Tutorial 02: Crankshaft Modeling | Simscape Multibody | Matlab | MSD | LUT University | Finland

[@RESC_Eng]

Thank you so much Dr.Suraj

[@DrSurajJaiswal]

Thank you buddy 🙏

[@maximusm6250]

Maybe you can show in another tutorial how to visualize also the forces which acts in this system (e.g. side force to the cylinder from the piston with friction) ? That would be really great, because in praxis these are very important measurements.

[@syedmurtazajaffar8833]

Thank you tons! Best regards. God bless you.

[@DrSurajJaiswal]

Thank you for the best wishes Syed and hope you make the most out of my videos. Do check the video regarding your query here: kzbin.info/www/bejne/jX_VnKushqeEfbc :)

[@Mustafa_Mechtronics]

I hope to make a video about robot arm and calculate torque of motors and control the motion and make path planning

[@DrSurajJaiswal]

I wish you luck with that :)

[@akashparmar1919]

Hi Mostafa. My current project is exactly same as yours. I found this tutorial and it was pretty helpful. But still I am stuck at a point. If you have done any progress, can you help me?

[@akashparmar1919]

Thank you very much. It is greatly helpful.

[@DrSurajJaiswal]

It is a pleasure to know that it was helpful for you. Thank you for the feedback Akash :) Do recommend it to your friends :)

[@ateflaiche4436]

I Hope you will make lumped parameter methode and finite element analysis of a beam in the future videos .

[@DrSurajJaiswal]

Well, I guess you are talking about modeling flexible bodies. I do not explicitly use those techniques as my research is focused on rigid bodies mainly. However, I have covered modeling a flexible body in my video here: kzbin.info/www/bejne/aJfOaYmFo86kZtk Do check it out.

[@M1stG2A]

Бля братан от души я все с проектом разобраться не мог внатуре индусы сила красава брат правда не понял ничего но все равно от души братуха счастья там тебе денег побольше вот побольше бы таких индусов как ты все давай на созвоне я спать пошел

[@durgeshverma8394]

Sir which mates i should apply in the solidworks so that it gets perfectly imported into the matlab. I made a sliding(prismatic) joint model in the solidworks and I want to simulate it using simulink/matlab.

[@nastarandorooozeh8376]

Hello Can you help me please??? I can't find joint sensor & joint actuator in multibody (mathlab 2021a). I need to know where are that blocks!? I open joints part but i can't find these .😔

[@MEBGUDIMALLAMSUSHMANTHSAI]

Great in detail explanation sir. Covered DC and Marvel in T-shirts in first 3 tutorials.

[@DrSurajJaiswal]

Thank you for the comment. If you haven't done yet then please subscribe to the channel to show your support. Well you are right that in three videos I have covered some of the DC comic characters on my t-shirt :D

[@TheKingSpeaks]

Greetings Sir and Thank you very much for this video. pls I wish to know, I have some difficulties when following the Dynamics Procedure: it seems my model doesn't assimilate the Torque input. when simulating, my Cranks behaves like a pendulum...

[@TheKingSpeaks]

@DrSurajJaiswal

[@syedmurtazajaffar8833]

Dear Suraj, Can we get the slides too as these are very useful resource in guiding us to build the system. Thank you very much. Best regards.

[@DrSurajJaiswal]

Hi, Thank you for the kind words. Unfortunately, The texts cannot be made available for KZbin audience because of restrictions from our university. You can follow the video again and again and all the materials are already there.

[@aneeshjain905]

Hi Suraj, I have been watching your tutorials on simscape and they are too good. You could be a good teacher in the future. I have a question from your tutorial. So, I am rephrasing what I understand from what you said. For the first rigid transform for pair 1 I understand is since we have modeled the piston in such a way that it's z axis faces up x axis faces out of the screen and the y axis in the right direction and the revolute joint revolves around its z axis you have transformed the z axis of the revolute joint(base) to the x axis since the z axis of the piston pin should be aligned along the x axis of the piston to allow its rotation. But I do not understand about the pair 2. Could you reply to my comment with an explanation about pair 2 if you find it convenient answering when you are available? Thanks in advance

[@DrSurajJaiswal]

Hi Aneesh, Thank you for your kind words and appreciation. I will surely try to be even a better teacher every-time. :) Well you have understood it partly correct about the rigid transforms. Please note that here we transformed the axes of the piston to match it with the other system which is following the global coordinate system. For more clarity on this topic, I have made another video, please have a look: kzbin.info/www/bejne/jX_VnKushqeEfbc

[@aneeshjain905]

Hi Suraj, really appreciate you taking time from your tight schedule to answer my comment. I did watch the other video on rigid transforms presented by you and it clarified all my questions regarding the topic. You really teach very well. I am now moving forward to watch the other videos presented by you. Keep spreading your knowledge.

[@DrSurajJaiswal]

@@aneeshjain905 It is really great that all your questions are clarified now. Thank you again for your kind words, I appreciate that. Yes, do watch the other videos and share it with your friends or whoever can be benefited from these videos. Please do support the channel with likes and subscriptions. :)

[@ranitroychowdhury7084]

Sir, can u pls teach us how to make a turbine using simscape and collecting the output as electric power from it?

