Thanks for your perfect modeling; I have a question: I want to determine the center of gravity for the whole system. each of the parts has an individual center of gravity (COG), but I can't find out where is the total center of gravity. to be more specific, when the system starts to run, some parts are moving (have rotation or translational motions) and the COG of the whole system will be changed during a dynamic simulation. Could you help how can I define total COG for this system and determine its magnitude during the time?
@@nabeelk I couldn't find any direct calculations in ADAMS to determine total COG. Bit i solved through the following solution. If your system is composed by rigid bodies each of these bodies has a centre of mass marker and a mass property; you can use the definition for the coordinate of the centre of mass of a system of rigid bodies that stated that the coordinates of the CM are the weighted average over the masses of the coordinates of each single body. So you can create 3 measure (for x, y, and z coordinates) in the following way (here I’ve written the function for a system with 3 rigid bodies): (.MODEL_1.Mass_2*DX(.MODEL_1.PART_2.cm)+.MODEL_1.Mass_3*DX(.MODEL_1.PART_3.cm)+.MODEL_1.Mass_4*DX(.MODEL_1.PART_4.cm))/(.MODEL_1.Mass_2+.MODEL_1.Mass_3+.MODEL_1.Mass_4) This is the function for the x component and you can do the same for the other two coordinates; the variables Mass_2, Mass_3 and Mass_4 are 3 variables that I’ve created and that computes the mass of each body. In this way you have a time function that describes the position of the total CM throughout all the simulation.
@@amonberdiev8836 I couldn't find any direct calculations in ADAMS to determine the total COG of the system, But I solved it through the following solution. If your system is composed of rigid bodies each of these bodies has a centre of mass marker and a mass property; you can use the definition for the coordinate of the centre of mass of a system of rigid bodies that stated that the coordinates of the CM are the weighted average over the masses of the coordinates of each single body. So you can create 3 measure (for x, y, and z coordinates) in the following way (here I’ve written the function for a system with 3 rigid bodies): (.MODEL_1.Mass_2*DX(.MODEL_1.PART_2.cm)+.MODEL_1.Mass_3*DX(.MODEL_1.PART_3.cm)+.MODEL_1.Mass_4*DX(.MODEL_1.PART_4.cm))/(.MODEL_1.Mass_2+.MODEL_1.Mass_3+.MODEL_1.Mass_4) This is the function for the x component and you can do the same for the other two coordinates; the variables Mass_2, Mass_3 and Mass_4 are 3 variables that I’ve created and that compute the mass of each body. In this way you have a time function that describes the position of the total CM throughout all the simulation.
Hello,can you tell me please how to find work space /trajectory ? to know the limits of space and also How can I find stress analysis on 2018 version all dynamic I found thank you.
For trajectory, you can create the marker on part and during simulation or animation you select that maker and select the option of trace marker to do stress analysis you have convert rigid body into flex body for that you can go through the MSC Software you tube channel
sir, I am making a project regarding the pick and place mechanism and I have to compare the result with the source, I am using your video as a source. sir, will you share your result of the swing's angular velocity so I can compare it. I will be very thankful for this act of kindness.
I did not get what do you want to say. Almost all major industry use MSC Adams for multi body simulation. Solidworks is modelling tool not analysis tool. There is lot of difference between ADAMS capability and solidworks.
@@3DTechnocrafts Also I was surprised to find that Adams' simulation time is faster than in motion simulation in solidwork. Perhaps adams has a better solver than Solid ?? or because Solid specializes in CAD, so when it comes to CAE, it still contains CAD parameters that make CAE solving slower than Adams.
@@3DTechnocrafts Can you give your email id. Can you please continue to make more videos on Adams simulation.It would be really helpful for people like me who want to learn it but are unable to find resources for it.
I almost died of laughing when grips rotated same direction and throwed box out at 17:09
Thanks for the video and shared 3D model. It is really helpful for me as a beginner.
Where is the 3D model? The link no longer works.
can you include the shortcuts you have used
So cool ❤️
Thanks for your perfect modeling; I have a question:
I want to determine the center of gravity for the whole system. each of the parts has an individual center of gravity (COG), but I can't find out where is the total center of gravity. to be more specific, when the system starts to run, some parts are moving (have rotation or translational motions) and the COG of the whole system will be changed during a dynamic simulation.
Could you help how can I define total COG for this system and determine its magnitude during the time?
Did you manage to solve it ?
Have you found the answer for you question, if yes please share with us, thank you in advance!!!
@@nabeelk
I couldn't find any direct calculations in ADAMS to determine total COG.
Bit i solved through the following solution.
If your system is composed by rigid bodies each of these bodies has a centre of mass marker and a mass property; you can use the definition for the coordinate of the centre of mass of a system of rigid bodies that stated that the coordinates of the CM are the weighted average over the masses of the coordinates of each single body.
