Questions tagged [impact]
The impact tag has no usage guidance.
8
questions
2
votes
1answer
46 views
Vibration following an impact
This high-speed video shows a cymbal's response to impact. I'm interested in how the observed vibration relates to the modes and frequencies that an eigenvalue vibration analysis would predict. My ...
0
votes
3answers
72 views
How to calculate beam impact problem
Can anyone help with this Impact problem? It does not seem very difficult but I am having trouble putting all the parts together.
Thanks,
1
vote
2answers
34 views
How effective are screen protectors?
Screen protectors are supposed to protect your devices from nicks and scratches, as well as the stress of impacts which might otherwise lead to cracks or shattering. The fundamental principle behind ...
0
votes
2answers
43 views
Why do some metals with bcc structure show ductile-brittle transition in charpy impact test?
I was learning about the charpy impact test and came across the graph on this webiste that shows the impact energy for bcc and fcc structures as a function of temperature. I tried searching for an ...
1
vote
1answer
37 views
How to create a mechanical equivalent to dropping object onto steel floor
(I was informed on the Physics board that this is an Engineering question, therefore they closed it there, and I moved it here)
First, I have next to zero formal physics training... I opted for all ...
1
vote
0answers
16 views
Half Sine Impulse in a modal Transient Analysis
I have a MDOF FEM model in which I perform a modal transient analysis based on the modal eigenfrequencies extracted in a prior step.
I wish to excite only the first natural frequency of the system via ...
6
votes
2answers
58 views
Is a single large impact better than several small impacts for breaking ice
I'm designing a device that uses impact to remove ice from sidewalks. I have a question about how to best design the impact mechanism.
I can design it to deliver several light impacts or fewer harder ...
1
vote
1answer
44 views
Does the surface roughness play any role in shock absorbing?
Consider a mass of about $130 \pm 10 $ kg, falls from height, let say $2.5 $ m.
In order to dampen the vibration and sound, I use silencer or drop pads. I was wondering if introducing the macroscopic ...
