Topic outline

  • Assignments

    • Group choice icon
      Research group selection Group choice
      Not available unless any of:
      • You are a(n) Teacher
      • You are a(n) Student

      Research group selection

    • Folder icon
      Calculation exercises 2021 Folder
      Not available unless any of:
      • You are a(n) Student
      • You are a(n) Teacher
    • Quiz icon
      Quiz 1
      Not available unless any of:
      • You are a(n) Teacher
      • You are a(n) Student

      Quiz 1

      Deadline 5.3.2021

      - Quiz 1 consists of questions related to slide sets 1 - 4

      - Multiple choice questions (1 correct answer out of 4 options)

      - 20 questions, 45 minutes to go

      - 6 attempts possible

           - 2 attempts -> after 2 attempts

        - student must wait 1 day before attempting the Quiz a third time and any subsequent times.

      - The best of the attempts determines the final Grade

    • Assignment icon
      Simulation assignment
      Not available unless any of:
      • You are a(n) Student
      • You are a(n) Teacher

      Simulation assignment - Simscape

      4 Exercises for this assignment

      1. Monday 8.2.2021 at 12.15

      2. Thursday 11.2.2021 at 14.15 o'clock

      3. Monday 15.2.2021 at 12.15 o'clock

      4.a Monday 15.2.2021 at 15.00 o'clock
      4.5 The 1st week of March -> 4.3.2021 at 12.15 o'clock (use TEAMS link for Thursday lectures)

      Documents available

      - Instructions  (Word)

      - Report file (Powerpoint)

      - Excel for calculating PID parameters

      Students' outputs

      - Report file, filled (Powerpoint)

      - Simulation model (final, closed loop controlled system)

      Deadline 5.3.2021

      MATLAB

      Assignments - software

      We will use also

      - Matlab - Simulink - Simscape Fluids

      You can

      - download (Matlab) OR

      - use Aalto's workstations remotely

      Remote usage of Aalto's workstations

      Check the page and possibilities, if you find it interesting:

      mfavdi.aalto.fi

      More info:

      https://www.aalto.fi/fi/palvelut/it-palvelut-opiskelijoille  (FI) ->Etätyö - VPN ja VDI

      https://www.aalto.fi/en/it-for-students (ENG) -> Remote Work

      Downloading and installing software

      - Matlab + Simulink with Simscape (include Simscape Fluids) toolbox

        https://download.aalto.fi/index-en.html


    • Assignment icon
      Controlled Calculation Exercise 1 Assignment
      Not available unless any of:
      • You are a(n) Teacher
      • You are a(n) Student
    • Assignment icon
      Research Assignment 2
      Not available unless any of:
      • You are a(n) Teacher
      • You are a(n) Student
      Research Assignment 2 NOW available!

      - Powerpoint available 
      - Template for assignment 2.1 available
      - Template for assignment 2.2 available
      - Template for assignments 2.3 and 2.4 available
      - Template for assignment 2.5 available

      Deadline 19.3.2021

    • Scheduler icon
      Virtual laboratory demonstration for GROUPS in TEAMS Scheduler
      Not available unless any of:
      • You are a(n) Teacher
      • You are a(n) Student
    • Quiz icon
      Quiz 2
      Not available unless any of:
      • You are a(n) Teacher
      • You are a(n) Student

      Quiz 2

      Deadline 19.3.2021

      - Quiz 2 consists of questions related to

         1. Slide set 5

         2. Pumps and motors additional material slide set

      - Multiple choice questions (1 correct answer out of 4 options)

      - 20 questions, 45 minutes to

      - 6 attempts possible

           - 2 attempts -> after 2 attempts

        - student must wait 1 day before attempting the Quiz a third time and any subsequent times.

      - The best of the attempts determines the final Grade


    • Quiz icon
      Quiz 3
      Not available unless any of:
      • You are a(n) Teacher
      • You are a(n) Student

      Quiz 3

      Deadline 19.3.2021

      - Quiz 3 consists of questions related to

      1. Slide set 6 (valves)

         2. Valves - additional material

         3. Lecture 8 slides

         3.1 FLUIDS

         3.2 FILTERS - HEAT EXCHANGERS - RESERVOIRS

      - 20 questions, 45 minutes to go

      - 6 attempts possible

           - 2 attempts -> after 2 attempts

        - student must wait 1 day before attempting the Quiz a third time and any subsequent times.

      - The best of the attempts determines the final Grade

      - Multiple choice questions (1 correct answer out of 4 options


    • Quiz icon
      Virtual laboratory demonstration Quiz One
      Not available unless any of:
      • You are a(n) Teacher
      • You are a(n) Student

      Virtual laboratory demonstration Quiz One

      Quiz One consists of questions related to Virtual laboratory demonstration

      This should be completed before your Group attends the Virtual laboratory demonstration meeting! We will check the status of your Group before starting the meeting.

      - Only 1 attempt allowed.

      - Your Group can use 3 hours for the 13 multiple choice questions.

      - maximum 20 points


    • Assignment icon
      Research Assignment 3
      Not available unless any of:
      • You are a(n) Teacher
      • You are a(n) Student

      Deadline changed -> Friday 26.3.2021

      Simscape assignment

      - Powerpoint template available
      - Instructions (Word)
      - Mathcad template for analytical calulations (check assignments 2.3 and 2.4)

      Group output:

      - Powerpoint with results

      - Phase 7 simulation model

      - Mathcad file - analytical solution

      - Simscape pump efficiencies (DRAFT file for estimating pump efficiencies) -> not needed as an OUTPUT

      New hints (Mathcad template 22.3.2021):

      Some remarks:

      • How small velocity can you use during lifting ?
      • Use the Input Command model in Simulink ->
        • The tolerances for lifting are so “tight” that … probably
          • 1 m/s is OK for sure
          • 0.5 m/s should also be OK
          • Slower than that? Check the Command model in Simulink
      • Is small cylinder should OK? -> are the pressure losses in the proportional controle valve smaller if you make the cylinder areas small?
      • During the controlled valve opening (P control) the valve’s opening is probably not "small" -> most of the lifting the opening should be 10 V?
        • This will affect the required pump pressure -> makes it smaller
      • After that selection the pump pressure is fixed for lowering also! -> PRV set pressure
      • During lowering the target velocity can also be quite small (downwards), the valve during lowering opening is probably not full -10 V, for example -> the P controller will select a smaller opening depending on your target velocity for lowering
        • check pP calculation, the calculated pump pressure should be close to PRV set pressure
        • -> the calculated pP should be close to fixed pPCP
        • the opening during lowering should be closer to -1 V than - 10 V, I think, depends of course on PRV set pressure
        • after that check also the pB pressure -> should be over 0
        • if you (or P controller) set the valve "very open",
        • problem 1: the pump pressures do not match -> he calculated pP is not close to fixed pPCP
        • problem 2: the pressure in cylinder chamber B would be too low -> cavitation
        • in the actual system the P controller will select proper control voltage  
        • in Mathcad calculation you must chooce the control voltage, which gives you the correct pump pressure


    • Assignment icon
      Controlled Calculation Exercise 2 Assignment
      Not available unless any of:
      • You are a(n) Teacher
      • You are a(n) Student
◄ Previous section
Materials