Questions tagged [mechanical-engineering]
Questions within the problem domain of mechanical engineering. Mechanical Engineering can be a broad field; consider choosing more specific tags if they apply.
4,401
questions
1
vote
0
answers
11
views
How to estimate the rounding toque of an allen key socket?
I can't find an example calculation for the maximum torque of an allen key socket (the female bit on the screw head that the allen key goes into) anywhere online, or in textbooks, can someone point me ...
- 11
-1
votes
0
answers
27
views
Delayed ink question
Imagine an ink that you write something on paper, and is at least partially invisible at first, and over hours or days has a chemical reaction with the air and becomes visible.
Does this type of ...
- 1
0
votes
0
answers
20
views
How to prevent rotation on axis with torsion springs?
I am trying to model a cupholder sizer for a Honda Odyssey, similar to what the Toyota Camry has (example).
I've got a basic design in Fusion360 using torsion springs. What I'm finding though is that ...
- 101
0
votes
0
answers
28
views
Extruded aluminium profile - Connector question
So I've been using 2020 aluminium profile to build a box I've been using these corner connectors:
https://cdn.imgchest.com/files/my8xc58nnn4.png
They are great, but now I've got the problem where I'm ...
- 101
0
votes
0
answers
15
views
Confusion in deriving von Karman equation for strip rolling
In the derivation for von Karman equation for metal strip rolling, an infinitesimal element is chosen as shown in the picture above. The equilibrium equation for the element is as follows:
Upon ...
- 21
0
votes
0
answers
10
views
SolidWorks Balloons Not Referencing Top Level Assembly
I am attempting to annotate an exploded view of an assembly that contains subassemblies. In doing so, the balloon references do not match the top-level BOM.
My top-level BOM has 14 items, but the ...
-1
votes
2
answers
43
views
FreeCAD/OpenFOAM vs Paid CFD Software
I am a mechanical engineer who is dipping his toes in CFD for a work project, where we have an array of axial fans in a tower and we're trying to optimise the airflow (its actually two towers facing ...
0
votes
0
answers
24
views
urban concept vehicle with internal combustion engine (gasoline) Shell eco marathon [closed]
my question is, what components in the electrical system should we focus on and consider while building the vehicle? with the resources as well.
- 1
0
votes
0
answers
16
views
Gear shaft with 2 different diameters
Where can i find a gear shaft around 6 inches long thats keyed and has a half inch diameter on one half and 3/4 inch diameter on other
0
votes
0
answers
16
views
Aligning center of a short circular feature to a post's axis
Assume ASME Y17.5 standards:
Suppose I have a tall post and a short raised circle. I want the center point of the outer circle to be constrained to lie on the axis of the post. Is the below setup ...
- 1
0
votes
1
answer
17
views
eccentric to linear
How does one translate the up and down distance moved in degrees when rotating around an eccentric bearing
eg 10 degrees will get me X in a linear value
0
votes
0
answers
10
views
Boundary Layer Growth for Compressible turbulent flow
I intend to use the flat plate analogy to compare results that ive obtained via matlab and see if they match up, and am looking particularly at compressible, turbulent flow. I noticed that the Blasius ...
- 1
0
votes
0
answers
13
views
How much of the forward motion energy cost of a car is lost to bearings friction
If a car had perfect bearings with zero friction, how much less energy would it consume to keep moving forward, after cruise speed has been attained (not to accelerate to that velocity) than the ...
0
votes
0
answers
31
views
How can I link two plates in such a way that one is able to freely move in 2D planar directions relative to another?
I'm designing a mapping robot that basically bumps into wall and records the position in its log. As safety mechanism I want to install kill switches in min 3 directions around the roughly circular ...
0
votes
2
answers
27
views
What weight on a still stepper motor?
I want to make an extending leg that uses a stepper motor at the bottom, spindle upwards. With a screw thread at the end of the spindle. The motor will rotate to push up a nut which will push up the ...
