Topic outline

  • General

    Welcome to the course!

    (last edit: 23.12. at 22.35 o'clock)

    Latest news:

    Thank you for the participation and Happy Holidays!

    COURSE GRADING COMPLETED

    ... and the information should be in SISU now.

    boundary 94 points -> 5
    boundary 88 points ->4
    etc.

    BW,

    Jyrki

    Simscape Simulation assignment 1 has been graded.

    In the grading, it has considered as an "error", if the cylinder A pressure signal has been taken "after the Counterbalance valve". (see the figure below)

    - The pressures really are different during lowering(!).

    - With the A chamber pressure ("before the Counterbalance valve") the a) load (mg) is held and b) the B chamber pressure force compensated. -> relatively small pressure

    - The pressure "after the Counterbalance valve" consists of pressure losses in pipe, proportional control valve and tanket inlet piping ,and also dynamic pressure is lost in the tank (check Bernoulli equation) -> relatively small pressure

    - During lifting the Check Valve causes a small pressure difference (cracking pressure is 0.3e5 Pa). The pressures "before" and "after" are very close to each other.  

    However,  because this "error" was also made (inadvertently) by teacher during the teaching session, the "errors" made by the students will be compensated in grading. So, at the moment, the grading is not finished. This "error" was quite useful from pedagogical perspective.

    Sorry for the inconvenience!


    Assignment 2

    was graded already on (24.11.2022), but the feedback files were not uploaded! Uploading done now (19.12.2022).

    Simscape Simulation assignment 2 (GROUPS)

    has been graded (12.12.2022)

    ....................................................................................................

    On Wednesday 23.11.2002 there was NO simulation session.

    We can use part of Tuesday's session (29.11.) to go through the Simscape Simulation assignment 2 (GROUPS) once more. The Deadline is 30.11.2022.

    Thank you for visiting our laboratory!  (Laboratory visit on Tuesday 22.11.2022)

    If you have any questions related to the demos, we are happy to answer!

    Points for you and your Group have been given:

    - 2 points, if your Research group has attendance (some members of your group visit the laboratory)

    and

    - 2 points, if you attend the laboratory visit personally

    (this means that: maximum is 2 + 2 = 4 points)

    Location of laboratory:
    K4 building, Sähkömiehentie 4
    Use the laboratory door behind the building (see the red arrow in the map below).
    Fluid Power Map of Aalto

     
    Otaniemi Campus MAP:

    Other (older) "news":
    Simscape Simulation assignment 2 (GROUPS)
    Pump benchmarking template added

    Assignment 1 has been graded

    Nice work with the Mathcad templates!

    The long and complex assignment was probably not too easy.

    Many relevant problems had to be solved during the assignment.

    You did very well!

    Deadline updated 4.11.2022 -> 16.11.2022

    (also, in the assignment mailbox, 30.10.2022)

    LINK to

    simulation sessions

    Click here to join the meeting


    Simulation assignment 1:

    Deadline has been updated 4.11.2022 -> 16.11.2022

    Undergraduate Center corridor door locked (room U344) -> if you cant' get in the class

    Instructions by the university:

    - Use your HSL card

    - Pick up an access token from lobby services

    Some new instructions for Assignment 1 have been made -> check the recording available on 13.10.2022

    - Assignment for each student: explanation of simulation assignment (LS controller) (Powerpoint file available under Simscape Simulation assignment 1 )

    - Assignment for each GROUP: Assignment 1, filling the template, workflow

    Link to online-lectures in TEAMS (below)

    Join Microsoft Teams Meeting

    Link to recordings (below)

    https://aaltofi.sharepoint.com/:f:/r/sites/MEC-E5004-FluidPowerSystems/Shared%20Documents/General/Recordings?csf=1&web=1&e=DZAgN2

    LINK to

    simulation sessions

    Click here to join the meeting

    Literature hint in the internet:
    Click library: learning center
     
    for Book

    Hydraulic control systems

    Manring, Noah, author. 2020

    Issue with recording on 11.10.2022. -> Check NEW recording instead - related to Assignment 1 (13.10.2022)

    - "Studio recording" without students

    - Sorry for the inconvenience!


    - The Assignment 1 will explained during the following weeks starting on 20.9.2022.
    - The Simscape Simulation assignment 1 started on Wednesday 5.10.2022 in U344 (Undergraduate Centre) and in TEAMS
    The simulation materials are available, some materilas (hints) still under construction.
    In our Fluid Power courses we will use …
    • Matlab
    • Simulink
    • Simscape Fluids (in this Systems course, remember to install "Fluids" package, also if you use your own computer)

      As you have Aalto's IT license, you can download Matlab and some other useful software to your personal computers, if you like from web page .... https://download.aalto.fi/index-en.html


    Check

    FFPA, Finnish Fluid Power Association        (in Finnish only)

    CETOP pages                                                (in English)

    Lecture materials (<- click for lecture slides etc., those are under Materials)

    - slide set 1A

    - slide set 1B

    - slide set 1B

    - slide set 2

    - Digital Hydraulics

    Assignments (<- click for assignment materials)

    Assignment 1 documents ready for the Groups.

    Hydraulic Formula/Equation collection added (22.9.2022)

    Mathcad and Matlab templates available.


    Link to recordings (below)

    https://aaltofi.sharepoint.com/:f:/r/sites/MEC-E5004-FluidPowerSystems/Shared%20Documents/General/Recordings?csf=1&web=1&e=DZAgN2

    Normally

    Classroom is 202 of Konetekniikka 1 (K1 building), street: Otakaari 4

    Lecture time is 16.15 - 18.00

    Check the MAP below.

    Schedule (DRAFT)

    Schedule table for course




    Otaniemi Campus MAP:

    Simulation sessions in room U344 (3rd floor of Undergraduate Centre)
    MAP (page 4 -> floor 3):

    If you have anything to ask or comment, please contact ...

    jyrki.kajaste@aalto.fi

    BW,

    Jyrki

    Course:

    You can see the schedule on the right side ->

    In our Fluid Power courses we will use …
    • Matlab
    • Simulink
    • Simscape Fluids (in this Systems course, remember to install "Fluids" package, also)

      As you have Aalto's IT license, you can download Matlab and some other useful software to your personal computers, if you like from web page .... https://download.aalto.fi/index-en.html

    • We will use also Mathcad, but you can’t download it from Aalto’s pages.
      • You can also use Mathcad in Aalto’s classrooms. There might be some potential issues with Mathcad versions. (in classroom is probably version 7)
      • You can also use Aalto’s classroom licenses remotely …. with some magic, which I can inform you later.
      • You can download free and limited version … very likely from … https://www.mathcad.com/en/try-and-buy/mathcad-express-free-download -> this is probably version 8, you can't read version 8 files with version 7 software.