Design Definition and 1000 Threads

I work in the mining industry, focused on the development of solutions related to environmental protection. Although my background is in Natural Science and Ecology, I have a passion for physics and engineering! I am always interested in expanding my knowledge and ability to design and...

Hi All I'm designing a pneumatic filling machine and I'm looking for this parts in the photo attached so please can anyone knows where can i found it? Thank You

https://www.reddit.com/r/EngineeringStudents/comments/4213b7/my_worst_fear_has_finally_come/ Hey guys, as shown in above link, I've explained my almost no engineering knowledge and no experience in design project, which put into an intense anxiety attack. I really do not want to trouble my 2...

Homework Statement I would like to know a way to design an impulse input in a Matlab Simulink model. I know there are step input and ramp input blocks but there is no impulse input block. Homework Equations The Attempt at a Solution If any working is needed please let me know

Hello, I will be conducting an experiment to create a sugar monocrystal, the device I will be using (apologies, English is not my primary language therefore I do not know all the proper terms) will be modeled and influenced by the one described in the paper "Soft-sensor for industrial sugar...

Hi there, I'm currently designing a C Clamp (or U clamp as some may call it), however I'm new to this and was wondering if someone could tell me what calculations I need to do? The clamp is to fit on a fence structure and can be re positioned horizontally or vertically depending on the fence...

Hi, I'm analyzing a composite leaf spring using ANSYS APDL, the leaf spring has a thickness of 12mm, and since it is a composite material, it is composed of many plies, I'm assuming the ply thickness to be 0.125mm. I imported the geometry as a Parasolid x_t. And the element type I used is...

In magnetostatic simulation model I design the winding as a volume of copper and assign a single plane on the volume of copper as current excitation terminal to define the winding current value and its direction. In transient model when I am creating coil terminal for a winding, I need to...

Hi As described in my previous post I am looking to make a foldable mechanism of an arm hinge. I have changed my design into the one shown in attached image. I plan to use spring split or coil pin to constrain radial movement in the hinge (yellow and red). Adding a bolt through the hinge...

Hi everyone, I am starting the re-design of the PLC software for a preexisting Truck Crane Loader. I will receive the Weight Chart to see what the limits are and I was wondering how to exactly calculate the resulting weight on the Crane. The CRANE is already on place, it has two joints and a...

how change the standard adopted during designing in ANSYS Static Structural? i am new in ANSYS. Please help

I was pondering Mars missions and wondered about what kind of vehicle an astronaut on Mars would need in order to get home. My first thought was that Mars gravity is .38 that of earth, so he would need a rocket about 38% as large to get off of Mars as he needed to get off of earth, This of...

Hi! I am looking for some guidance as to what statistical tests I would need to do to know the significance of a study. The situation is this: Disease in Question is Sinusitis Gold Standard for Diagnosis is CT, but is seldom done as not all cases require confirmation. Cost-effectiveness...

I have a qustion about two types of accelerating designs. In these types of design the plates get longer or spaced apart because the frequency of the RF power is constant but the particle is acclerated so it covers more distance in less time. The other type of design looks like this: My...

Hello guys, I am working on designing a flywheel to couple to a generator however i have a small problem and i have low knowledge in flywheels I have a pinion rotating at w = 14.13 rad/sec and torque Tpinion = F*Rpinion = Mass of inertia *alpha pinion All is known I can find Tpinion euqal...

I want to design electromagnet for my project. I want to know which formulas are used while designing electromagnets and methodology if we know repulsive force we require at a distance of 25mm from one end of electromagnet.

Hi, I have a question concerning car front suspension geometry/design like the macPherson suspension. I would like to know the influence of geometrical factors in the suspension behaviour. The factors in which I'm interested are : spring/damper angle, spring/damper position relative to the wheel...

Hi pf, I know that the stream turbine blades are twisted in design so that when steam is forced across the face there is a torque exerted on the turbine. If you look closely at the blades then they are roughly at a 45 degree angle to the oncoming steam which means a component of the force from...

how can i design an even number generator with a 4 bit counter without using any flip-flop , Using only 4 bit counter?

Hey, i would like to know how i can make a DC-voltage-sweep in CST Design studio with Current. I have a simple circuit consist of a diode and i want to see what is the current across the diode with different values of dc voltage. Does anyone knows, how can i do that ? Many thanks !

Homework Statement I'm not sure if this belongs here, sorry if it does not. I am trying to find the most amount of mass a bridge can hold before deforming/collapsing. I was trying to factor stress/ultimate tensile strength into it in a way. Is there a way I can calculate ultimate tensile...

Hi all, I am learning DDL ( as opposed to GUI ) table design in MSSL2014. EDIT I am given a table printout and I want as an output the(a) DDL code that would output the given table. Sorry, I don't have a scanner nor the original file in my PC, I have a table diagram in a piece of paper. I...

Hi, i am a student of bachelors of mechanical engg. (2nd year). I want to build a go cart. But i don't know the basics. I don't know a thing about automobiles. I am learning the catia software for designing. But i don't know what kind of "calculations for go cart" must be required to design the...

I have a hollow 2024-T3 rectangular bar and need to check its mechanical and physical properties. So i went through the MIL-HDBK-5J, and it have 3 choice for this material; 1. Sheet 2.Drawn tubing 3.Extruded Bar,rod,and shapes. so for hollow rectangular bar, which one should i choose. 2 or 3...

Hi All, Does anyone perhaps now of a book or free video course on alternator design, Like where I can learn about how to design alternators? Sorry if I posted the question in the wrong "apartment" of the site. Thanks Dilan

Hello all! I work for a machine design & manufacturing firm. We also do machine repairs & refurbishing work. We currently have taken up a project where-in an we have to solve a critical problem in an automatic part washing machine. The machine is a multi-stage concept, wherein the parts are...

