- Видео 157
- Просмотров 213 341
Ironpine
США
Добавлен 28 фев 2013
Caleb Williams holds a BS in Mechanical Engineering from the University of West Florida. His interests include hands-on engineering, fluid dynamics, structural mechanics, and system dynamics.
Caleb has experience in the research and development fields and has used MATLAB for over four years in a variety of applications. He is also familiar with SolidWorks, ANSYS Fluent, and multiple other engineering software packages.
Caleb has experience in the research and development fields and has used MATLAB for over four years in a variety of applications. He is also familiar with SolidWorks, ANSYS Fluent, and multiple other engineering software packages.
Freediving Artificial Reef off Okaloosa Island - June 2022
Spearfishing on an artificial reef of Okaloosa Island, FL.
Music: This is My Father's World (Terra Beata/Patris)
Recording from www.smallchurchmusic.com/Song_Display-New.php?SID=128.
Music: This is My Father's World (Terra Beata/Patris)
Recording from www.smallchurchmusic.com/Song_Display-New.php?SID=128.
Просмотров: 81
Видео
Freediving Morrison Springs - May 2021
Просмотров 1923 года назад
Freediving the caves at Morrison Springs with my buddy Sean McGee.
Freediving Vortex Springs - May 2021
Просмотров 3653 года назад
Freediving Vortex Springs in Ponce de Leon, FL. Videography by Caleb Williams and Sean McGee. Videography is a work in progress - I need to learn to keep my finger out of the camera lens! Music: Water Wood & Stone by Audionautix | audionautix.com/ Music promoted by www.chosic.com/ Creative Commons Attribution 4.0 International (CC BY 4.0) creativecommons.org/licenses/by/4.0/
Cave Diving at Ponce de Leon Springs
Просмотров 1,9 тыс.3 года назад
Freediving Ponce de Leon Springs. Includes a dive to the back of the cave. The opening at the back of the cave is too small to swim through, so the cave is essentially a dead end.
Point of View - Parkour
Просмотров 983 года назад
Trying out some parkour with my new action camera. A little shaky, but it's cool to get my POV. Music: "The End is Here" by Stephen Berry
Autonomous Field Painter - University of West Florida Capstone Design
Просмотров 6914 года назад
Marking lines for sports fields is a mundane, time consuming task often left to volunteers or over-extended, tightly-budgeted parks & recreation departments. This can result in inconsistent and inaccurate field markings or inefficient use of financial and human resources. An autonomous field painting robot would remove these inconsistencies and make more efficient use of all available resources...
Arduino Control of Actuonix Linear Actuator
Просмотров 15 тыс.4 года назад
In this video I show how to control an Actuonix PQ12 linear actuator using an Arduino Mega 2560. The same basic procedure should hold for a variety of linear actuators and Arduino boards. PQ12-R Linear Actuator: www.actuonix.com/Actuonix-PQ12-R-micro-linear-servos-for-RC-p/pq12-r.htm Arduino Code: www.mediafire.com/file/rk2b295m2njvqpj/Actuator.ino
Spring Mass System Modal Response in MATLAB
Просмотров 6 тыс.4 года назад
In this video, I discuss a MATLAB script I developed to determine the natural frequencies and mode shapes of an n-mass spring-mass system. The script also numerically solves the equations of motion and plots the position, velocity, and acceleration of each mass in the selected mode of vibration. The theory and background of solving for the modal response of a spring-mass system was covered in a...
Simulating the Modal Response of a Spring-Mass System
Просмотров 1,9 тыс.4 года назад
In this video, we explore the modal response of a n-body spring-mass system. We discuss mode shapes, their meaning, and how to solve for the mode shapes from a system's equations of motion. If you'd like to solve for the mode shapes and plot the modal response in MATLAB, check out this video: ruclips.net/video/MwsWLPtiKis/видео.html
Simscape Multibody Spring-Mass System | MATLAB Tutorial
Просмотров 37 тыс.4 года назад
In this video we look at how to model a multibody spring-mass-damper system in MATLAB Simscape, a derivative of the Simulink application. A simple model involving two masses is created and simulated to a unit step input. The results are analyzed and the Simscape settings are adjusted to show the application's functionality.
