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Questions tagged [diagram]

33 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 mechanical engineering? I just need to draw the overall…
joojaa
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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?
niosha afsharikia
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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 them to me. In particular I have the following…
engi1
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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 exams, while others I just considered. While…
DrMrstheMonarch
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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 similar, and I haven't been able to find out how…
dan
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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 force or torque. As of now I'd use WS+ (W for weight,…
mart
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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 self weight. When I ask for the shear force diagram…
Marina Vendl Craveiro
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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 sections (1) and (2). Looking at the force from…
TwoWaySpeedOfLight
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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 highlight the area ? and can we use inclined…
Samir Benabdelaziz
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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 there I was provided with the link leading to…
sergei ivanov
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What does this P&ID symbol represent?

The symbol: Here is a part of the diagram:
storgt2
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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: $$\begin{align} \alpha &= in - a_{1}\beta - a_{2}\gamma \\ \beta &= \alpha z^{-1} \\ \gamma &= \beta z^{-1} = \alpha z^{-2} \end{align}$$ inputting 2nd…
user1477107
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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 arrow drawn through it. The tail of this arrow is…
Clendon Gibson
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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 jointed - Initially free but as the spring rotates,…
user1318499
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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 30 kN-m that starts at 3 meters and ends at 6…
Lazarus Jaeger
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