[@DrSurajJaiswal]

Hi Ranit, that sounds like a very good idea. I do not promise, but I will consider your suggestion in my future videos. :)

[@nucspartan321]

How did adding the bearing reduce the constraints? You went from a revolute having only rotation in the Z to a bearing which could rotate in Z and allow movement in the X?

[@DrSurajJaiswal]

That is a very good question Jairo. Please note that a revolute joint introduces 5 constraints in 3D. However, when you replace the revolute joint with a bearing joint, it helps to reduce the constraints. Basically, the bearing joint in this case can rotate only about z axis, that is, the other revolute joints are restricting its movement in two rotational directions. So offering 2 constraint equations only. It can move in the translational axis (all of them). Moreover, the mechanism does not allow the translational movement in the z direction, thus no movement there. I hope this justification helps you.

[@ateflaiche4436]

If i want designing in the body block the Real shape of the Real shape of the cranck and the other elements , what should i do? I export a CAD model ?!?! Thx in advance

[@DrSurajJaiswal]

Hi Atef, Thank you for your question. Well I believe 'smimport' option would help you. You can import your CAD model in your simscape model. You can follow this link and see if this can help you: se.mathworks.com/help/physmod/sm/cad-import.html

[@izharmurti6549]

Why my simulink is error when im connecting the prismatic joint to world frame? Plis can anyone help me

[@kaganorgun3063]

I tried to add my drawing from solidworks after then ı always take error like *** Model not assembled: position violation *** Resolve this issue in order to simulate the model. what should ı do can you help, please

[@DrSurajJaiswal]

Hi, I think maybe you can watch this video first from 40:00 onward: kzbin.info/www/bejne/qYPKkmigdrCSqbc and that might help you. If not, then let me know and share your problem in more detail then I can help you.

[@kirtankumarsahu8599]

Thank you sir for sharing your great knowledge with us. It is very helpful for understanding other problems with these tutorials. but sir I am not getting why did you not transformed the local coordinates of the crank and connecting rod, because its lengths are on the x-axis and after simulation when we see from the front view for y up (XY front) the length of both are on Y-axis of the global coordinate. please help me with this.

[@bindi9974]

Thank you sir for explaining crankshaft modeling in detail , it is greatly helpful. i have a doubt regarding modeling a 4 crankshaft model i.e. reciprocating masses experiment , i am unable to connect all 4 crank shaft together as you have shown in this video in starting 0:13 bottom right corner, can you help me in this regard, thanks again.

[@TECHNICALCLASSES_TC]

can you share your LinkedIn profile

[@DrSurajJaiswal]

here you go: www.linkedin.com/in/suraj-jaiswal-7a230753/

[@MuhammadAwais-jh2dy]

How can we find velocity of linkage

[@lucafilippone]

Hi and congratulations, is there a way to display the force vectors, velocity vectors of the axes origin or other special points?

[@syedmurtazajaffar8833]

Your lectures are great BUT PLEASE EXPLAIN the rotations of the base and the follower more clearly. Things are still blurred...Just a thought for improvement in your excellent presentation...

[@DrSurajJaiswal]

That is a great piece of suggestion. I do feel the same and very soon, in a week or two, I am planning to make video regarding rigid transform to clarify this issue. :)

[@DrSurajJaiswal]

Hello, Syed, please find the video related to your question here: kzbin.info/www/bejne/jX_VnKushqeEfbc

[@syedmurtazajaffar8833]

The BASE and the FOLLOWER line up of the Coordinate Systems is not at all clear in the presentation. Can you please put the two together in 3D and that would CLARIFY their orientations in the current setup? Please make the connecting rod, Joint 3 and the piston in one figure, showing the Coordinate systems with proper labels, so that the orientations are absolutely clear. I will appreciate this from your side as this is THE MOST IMPORTANT POINT in this setup. Sorry for this disturbance. Thanks a lot.

[@DrSurajJaiswal]

Hi Syed, I just replied to your earlier comment that yes i am planning to make a video about rigid transform that could help you to clarify this issue of coordinate orientations. :)

[@АлександрВасильев-ы1й2х]

Спасибо :)

[@DrSurajJaiswal]

you are welcome

[@nagarajumutyala5688]

Bro looking for more vedios

[@DrSurajJaiswal]

Hi Bro, I have posted a couple of videos on my channel, feel free to check them out. I will keep posting more videos... :)

[@nagarajumutyala5688]

@@DrSurajJaiswal yeah bro nice vedios they really help me out but I found only four vedios keep posting on bro ✌️

[@nagarajumutyala5688]

@@DrSurajJaiswal may I know ur background bro I just mailed you bro 😊

[@DrSurajJaiswal]

@@nagarajumutyala5688 I am glad to hear that it is helpful for you. Do share it with your friends or anyone who can have some benefit from it. :)

[@DrSurajJaiswal]

@@nagarajumutyala5688 My background is Multibody System Dynamics, particularly, hydraulically actuated mechanisms and state estimations. I did not receive any email from you. :)

[@zeinooriab]

Can i get code of this simulation too?

[@DrSurajJaiswal]

Hi Zeinab, unfortunately I cannot handover the code to you because of university's policy. However, the video does cover all the detailed steps, so you can make the code yourself. :)