Design Definition and 1000 Threads

Homework Statement You want to construct a simple particle accelerator and hit on the following design: you will take two oppositely charged plates with small holes drilled into them and set them up parallel to each other. You will create a vacuum between the two plates and fire a beam of...

I'm trying to design a bandpass filter with a BW of 50MHz in LTSpice, however my simulations aren't coming out as I'd like. I'm using the frequency transformation method, with a centre frequency of 2GHz., fractional BW 2.5%. I'd like a wider passband, however I can't seem to get away from the...

Is it made of quartz or stainless steel/aluminum or what? Does it matter which?that's all I need to know, I just can't seem to find if they can be made of standard vacuum metals or if they have to be quartz. Only really seen some diagrams mention quartz tubes but the pictures of large ones seem...

hello guys... i m confused about my carreer, should i go for electrical design engineer or elctrical site engineer? which one is better for me?... and how can i get started? i recently did my Bachelor of elctrical engineering..than

Hello everyone! I'm a aerospace engineering student. I'm working in my own program for blended wing body aircraft parameterized design. I'm triyed to use Tornado program but it doesn't even allow me to setup the geometry, after introducing the chord the program goes in a bucle and when I stop...

Hi all, Like a lot of folk on here I am interested in the idea of a CMG used to stabalise a single track vehicle.<< Link to CMG info added by Mentor >> https://en.wikipedia.org/wiki/Control_moment_gyroscope I have designed this; the pink discs spin in opposite directions and the pendulum...

Hi, I need to create an electromagnet that can lift a 1 KG Iron block that is kept at 30 cm away from the electromagnet. I have a DC power supply(RXN 305 D) that can provide a voltage of 0-30 Volt and current of 0-5 A. I need to limit the current used to maximum of 3 Ampere. Please help to...

Homework Statement Homework Equations I think it will make use of tables... The Attempt at a Solution Can someone tell me the solution step by step of this problem? Help me please :( Thanks in advance..

I'm designing a fixture for quality control and need a few precision holes. Their diameters range from 1/8" to 5/16" and need to be ±0.0002" with a depth of 1/2". I've been looking into EDM hole making and honing, but neither seem to be great for that range of diameters. Anyone know of any other...

Homework Statement Design a filter that will pass frequencies greater than 20 Hz and set the -3dB point at 10 Hz. Assume zero source impedance and 10k load impedance. Homework Equations ##f=\frac{1}{2\pi RC}## which is the equation used to determine the 3 dB frequency of an RC filter. The...

what is the most promising gen 4 or 5 nuclear reactor design? i heard bill gates wants to invest in traveling wave reactor. to limit the field, it has to use uranium, must be economical, must produce very little waste, must be safe, and it can be built with current technology. built in a...

Hey everyone, Looking for someone in the know regarding RFID reader antenna design. Part of a project I'm working on requires a custom RFID transmitter antenna. If possible, I'd like to design the antenna as an integral part of a steel cylinder. I know there are on-metal tags, but is it...

Hi people of this forum, I have a serious issue at hand right now. I am currently a 3rd year Bachelor student of the Aerospace Engineering at SRM Universty, India. I will be entering my Master's in Aerospace Engineering at the University of Dayton in the fall of 2016 under a Dual-Degree program...

Accelerometer Design: You have been asked to help design an accelerometer with a measurement bandwidth of 1000 Hz using a cantilevered design (see figure). The cantilever (c) has a rectangular cross-section and the proof-mass (m) is 1 gram. The cantilever can be made from single-crystal Silicon...

Hi All, I have a question regarding the design of the pressure vessel. What is the Maximum allowable working pressure (MAWP)? What is the Design pressure? What are the differences between MAWP and design pressure? I know their definition but i am struggling to understand. For example...

I am finishing my degree in Mathematics and will be enrolling into a Mathematical Physics program. My goal is to work with Semiconductors. Is this possible to find software that chip design engineers use? I would like to design my own chips with software to build a basic understanding that...

Alright everyone, I know this is a huge question, but I've done enough homework to at least have informed ignorance on the subject. I posted a similar topic here, but that question was more conceptual and this definitely is much more of an applied use question. (Edit: I realize that the above...

what should I do if I get too small PU making my "AST" (area of steel bars) negative in designing of column?Pls. help thanks a lot.

hello are there software to design alloys in silico or other materials and see how they would perform? thanks!

I have a water tank fed from a piping system that has very low head in it. As a result flow tends to be low. See sketch below. I am thinking of ways to boost the flow. I already have a centrifugal pump at the site. Could I use its flow to boost the flow from the incoming pipe via a venturi /...

HI everyone. I was just wondering about a career in the IT (I study communication systems engineering, but I'm rather interested in coding, rather than Internet and communcation systems- related stuff). I wanted to ask you, given the advances that technology is making, which skills would be...

My friend is doing this for his final year design project and has hit a brickwall in terms of understand the actual process. Any help would be appreciated!

is there anyone who knows a company that can design single phase induction motor prototypes in the UK..Thanks for your help

That is in a tandem cycle where one set of pedals go to the front and the other to the back. So it's an all wheel drive, but when two people ride it, how do you prevent relative slip due to difference in pedalling? Any help would be very much appreciated.

Need help with an application I am thinking of. In this application just 10 cubic inches per second of cold air is needed, that too for 2-5 seconds only. Also, not a lot of cooling/heating capacity is needed, just 30C of air cooling should be sufficient. How would we construct such a device? I...