Hey guys, hope this is in the right place first off, but anyway, for one of our engineering projects we are required to design a "rover" that can transport a maximum of 40 pounds (the increments in weight increases by 10lbs per run starting at 10lbs and ending at 40) a minimum distance of ~20...

Hi folks, I would like to clarify few doubts on my mini-project as mentioned below: I am designing a small kit using a transistor (2N3904) and an OP-AMP (LM741- Voltage follower) with few resistors connected to them. My power supply voltage value is 5V. Please refer to the below picture for...

Homework Statement Hello! I am doing some rough design on an elevator-system and I have now come to the brake. Here is my system: The text is norwegian but "rdriv" in the first image is "Rdrivskive" in the second image and it's this wheel that is dragging the rope. The "Brems" is where I...

Any ideas on how I could model a deoxygenating system and which software would be best to use to do so. Thanks

In my circuits/active devices course we had to make amplifier designs with various type of transistors (BJT, JFET, MOSFET). In each design the transistor beta parameter played an important role in deciding which resistors to use in the final amplifier circuit. This beta parameter changes widely...

Hello, I was dissecting an old TV when I came across a set of speakers. They're 8 ohms, though I'm not sure if they're 8w or 6w.. I decided to make my own portable speakers (mono), which could be connected by means of an aux cable to my smartphone. I don't know what's the output voltage of...

Homework Statement [/B] Plan an investigation to evaluate wind power as an energy source with equipment: • model wind turbine • multimeter to measure the voltage generated • anemometer to measure wind speed • hair dryer to generate wind power, set on cold • metre rule to measure...

I want to design a wind toubine ,I know the wnd vel,I need certain amount of power ..How to design it and how to calculate at which rpm will it rotate to deliver my required power?

1.Hey guys! I will need to design a floor with slab, beams and columns. Brickwall should rest on top of beam as possible. How about low wall, does it needs to rest on top of beams as well? Thanks! 2. No equation 3. I've designed some, but without low wall, that's what made me curious...

Hello, As part of a project I'm working on, I need to mount a shaft to a sheet of plywood or plastic. On this shaft will sit a gear which rotates. The shaft, however, should not rotate or move in any way. I have tried using a threaded shaft, mounting it to wood just by screwing in two nuts on...

I have been asked to design a pressure vessel and the data given to me for the problem is - content -oil of density 0.9 g/ cm3. material with ultimate tensile strength of 70,000 psi. factor of safety 3. volume 50 m3. How do I calculate the internal pressure and diameter, which I will need to...

Objective: Design/construct container to safely land a raw egg when dropped onto pavement from top of bleachers. Materials: Standard Toothpicks, Standard Straight Drinking Straws, Standard Sewing Thread, Cardboard, Masking Tape Requirements: Egg cannot crack. Container mass < 30 grams without...

In my textbook we are given the equation for design factor as: ## n_d = \frac{1+\sqrt{1-(1-z^2c_s^2)(1-z^2c_\sigma^2)}}{(1-z^2c_s^2)} ## where z = the z score, this is determined from reliability which is given in the problem. A high z-score means we demand a very high reliability. ##c_s =...

I am currently designing a lubrication system which uses a positive displacement gear pump. So how can I get the flow rate of a lubrication system? i don't know which equation to use. thank you so much.

I would like to know a typical W/L value for a MOSFET transistor. L = channel length W = channel width/transistor width I am currently designing L to be L = 0.0001 cm for a transistor. Cox = 5nF mobility 1155 cm^2/Vs K = 0.583 mA/V^2 This gives W = 20 cm. But this is way to large for a...

Homework Statement I want to design a circuit that is able to differentiate an sms signal and also a telephone signal. What I mean is the telephone signal is when someone calls you. Example , when someone sms you , your circuit will detect the sms signal and LED 1 will light up (use to...

Hey everyone I'm trying to design a simple time delayed device. Device could me mechanical but it doesn't really have to be as long as it does what I want. Just need something that is relatively small could be wide and tall just not thicker then 1 inch. The device should have a arm/button...

Hi everyone. I have seen the design for an NPN Cascode many times, but I want to build a PNP Cascode. I have scoured the internet for a standard design, but to no avail. The image below is that of a NPN Cascode. I want to create a PNP cascode by flipping things around. I have placed a red line...

<< Mentor Note -- Thread moved from the technical Engineering forums so no HH Template is shown >> Project Description: Design a Digital Stop Watch using discrete electronic components Functions: Start, Stop, Reset Should be able to count up and count down The interval time should track the...

First post here. Looking forward to what I find here. I've always enjoyed fabricating and what not. So my dad opened a distillery and I went down to help out with bottling last week. It's an assembly line for sure. Each person has one job and you just pass the bottle to the next guy. Well...

hello everybody i have a question, i am good at maths and physics and thinking about study engineering but one think something scares me is to design. In fact i think i will love all the theoritical part of the study (maths, physics, static , dynamics exercise) but i don't know at all if i will...

Homework Statement The aim is to optimize this actuator to get the maximum force from it. Here is the circuit diagram below: Homework EquationsThe Attempt at a Solution Length of air gap top (Ragt in diagram) = 0.5 mm Length of air gap centre (Ragc) = 0.25 mm Current in coil = 0.8 A (I...

Hello I am an electrical engineer freshly out of school and i was wondering if anyone could help me reach an answer to this design problem. I am attempting this problem solely for personal knowledge because in school I never took a course on distribution design. I found this problem looking...

How significant is the effect of tire tread pattern/design on the performance.I searched a lot but could not get any satisfactory answer. I know some designs favour better grip over speed (high rolling resistance), some are better for wet conditions but is the difference in tread design very...