Questions tagged [diagram]

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55 views

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 ...
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1answer
25 views

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 ...
5
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1answer
541 views

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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0answers
39 views

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 ...
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1answer
40 views

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 ...
2
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3answers
106 views

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 ...
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1answer
128 views

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 ...
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2answers
239 views

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+...
1
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1answer
162 views

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 ...
1
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1answer
89 views

What does this P&ID symbol represent?

The symbol: Here is a part of the diagram:
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2answers
4k views

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 ...
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2answers
81 views

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 &...
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1answer
49 views

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.
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2answers
72 views

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 ...
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3answers
3k views

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 ...
1
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1answer
183 views

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 ...
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2answers
47 views

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 ...
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2answers
232 views

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 ...
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0answers
24 views

Confused about information on a state transition table

I'm working with a State Transition table with a variable I can't identify. Here's the table: I'm pretty sure "a" is the present state. "b" is the next state and Sx and Sx+ are the inputs. ...
1
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1answer
264 views

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 ...
5
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3answers
3k views

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?
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1answer
2k views

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 ...
2
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1answer
671 views

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 ...
2
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0answers
52 views

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 ...