Modal Analysis with Simscale | Connecting Rod
Просмотров 8145 лет назад
In this video we take a look at modal analyses and how to conduct them in Simscale using a connecting rod as an example. Feel free to ask me any questions in the comments section below! Simscale: www.simscale.com/ Modal Analysis Theory: en.wikipedia.org/wiki/Modal_analysis_using_FEM
Equations of Motion and MATLAB/Python Simulation of Multibody Spring-Mass-Damper System
Просмотров 33 тыс.5 лет назад
In this video we take a look at a two-cart spring-mass-damper system. The equations of motion for the 2 DOF system are derived using simple Newtonian mechanics and solved numerically in both Python and MATLAB. The results are analyzed and a MATLAB animation is presented to visualize the results. Equations of Motion Derivation: www.mediafire.com/file/1b6mle4w1zcwvk7/Cart_System_Dynamics.pdf/file...
How to Wrap/Roll Loose Coins
Просмотров 80 тыс.5 лет назад
Today we're going to take a look at how to roll loose change. Many banks will only accept coins when rolled up like this. This method works for pennies, nickels, dimes, quarters, and even other denominations. Thumbnail images from Google
MATLAB Animation & Kinematic Analysis of a Pendulum
Просмотров 18 тыс.5 лет назад
In this video we take a look at how the equations of motion for a simple pendulum are derived and how to solve the differential equation of motion in MATLAB. The angular position, velocity, and acceleration of the pendulum mass are plotted as a function of time along with the tension in the pendulum rod. An animation showcasing the pendulum motion is also presented. Pendulum Equations of Motion...
One Year of Parkour - Caleb Williams
Просмотров 1405 лет назад
It's been a little over a year since I first started parkour. Here's a look back at some of my clips from the past year (in mostly chronological order). Instagram: calebwilliams507 Tonic and Energy by Elexive is licensed under a Creative Commons Attribution License Source: www.youtube.com/watch?v=U6fBP...
Stak N' Lok Toy - UWF Modern Product Design Spring 2018
Просмотров 2786 лет назад
Stak N' Lok Toy - UWF Modern Product Design Spring 2018
UHC Highlights 14: Sharp V Full Prot II in UHC!?
Просмотров 736 лет назад
UHC Highlights 14: Sharp V Full Prot II in UHC!?
UHC Highlights 12: Final Fight of the Ages
Просмотров 396 лет назад
UHC Highlights 12: Final Fight of the Ages
UHC Highlights 10: Power IV in a UHC!?
Просмотров 246 лет назад
UHC Highlights 10: Power IV in a UHC!?
Ironpine's Infinite Edit: Iron Infinite 16x - 1.7/1.8
Просмотров 1496 лет назад
Ironpine's Infinite Edit: Iron Infinite 16x - 1.7/1.8
UHC Highlights 08: Killing Spree!! - IronUHC II
Просмотров 567 лет назад
UHC Highlights 08: Killing Spree!! - IronUHC II
UHC Quest II 05: Cover me With Diamonds
Просмотров 147 лет назад
UHC Quest II 05: Cover me With Diamonds
Ironpine's Faithful Edit: Iron-PvP 32x - 1.8/1.9/1.10/1.11/1.12
Просмотров 8 тыс.7 лет назад
Ironpine's Faithful Edit: Iron-PvP 32x - 1.8/1.9/1.10/1.11/1.12
Useed to swim here as a kid and was always inspired by the cave system...is there currently line? Can't wait to dive this!
Beautiful work, continue, more examples like these with simscape
Sick, went recently but there was way too many people there.
So simple to understand! Brilliant work!!
How do you really know there's 10 Dollars in there ?????
is n20 motor used inside this actuator?
How. Does a penny work on your foot
Can the program be changed to control the position of the actuator or is that one strictly in/out?
I believe the actuator is strictly in/out. A 1ms pulse extends the actuator, and a 2ms pulse retracts it.