So you can create 3 measure (for x, y, and z coordinates) in the following way (here I’ve written the function for a system with 3 rigid bodies):
(.MODEL_1.Mass_2*DX(.MODEL_1.PART_2.cm)+.MODEL_1.Mass_3*DX(.MODEL_1.PART_3.cm)+.MODEL_1.Mass_4*DX(.MODEL_1.PART_4.cm))/(.MODEL_1.Mass_2+.MODEL_1.Mass_3+.MODEL_1.Mass_4)
This is the function for the x component and you can do the same for the other two coordinates; the variables Mass_2, Mass_3 and Mass_4 are 3 variables that I’ve created and that computes the mass of each body.
In this way you have a time function that describes the position of the total CM throughout all the simulation.
@@amonberdiev8836
I couldn't find any direct calculations in ADAMS to determine the total COG of the system, But I solved it through the following solution.
If your system is composed of rigid bodies each of these bodies has a centre of mass marker and a mass property; you can use the definition for the coordinate of the centre of mass of a system of rigid bodies that stated that the coordinates of the CM are the weighted average over the masses of the coordinates of each single body.
So you can create 3 measure (for x, y, and z coordinates) in the following way (here I’ve written the function for a system with 3 rigid bodies):
(.MODEL_1.Mass_2*DX(.MODEL_1.PART_2.cm)+.MODEL_1.Mass_3*DX(.MODEL_1.PART_3.cm)+.MODEL_1.Mass_4*DX(.MODEL_1.PART_4.cm))/(.MODEL_1.Mass_2+.MODEL_1.Mass_3+.MODEL_1.Mass_4)
This is the function for the x component and you can do the same for the other two coordinates; the variables Mass_2, Mass_3 and Mass_4 are 3 variables that I’ve created and that compute the mass of each body.
In this way you have a time function that describes the position of the total CM throughout all the simulation.
@@hosseinhjr7638 now I even forgot, what the problem was.
HI, can you share new google drive link, previous link is not working
You can to do co-simulation with matlab/simulink?
how did you get the assembly perfectly imported on the grid origin? Please help ASAP
You have to model in cad accordingly
Or you can move to origin after import into adams
the drive link is not working. Please do share the link
I need the CAD of this robot to import MSc adams
sir, will you tell what is a main result or output we consider? like speed of arm etc.
Main output would forces and torque at joint locations also acceleration velocity etc.
@@3DTechnocrafts thank you sir
Hello,can you tell me please how to find work space /trajectory ? to know the limits of space and also How can I find stress analysis on 2018 version all dynamic I found thank you.
For trajectory, you can create the marker on part and during simulation or animation you select that maker and select the option of trace marker
to do stress analysis you have convert rigid body into flex body
for that you can go through the MSC Software you tube channel
sir, I am making a project regarding the pick and place mechanism and I have to compare the result with the source, I am using your video as a source. sir, will you share your result of the swing's angular velocity so I can compare it. I will be very thankful for this act of kindness.
Ok
@@3DTechnocrafts sir please share results
sir this is my email, abuzarakram151@gmail.com
@@keisapient ok I will mail you
@@3DTechnocrafts sir have you sent?
sir tell me how to give step function for scara robot in adams.
I have video on step function you can check that
You can check my video on step function
Sir I have searched ,in your playlist.i didn’t get.can u send me link
How can I download this file for adams?
Can i get this adams files? I want to learn adams,thanks
Can anyone tell me how to constrain a revolute joint in a particular range of angles?
Step function has been used for that. You can watch tutorial on step function
step function tutorial - ua-cam.com/video/ZA_DnkdqzrU/v-deo.html
Thanks
why do you simulation in motion simulation of solidworks???
I did not get what do you want to say. Almost all major industry use MSC Adams for multi body simulation. Solidworks is modelling tool not analysis tool. There is lot of difference between ADAMS capability and solidworks.
@@3DTechnocrafts Thank you, measuring is what I want to ask
@@3DTechnocrafts Also I was surprised to find that Adams' simulation time is faster than in motion simulation in solidwork. Perhaps adams has a better solver than Solid ?? or because Solid specializes in CAD, so when it comes to CAE, it still contains CAD parameters that make CAE solving slower than Adams.
Can you please make simulation of trebuchet on adams
Can you share cad file
@@3DTechnocrafts Can you give your email id.
Can you please continue to make more videos on Adams simulation.It would be really helpful for people like me who want to learn it but are unable to find resources for it.
kakaderam@gmail.com
@@3DTechnocrafts ua-cam.com/video/Lf0Yg3JYd2Y/v-deo.html Can you make this mechanism on adams
Hi! Can you send me the CAD files, please?
Hi! Can you send me the CAD files, pleas?