Questions tagged [diagram]
The diagram tag has no usage guidance.
32 questions
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Schematic Diagrams for Mechanical Systems
Is there some sort of equivalent standardized schematical (topological) diagram -such as Piping and Instrumentation Diagram, Electrical Schematics, Process Flow Diagrams, etc.- for the realm of ...
5
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3
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is bending moment on roller supports at beams zero?
isn't the bending moment supposed to be zero on roller supports at beams?
then why isn't it zero here in this picture at x=2?
4
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1
answer
1k
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I want to understand this pneumatic circuit
I have trouble understanding the following pneumatic circuit diagram:
I am new to reading circuit diagrams and i am unfamiliar with some of the symbols. I would appreciate if somebody could explain ...
3
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2
answers
344
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How are common free body diagrams and similar illustrations made?
Over my education I've come across tons of engineering illustrations, most commonly free body diagrams and similar. I still do not know what software(s) is used to generate these. So many look very ...
3
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0
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576
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Pv Diagram of a pressure cooker
For a bit of self training in thermodynamics, I've been trying to think of some random systems and go ahead and try to solve them, some of these things I've stolen from random googling of university ...
2
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3
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663
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Is an axial force applied at the centre of a beam considered a compressive force, tensile force, or both?
I was looking through some course notes and realized that I never fully understood this concept. So, looking at the diagram below we can see that there is a 20kN axial force being applied in-between ...
2
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0
answers
104
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Proper designator for a torque guard in a P&ID
What's the proper first letter designator for a torque guard in a DIN or ISO compliant P&ID? I find fist-letter designators for a few physical values (L for level, S for speed etc.) but none for ...
2
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1
answer
767
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Problems with shear force diagram in beam model
I am starting to learn how to use ANSYS APDL. So I don't have much knowledge in the software.
I have modelled a cantilever beam (with beam188 elements) and the only load that i have applied was the ...
1
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1
answer
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What software is used for drawing dynamic & mechanical diagrams? [closed]
I need to sketch some diagrams involving basic symbols like springs and dampers, specifying angles, perpendicularity etc... something like the images below:
Obviously my first option was word, then ...
1
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1
answer
981
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What does this P&ID symbol represent?
The symbol:
Here is a part of the diagram:
1
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2
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165
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How to get a transfer function from this block diagram?
Pardon my paint skills, I did my best
My attempt is short and seems to fail, I have no idea why:
$$\begin{align}
\alpha &= in - a_{1}\beta - a_{2}\gamma \\
\beta &= \alpha z^{-1} \\
\gamma &...
1
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2
answers
6k
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Electrical flowchart in Microsoft Visio : issues
I am trying to recreate in Microsoft Visio a diagram of a photovoltaic power plant that would look like the one below.
But I have some issues for doing so, in particular :
I don't know how to ...
1
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1
answer
511
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In a control block diagram what does a block with an angled arrow through it mean?
I have been looking at papers describing how to do non linear control with neural networks. A lot of these papers have block diagrams with a symbol I don't understand. There is a block with an angled ...
1
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2
answers
400
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Convention for spring symbols with lateral force
If you draw a diagram with a spring, is there any convention about how it should behave with lateral loads? I guess it might be either:
Rigid
Free
Elastic with bending and/or shear stiffness
Pin ...
1
vote
1
answer
485
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Shear force and bending diagram un-uniformly distributed load
I already got great help on this topic, but I'd like to make sure that I get it.
For example, take a beam of length 6 meters, left side fixed support and right side rolled support. There is a load of ...
1
vote
1
answer
32
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should the hachures in moment and shear diagram be vertical?
when we plot the shear or moment diagram we add hachures to the area created with these diagrams , in most cases we see vertical hachures, is it represent the internal forces? or its just used to ...
1
vote
1
answer
732
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How to check if bending moment diagram is correctly drawn
EDIT: I will state my test problem description and then my solution. But before that, I would like to apprise you of the absence of the actual description given during test (which happened in Zoom and ...
0
votes
2
answers
622
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ELI5: How does this water (solenoid) valve work?
I took apart this hose faucet timer:
When unpowered the valve is closed. When powered (either manually or by timer) it opens allowing water to flow through. I am attempting to learn how the open/...
0
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1
answer
612
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Triangle symbol in pneumatic diagrams
After searching details regarding direction control valves, I can understand that the diagonal line indicates solenoid valve actuation. The zig Zag line represents the spring action so in this case ...
0
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1
answer
1k
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Calculating the transfer function of this block diagram
I'm not really sure what steps to take to solve the problem. I tried with G4 and G2 first but I'm not sure if that is the correct way.
0
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1
answer
654
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How does one plot an Abbott Firestone curve
I have a Mitutoyo Sj-210, that plots automatically a Firestone curve. I have another device that gives me the SRM values and ect but no curve. I have no idea how the Sj-210 does it despite being ...
0
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2
answers
818
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formula for M(x) - Shear Force and Bending Moment Diagrams
I've watched the video "Understanding Shear Force and Bending Moment Diagrams" from "The efficient engineer" and i got a doubt in this exercise
For $4<x<7$ I arrive to $V=-6x+...
0
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0
answers
22
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Are there any standards that specify line weights for Function Block Diagrams?
Are there any standards out there that specify what line weights should be used when creating a Function Block Diagram or other similar block diagrams used in software, systems, or controls ...
0
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0
answers
19
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Is the average force diagram correctly put together?
I have done a cut in an object to perform calculations of where the object experiences the most stress (the most critical point). The cut will create Shear force (V) although this will be 0, axial ...
0
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0
answers
23
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Tearing diaphragms on Saunders/Crane 1.5'' EC actuator valve (6 - 8 bar normally closed)
I am having torn diaphragms on my skids (used in pharmaceutical production plant). The tears are coming from 1.5" actuator valves (Saunders/crane EC type actuator normally closed, air to open [6 -...
0
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1
answer
63
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How to use this multi view diagram to create a isometric diagram?
I just started out learning about isometric and multi view and am already confused. Can someone help create an isometric shape from this multi view diagram? Thank you.
0
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0
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40
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Help understanding Engineering diagram
My problem basically boils down to the fact that based on my reading of this diagram, N = G + H, but based on the table of dimensions, it is not true.
The diagram is from this document (OIML R 49-2 ...
0
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1
answer
90
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How to get difference equation from this block diagram
I was posed a very similiar block diagram in my exam from this book (Alan V Oppenheim Ronald W Schafer - Discrete-Time Signal Processing-Pearson Education) but couldn't solve it:
I want to solve for
...
0
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0
answers
215
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Function Structure Diagram for Tennis ball launcher
I created this Function structure diagram for a tennis ball launcher for my homework and am not sure about inputs and outputs please- are they correct please- it feels like I could include more in the ...
0
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1
answer
227
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What is the meaning of this symbol in Control System Diagram
I was reading the paper "Full-Speed Range Self-Balancing Electric Motorcycles Without the Handlebar" released in March 2016 by Professor Yang and Murakami in Keio University.
I couldn't ...
-1
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2
answers
55
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What is the engineering way to describe a factory / manufacturing plant system in a formel and mathematical way
I am interested in mathematically describing as well as formalising a manufacturing plant so that other people in the engineering field understand how the system works. I am not from the engineering ...
-1
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1
answer
52
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Block reduction need someone to check my work
I tried to solve this block but I am not sure if the end result is any good, some feedback would be nice.