Thanks!!!!!
If I want to add an electrical system to this system, how can I do it?
had me nervous there on the turn around in the cave. Cool video.
Hi when i turn the position of the sensor to a signal outut and simulate it in paramter estimation it just simulates to zero
Thank you. It was very helpful. Can you also make a video regarding the electrical circuit with L, C & R. Thanks again!!
Trying to run the Python program - I get errors on the # import lines Traceback (most recent call last): File "C:\tmp\Python\doublespringdashpot.py", line 15, in <module> import numpy as np ModuleNotFoundError: No module named 'numpy' >>> ================= RESTART: C:\tmp\Python\doublespringdashpot.py ================ Traceback (most recent call last): File "C:\tmp\Python\doublespringdashpot.py", line 16, in <module> import matplotlib.pyplot as plt ModuleNotFoundError: No module named 'matplotlib' >>> ================= RESTART: C:\tmp\Python\doublespringdashpot.py ================ Traceback (most recent call last): File "C:\tmp\Python\doublespringdashpot.py", line 18, in <module> t0=time.clock() # start timer for finding simulation time AttributeError: module 'time' has no attribute 'clock' Sorry I am new to python. Not sure if I need to maybe add certain modules to the basic Python path that I am running? I am working on a windows machine. Thanks >>>
You are certainly missing those modules. I’ve never known of a user having issues importing modules into Python. Have you tried Googling this issue specifically?
@@ironpine5815 Thanks - I guess these modules don't come preinstalled in windows. Will try on a linux system that I have. Will install python there and check..
@@analysispros I would recommend installing a Python distribution such as Anaconda.
@@ironpine5815 Hi Caleb - ok - installed Anaconda on the Linux machine. Running the code within Spyder I get an error on the clock/time - File "/home/talia/anaconda3/lib/python3.9/site-packages/spyder_kernels/py3compat.py", line 356, in compat_exec exec(code, globals, locals) File "/home/talia/anaconda3/Progs/doublespringdashpot.py", line 18, in <module> t0=time.clock() # start timer for finding simulation time AttributeError: module 'time' has no attribute 'clock' Any ideas what could be the issue?
@@analysispros it looks like time.clock() has been removed from Python. Check this out: stackoverflow.com/questions/85451/pythons-time-clock-vs-time-time-accuracy.
Thanks so much!
Hi, I attempted to follow along using an Arduino Nano, and it started smoking when I powered up. Could you give me a little guidance on which pins I should try on the Nano? I think I used the wrong pins. Thanks much
Yikes! You can use the same type of signal pin, but you’ll definitely want to power the actuator using an external source. The smoke was likely due to the actuator pulling more current than the Arduino could provide.
Hi, currently working on a similar problem of my own and found this video very helpful. However in my problem i don't think I can assume f(t) to be zero as it is a unit step input. Would you know how to change the code for this? struggling to find anything else on this topic online. Thanks!
First, you will have to add f(t) to your equations of motion. That should be straightforward if you're comfortable with drawing the free-body-diagrams. I don't think adding f(t) will change the application of Euler's Method in the numerical solving of the EOM's. You just need to be able to create a piecewise representation of your unit step input! Let me know if that works!
How to attach the PID controller in multibody model in spring mass damper systems
Thanks a lot for the explanation ,if I have a bar how can give it an angle at matlab
Hello sir, you made a great explanation. thank you.
I remember it taking everything I had to get to that tree free diving and wondering if I was going to make it to the top. Water was so clear you couldn’t tell how close you were to the surface.
If you want to increase your breath hold, I would recommend using an app like FreediveApnea. It will run you through some helpful breath holding exercises.
Also, I have a more recent (and better quality) video of me freediving at Morrison Springs: ruclips.net/video/KbdEiSj7Axk/видео.html.
Thanks for the info. It was back in the mid 90s when I was there as a teen. My dad and uncle and their friends all cave dived while we swim. We went to a few other springs. Vortex and cypress springs. They all were fun and cold.