Homework Statement If the coefficient of static friction is 0.38 (wet pavement), at what range of speeds can a car safely make the curve? [Hint: Consider the direction of the friction force when the car goes too slow or too fast.] Homework Equations I am trying to figure out the Vmax 3. The...

I need to determine the Lagrangian of a 2 link Robot arm with 3 degree of freedom.

I understand that when wind hits the blades straight on it spins for the same reason a pinwheel spins when you blow straight at it. But when wind is hitting the "cutting" parts of the blade how does air foil design help there? Wouldn't the lift generated by the air foil not matter since the...

Homework Statement hello, i need to design analog circuit that has a transfer curve as seen in the following image using resistors, capacitors,voltage, and BJT (with beta value of 100). the parameters are: A=75 f1= 21Hz f2=21 KHz M1=40 M2=-20 the circuit also need to have input resistance of...

Dears, I'm looking for a book named: "Handbook of automotive powertrain and chassis design" by John Fenton & coudn't find it , any help please.

Looking for a solid introductory text on computer logic with emphasize on hardware design. There is tons of material out there, but it seems to me most of them are oriented towards low level software design, rather then hardware design: lots of register transfer codes, VHDL/Verilog simulations...

Hello folks. My name is Louis and I am the owner of a nail salon. I've suffered from pretty severe neck and shoulder pain for at least a year or two now, to the point of tingling and numbness radiating down my arm and leg when I crack my neck to try and relieve the tension. This is a huge...

In exhaust tuning it is well established that a 4-1 header provides the greatest Hp but only at peak rpm. For a more street efficient system a 4-2-1 give more gain at low rpm and moderates the peaks. Conventional design criteria says to tune the primary tubes to reinforce the rpm you want...

A Simple Plumbing Problem Sent Galileo Satellites Into Wrong Orbits http://spectrum.ieee.org/tech-talk/aerospace/satellites/a-simple-plumbing-problem-sent-galileo-satellites-into-wrong-orbits There is a reason we have design processes, with independent reviews, and detailed simulations. The...

Hi everyone... I have to design a single phase induction motor. I have some questions and it would be great if you could help me. The parameters I have for the design of the motor are: rated power, rated voltage, frequency, rated speed, power factor, efficiency, full load current and full load...

As part of a research project, I've been asked to design an industrial scale model for the synthesis of titania nanowires. These are currently being produced at a scale of 500 g every three days (being that it takes three days for the nanowires to morph using the given method). My director has...

Calculating the input power required for a drive gear in a train. I have 4 gears, all in line. The driver shaft A rotates at 100 revs/min and the gear has a diameter of 40mm. 20 teeth with a module of 2mm The output is to rotate at 400 revs/min and has a diameter of 160mm with 80 teeth and...

Sounds pretty good: http://www.theverge.com/2015/5/16/8615089/vortex-bladeless-wind-turbines-shake-to-generate-electricity I like this particular idea a lot. With no blades, these take up much less space, and the claims about them being 50% less expensive to make, and lower maintenance, seems...

Homework Statement Hi, it's me again. Now I am going to design a 4-bit magnitude comparator using just ONE 4-bit adder and infinitely large number of gates (AND, OR, NOT, NAND, NOR, XOR, XNOR) for signed numbers (negative binary). Homework Equations A > B => A3barB3 + A2barB2x3 +...

Little bit of a disclaimer: if you take a look at my first (introductory) post, you'll see that I'm working towards aerospace engineering; therefore, this is leaning towards turbopump design, but for the time being I'll start out slow. Basically, I'd like it if anyone could help me get a sense...

How do I evaluate the price of the vibro-feeder that I'm modifying? I need to find out how much it would cost to create individual parts, i.e. 1.5mm formed steel or aluminum plate etc. I guess I should evaluate raw materials first but how much does the preparation costs, any reliable websites?

afternoon y'all, I'm looking for some references on damper design, piston-in-cylinder type since that is the most common. Does anyone know of any textbooks or handbooks that focus on this material? I'm working on some designs for a dashpot with air as the damping medium. Cheers

I read a little bit about General Atomics EM2 reactor in the December issue of Nuclear News that someone had brought to work recently. I haven't had a chance to read all of the article and I am curious about this reactor design. Are any of you involved in it? It claims to be able to run for 30...

Hi, I have been asked to create a mechanical drawing of a Shell and Tube Heat Exchanger as part of my course, and have been given some drawings as an example of what mine could look like. I have managed to create drawings on CAD using the example as a target point, however with some of the...

Hey guys I'm new here. I'm an ME student and I'm working on a project. I originally posted this on my350z forum and no one replied. Maybe it's too boring I don't know. If anyone has experience can you help me? Thanks. Hey guys, so I've been recently delving more and more into my z and wanting...

I believe what I am attempting to do is not possible but here goes. I want to design a fixed overall length coil which I can manually adjust the pitch on. Optimally one would be able to grab the coil and by twisting it in place would be able to change it's pitch by changing its diameter but not...

I have to design accumulator of energy. Let's consider insulated cylindrical tank with water. How to calculate all heat losses. Should i consider convection between water and wall and then conduction? but what with all sides of tank? It would be easier with single wall. how to get all...

Hi all Are there is an idea to design (thermal design )the size of an small electric steam boiler if the heat input is about (10 Kw)

I know this may not be a typical question for the Physics board. I am a MA Design student working on a project to illustrate experiments on speculative/fictional physical events. My final work will consist of strongly simplified staged experiment lab situations and should touch on the imaginary...

Hi, I need some help on my system analysis and design assignment. I need to put together part of an outline for a deliverable. Below is a little bit of background on the project. This project will design and implement a customer relationship management system in order to provide superior...