Differences

This shows you the differences between two versions of the page.

--- lego_motion_analysis_tutorial [2021/05/29 12:26] – johnlee
+++ lego_motion_analysis_tutorial [2024/04/22 22:44] (current) – johnlee
@@ Line 1: / Line 1: @@
 ====== Motion Analysis of Lego Pieces ======
-**Author:** [[unlv_lee|Joo Won Lee]] Email: <leej183@unlv.nevada.edu>
+**Author:** [[unlv_lee|Joo Won Lee]] Email: <leej183@mit.edu>
 \\
-**Date:** Last modified on <5/30/2021>
+**Date:** Last modified on <6/3/2021>
 \\
 **Keywords:** <Tutorial, how to, lego, Solidworks, motion analysis>
@@ Line 30: / Line 30: @@
 \\
 ^ File Name                 ^ Google Drive Link                                                                   ^ Note                                   ^
-| Isogawa Solidworks Parts  | https://drive.google.com/file/d/15YxjyU9YPXL9NbGBGqAZQyTHRre_JzFH/view?usp=sharing  | Ask author or lab member for password  |
+| Isogawa Solidworks Parts  | https://drive.google.com/file/d/1KvLF4l2abW-GGuO1T0vRRLwzHVT3o4dG/view?usp=sharing  | Ask author or lab member for password  |
 \\
 The Only lego pieces will be used for this tutorial.
 \\
 \\
-==== How to Setup ====
+===== How to Setup =====
 \\
 You need two lego bar peices connected by an axle
@@ Line 66: / Line 66: @@
 \\
 \\
-==== Constant Rotation without Gravity ====
+===== Constant Rotation without Gravity =====
 \\
 Click motion study tab on the bottom
@@ Line 99: / Line 99: @@
 \\
 \\
-==== Nonconstant Rotation without Gravity ====
+===== Nonconstant Rotation without Gravity =====
 \\
 Create a new motion study by right clicking on the bottom. (If it is the first motion study, just click the motion study tab.
@@ Line 120: / Line 120: @@
 \\
 \\
-==== How to Add Gravity in Motion Analysis ====
+===== How to Add Gravity in Motion Analysis =====
 \\
 Create a new motion study profile. (Right click motion study tab at the bottom)
@@ Line 141: / Line 141: @@
 \\
 \\
-==== Rotation with Gravity without Friction ====
+===== Rotation with Gravity without Friction =====
 \\
 Gravity without friction can cause problem.
@@ Line 147: / Line 147: @@
 The way Solidworks motion analysis calculates acceleration and momentum will cause error.
 \\
-This might be due to accelerating too fast for the computer to properly calculate some values.
+This might be because the bar is accelerating too fast for the computer to properly calculate some of the movement values.
 \\
 Due to this calculation error, the bar may accelerate enough from free fall to rotate all the way around.
@@ Line 167: / Line 167: @@
 \\
 \\
-==== Rotation with Gravity with Friction ====
+===== Rotation with Gravity with Friction =====
 \\
 Unlike acceleration without friction, once you add friction to the calculation, the normal gravity's calculation will not cause error.
 \\
-==== Result ====
 \\
-If you did everything right, the result will look like this!
+One must add friction in the assembly area before motion analysis can be done.
 \\
+Click the part where the both bar and pin surfaces meet and add friction to it.
 \\
-The name of the files and folders are important because that is how DASL wiki displays correct image/files.
+Add a friction (u value).
 \\
-If the link is in <fc red> red</fc>, then it means that the link is broken and you should see if you uploaded  the file in the right folder or the name is correct.
+{{youtube>S4-8ImeFRiI?medium}}
 \\
 \\
+{{:lego:tutorial:grav5.png?400|}}
+\\
+The graph will show a decaying oscillation.
-==== Final Words ====
+\\
+\\
+===== Result =====
+\\
+Using motion analysis tool in the Solidworks, one will be able to analyze the angle displacement of various objects.
+\\
+Motion analysis tool is a powerful tool that can be used for analyzing or simulating motion for different purposes.
+\\
+As a personal example, I used motion analysis to calculate the power consumption and torque required to purchase the right motor.
+\\
+The simulation can be a very helpful tool for any future projects.
+\\
+\\
+{{:lego:tutorial:torque_power_data3_with_gravity_.png?400|}}
+\\
+Trying to calculate the maximum torque required to rotate the bin and see how much power is needed.
+\\
+===== Final Words =====
 \\
 This tutorial went over the following tasks:
 \\
--How assemble in Solidworks
+-How to use motion analysis
 \\
--How to view in exploded view
+-How to add reference angles
 \\
--How to animate the pieces
+-How to add gravity
 \\
--How to use Studio 2.0 and make instructions
+-How to view angle displacement on a graph
 \\
--How to upload to DASL wiki
+-How to add friction
 \\
 \\
-For questions, clarifications, etc, Email: <leej183@unlv.nevada.edu>
+For questions, clarifications, etc, Email: <leej183@mit.edu>