I remember it taking everything I had to get to that tree free diving and wondering if I was going to make it to the top. Water was so clear you couldn’t tell how close you were to the surface
I want output as Equation of motions for MDOF, How to do in matlab?
Hi! Thanks for this useful content. Is it possible for you to do the rotational spring mass system on simscape with 2 or 3 masses?
Hello, it's a great work indeed. Could you please do a similar work for torsional vibration and the natural frequencies of a shaft system?
thanx a lot man
can you please make a video for p type linear actuator
I clicked the links and got hit with a virus on my computer.
Thank you for your technical explained Newton's second law in very easy understand.
Bantu bet nih buat algo Pa Mekro
Very informative ,Thank you
Thanks ! Do you have the simulink of this system ?
Hello, i am currently building a robotic hand and very inexperienced with this stuff is it possible if i could reach out to you over email to ask some questions?
You can still dive here
Yes - you can still dive into the cave, but the swimthrough is too tight - sand has blocked the exit.
what could i do in order to have in the x axis the time in seconds and not the number of iterations? My goal is to reach a graph with accel. on y axis and time on x axis
It's pretty simple to do. The simulation time step is set on line 12 of the MATLAB code (tStep). Create an array that increments by tStep that is the same length as your position, velocity, and acceleration arrays. Then you can plot using this "time" array.
@@ironpine5815 can you write it for me? I barely can use matlab, I'm a lot ignorant in that and I'm on a nerve crisis because I'm working on something similar since this morning because I'm on a hurry. Sorry for asking but I really need help, if you can't write it down for me, at least please tell me how to do it step by step. Thanks and sorry again
@@StellarHamster I think I explained it to you pretty step-by-step. I won't write the code for you though - if this is one of your assignments/projects/etc, then you need to be the one doing the work.
@@ironpine5815 done this morning, thanks. Sorry for the panic, I learned something
@@StellarHamster I'm glad you got it figured out!
hlo informative tutorial sir but can you plz explain me that how l get acceleration from this model. kindly reply to me then it will be very helpful for me
is it spring mass damper with 2 dof model?
This video helped me get change at the bank so I could get a pizza. You don't understand how grateful I am.
i hope your $ is up by now
@@JaysDirtySprite LOL
how can I save this video in file manager, can you please tell me about that
I'm trying to follow your code to have the actuator extend, hold for ~3 mins, retract, and end there. How would I edit your code to do this? I tried just changing the last delay to exit(0), but since doing that now it won't retract.
I would use a while() statement - basically put your code in an endless while loop.
good stuff man thanks
Hello, thanks for the great video! I am currently using a larger actuonix, but am having an issue where it only extends, does not retract. Using writeMicroseconds should have the actuator go to fully CCW (retracted) at 1000 and fully CW (extended) at 2000 correct? Any advice?
Hmm . . . that is strange. I would check the documentation for your model and see if/how it differs from the PQ12. It may be that a different pulse time is required to extend/retract.
Holy shit. Simple, useful and to the point. Finally someone understands what value is to a Student. Great job
Thank you! I actually made this video while a student - I had a homework assignment using Simscape and couldn't find any useful RUclips videos on the package, so I made my own!
id love to join you on one of your freedives!
Ryan McNeil! It's been a long time man!
how can i make system fixed both end and have 3 spring?
You will have to re-derive the equations of motion and then apply Euler's method to this new set of equations. The general process will be the same as I have outlined in the video.
You a g man
Where do I get the “rolls of paper” from? I’m assuming from the bank themselves
You might be able to get them from the bank. You can also buy them on Amazon - just search "coin wrappers."
@@ironpine5815 definetly get them from the bank, I just went out and got some. It's a whole lot more appealing to get them for free, especially because you're using them to save money. The Chase banks I've been to generally have free coin rolls for penny through quarters.
Thank you!!
Thank u fr ur nice explanation sir can u tell how to apply a control force while trying to control structure responses by active control
I hate to say it, but that is beyond my realm of knowledge - I don't know much about controls.
How to add rungekutta fourth-order instead of euler ?