Questions tagged [mechanical]
The mechanical tag has no usage guidance.
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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 ...
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Motor torque required to move a trolley
This is a real situation.
The trolley is mounted with a rack underneath it and multiple steel wheels on a steel track. The trolley is driven by the rack and pinion mechanism from a geared motor.
The ...
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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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Single millinewton strain gauge suggestions
I am working on a project where the precise & accurate measurement of single millinewton forces has become a significant boundary. Is there a cost effective device that is able to measure such ...
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Electronic enclosure - Long screw holes
am designing an electronic enclosure for a medical device. For assembly reasons, the enclosure is split into two halves, with the bottom half having a depth of 200mm and top half of depth 50mm. I want ...
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Method to calculate required gear size and teeth size for a rack system for a certain amount of travel?
high school amateur engineer- and first-time poster- here. I'm making a Nerf automatic springer system, and I want to model it. However, I don't know what size rack and gear system I need. I need 60 ...
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Cryogenic pump - why is this part slotted?
What is the purpose of that slotted area?
In my opinion it is done that way in order to prevent it (the impeller) from sticking to the pump body in case it is not properly cooled down.
Some people say ...
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Find stresses involved and calculate magnitudes
I am new to mechanical design.What all forces and moments act on the hinge plate in following figure?How to find magnitude of stresses induced on the supports?
Note: The spring is an expansion spring ...
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Free body diagram problem: Linkage w/ magnets and friction hinge
I am a bit stumped on a IRL problem, which i simplified in the diagram below:
There are left and right beams (gray) linked together by a friction hinge. The bottom beam (black) is connected to the ...
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Understanding moment load on axis (for robotic arm)
Check Pete comment for explanation below :) thank you Pete!
I need help understanding a concept im struggling with for quite a while now.
Im looking at different type of robotic arm designs, and some ...
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Spring compression and quick release mechanism
I'm in a group and we're designing a wheel that can inflate and decompress using springs. The purpose of the string compression/decompression is to give our tires this jumpy/bouncy like movement. ...
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I need a good description of a flow control valve for a tankless gas geysers. Preferably the battery type
I need to understand the working of the flow control valve of a battery operated tankless gas water heater.
It's the two or three knob geyser that uses 2 x D-cell batteries for ignition.
But I ...
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how to interpret ISO2768-mK angular tolerance
How to apply tolerance for angle based on ISO-2768-mK? Cause I am confused about the statement "Permissible deviations in degrees and minutes for ranges in nominal lengths". Lets say I have ...
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Can anyone suggest an Economical way for Polishing wound Wires?
I am working as a mechanical design engineer. At my work place, we were making chairs with 12 mm diameter wire via bending. We were using mild steel flash wires which was like the perfect wire with ...
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What is the difference between 7201 vs 7201 BEP Single Row Angular Contact Ball Bearings?
What does BEP mean when applied to types of ball bearings?
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How do rotate a picture on a wall once every 24 hours?
I have a picture with various day and night scenes that I would like to hang on a wall and have automatically and uniformly rotated once every 24 hours. The picture is roughly 55cm in diameter, 2cm ...
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What strapping mechanism is this?
What should I google to find the strap from the picture?
It looks like a screw is used to tension the strap, which is exactly what I need. I've already spent some time trying to find a manufacturer ...
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Force Required To Stop A Freely Rotating Wheel With Attached Falling Object With A Spring
I have a wheel with a diameter of 2m and a weight of 67kg. The wheel has a radius of gyration of 0.82m. From this wheel a weight of 35kg is suspended. The weight will fall for 10m and accelerate the ...
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I want to cover a circular area with a sheet that is rolled onto a curved metal rod
My challenge is that the sheet gets bent in places around the rod making extension challenging. Another challenge is that since the metal rod is curved it turns in an awkward way that I want to ...
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How to attach plates (my design) to the stator core of the machine more efficiently and precisely?
I am working on an electrical engineering project. However, I have come across a specific mechanical engineering problem. I have attached an image to describe what I want to do. I have primarily a ...
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Kindly explain this graph which is related to internal combustion engines
Hello,
I am not getting this graph which is related to the Internal Combustion Engine.
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Need help analyzing torque transfer and slippage condition between parts
I have a scenario where Plate A (light blue) shown in the image below is being pressed against two different plates that are in contact with different sections of Plate A. I would like to know which ...
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New to AutoCAD, trying to accomplish a simple task of trying to simulate how much force can a U channel withstand
Sorry if my question or parts of it seem vague or stupid, I'm fairly new to mechanical engineering. I'm part of a team that is building a simulator platform and I am mostly at the helm of the software ...
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Wind Turbines on Cars used for Aerodynamic Braking
After a lot of research, I have found that people have been continually claiming that Wind turbines on Cars would not help whatsoever due to the Law of conservation of Energy. While this statement is ...
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Motor for a sukkah rooflight
im designing a motor for a roof light but will need to be disengaged from the motor and be able to open and close without any electricity.
any ideas would be greatly appreciated
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Mechanical linkage
I am not an mechanical engineer and I have a question about this laboratory rocker (https://www.thingiverse.com/thing:2948680/files).
As I wish to reduce the height of the Model_Base.stl by half, by ...
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Characteristics of a smooth belt
I want to replace a cylindrical pulley, so I came across a component called a smooth belt.
Now this thing came with many differenent variations, from 2.00" up ...
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How to determine whether a threaded rod will rotate under load
A part of a structure I am designing incorporates a large threaded rod (1") diameter mounted vertically both for structural strength and for the potential to adjust the height of the top mounted ...
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Frames and Statics Question
this is an image describing an exam question I have to practice on, and I am so stuck.
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Building Equations of Motion
The following figures represent a model of a building, can someone help me, extract the newton equations of motion and determine the degrees of freedom.
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