad)
- Det var bra att det bara var 4 frågor, hade ont om tid. Med 5 frågor hade det varit väldigt ont om tid.» (Rather good)
- I was surprised that two of the questions included friction, since I do not think we put so much focus on this during the course. But really, four hours is a short time if you need to figure out how to solve the problems. I also think you should be able to use an optional calculator (i.e. TI-89). » (Rather good)
- The concept of friction was not something we had specifically seen much of in the course, still, we saw two problems related to friction, which was a bit strange. Other than that, good exam.» (Rather good)
- It was rather difficult.» (Rather good)
- I think it is a bit difficult to take an exam that really needs 4 hours of just calculating! At the end I could not really find my way out!» (Rather good)
- No big surprise.» (Very good)
- I did not take the exam since it was at the same time as the Digital control exam and I didn"t have time to study enough to take the Digital control exam at the earlier occation.» (No opinion)

20. What do you like the system that you can get a pass by doing the project and ADAMS labs without doing the exam?

25 svarande

Very bad»0 0%
Rather bad»0 0%
Rather good»10 45%
Very good»12 54%
No opinion»3

Genomsnitt: 3.54

- It is of course possible to copy someone elses project but I don"t think people do that on this level of education. I thought the number of bonus points with respect to the grading levels on the exam was good, given that you had them, it is a bit unfair to raise the grading levels on the exam (if I am not wrong here, wasn"t as much as 18/20 required for the grade 5?)» (Rather good)
- Det är bra, det skulle kanske kunna läggas lite mer vikt vad man kan göra för reflektioner över de resultat man kommit fram till. Så det inte bara räcker med att utföra ett antal "ekvationer/beräkningar". Ett förslag är att man fick poäng på varje del i projektet och det krävdes ett vist antal poäng för att få en 3a i kursen. Tex: 3p rätt eller mindre fel, 2p något lite större fel, 1p gjort ett seriöst försök men ett antal fel. Sedan krävs det 7p för att få ett godkänt.» (Very good)
- Not just very good, excellent :) It is a relif studying for an exam knowing you won"t fail it.» (Very good)
- It motivates students to put more effort into the course.» (Very good)
- As you can pass due to a continous hard work during the period through this system, it is less likely to fail because of a bad mood during the exams time! And it certainly covers all the learning outcomes that are going to be acquired in the course.» (Very good)

21. What should definitely be preserved to next year?

- The project»
- I liked the idea of the project and think that should be preserved»
- That the lab and project is about the same system, that i very good.»
- Some kind of project. And it was really good to have many days in the tentavecka to study (Material Mechanics was on saturaday and RBD was on thursday).»
- Det mesta är bar.»
- Project»
- The ADAMS-lab, it could be a larger part of the course. Knowledge in ADAMS is asked for by the industry.»
- The project and the adams lab makes a pass on the course.»
- The examiner»
- Project (some sort of)»
- The course compedium was really great. It should be revised to remove any errors but other than that it is perfect for the course.»
- The course is ok.»
- Course project, problem solving sessions»

22. What should definitely be changed to next year?

- Can"t really think of anything»
- inget direkt.»
- The project should start a week earlier»
- An introductory text to Mathematica and, most importantly, instructions on how to do some specific operations required for solving Part C (i.e. the ReplaceAll-command, FullSimplify and so on.) MUST be included, or linked to, next year.»
- The analytical project should be less.»
- Nothing»
- It would be better to make the students to make use of computer calculations since it seems that doing such a heavy calculation by hand is not so efficient considering the time it takes and the outcome it has! »

23. Additional comments

- Problems with cheating? The computers are not to blame, report students who cheat, not force them to rewrite meaningless lines of text by hand.»
- I had high expactations on this course, becasue I love dynamics and mechanics. I was not disappointed.»
- Some students had problems using mathematica, a short introduction, like in ADAMS, could be helpful for them.»
- Overall the course was very good. I think it was better to have a couple of assignments in ADAMS about the last part of the course. Since the analytical solving of the oscillations with an external force was very difficult, it was better to do it in ADAMS as well. But this re»
- The course schedule was really organized according to the learning outcomes considered for the course, and I really enjoyed the course!»
Genomsnitt totalt för detta stycke: 3.96

Genomsnitt totalt för alla frågor: 3.96
Beräknat jämförelseindex: 0.74

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