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.
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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 ...
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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 ...
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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 ...
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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.
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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
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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 ...
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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
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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 ...
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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 ...
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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 ...
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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 ...
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Electrical Two body problem
Depicted above is the instance of a spherical shell, at which a point on that shell is negatively charged. Imagine that this shell is fixed by a hinge at the center, at an arbitrary point in space, so ...
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Determine reading on gauge that doesn't have enough tick marks
Is there a way to determine what the reading is on this voltage gauge using graphics and math? For example, in a computer program, could I draw a circle and then plot evenly-spaced tick marks (between ...
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Does moving the idler in a wheel and disk CVT conserve energy or momentum?
Consider the wheel and disk CVTs (continuous variable transmissions) below. Configuration A comprises a CVT disk coupled to the "system under control" 's', whereby a control wheel 'cw' ...
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Hydropneumatic issue
Could you help me by giving me examples of a task that was left to me.
Design a hydropneumatic system for the actuation of transversal and longitudinal movement, applicable to a three-step precision ...
