Design Definition and 1000 Threads

Dear all,i have recently been provided a task of designing a basic gear box for a vehicle having following engine specifications: 127cc, max torque: 7.8N-m Max. RPM: 3200 How do I proceed for this? Please guide me what all additional information is required for this calculation and what all do...

Hello all, My robotics club at school will be entering the VEX Nothing But Net competition. We are beginning to design the robot and it's launcher specifically. We want our flywheel design to be two wheels on each side, on a horizontal line like this. We would squeeze the balls between the...

The problem involves a a heater and three jacketed reactors. The reactors are heated by water supplied by the heater. Determine the heater size(in kW) required for this service if the heater is to be sized so that it is large enough to handle all three reactors when they operate at full...

Homework Statement Not surprisingly there is an old forum post on this topic: https://www.physicsforums.com/threads/proving-force.46215/ However it doesn't contain the answer. Reposted: Two physics students are having a debate about the best way to define a force scale using rubber bands. Each...

to keep it simple, I will explain what I basically need. Imagine a rectangular Plastic brick. With 10 small holes on the bottom that would release fluid. There is a cap on the top of the rectangle box that the fluid will be poured into. And a press style button on the side of the rectangle to...

Are there any good design resources on masonary wall design? Specifically, I was considering an above-ground, open-to-sky, rectangular tank storing approx. 25 m3 of water in it. Is it possible / economical to build such a tank out of masonary alone or does an RCC construction become economical...

Hi guys, I want to design a gas burner and combustion chamber. I use natural gas as fuel. I want to control air to fuel ration, so air flow has to control. I have an air compressor as air flow source. Clearly, it's needed a mixture tube before the combustion chamber. Now I have some...

Hello Guys, This is my first time posting here - just wondering if anyone has some insight on a project that I am working on. I want to be able to temperature control an insulated shoe box sized volume at ~5 degrees Celsius for about 20 minutes. The main constraints are that I would need the...

Hello guys, I'm looking for some help. I'm reading a paper called "On Flywheel Leg Press Design and its Benefits". I'm interested in calculate the forces that a flywheel machine that I'm building (used for gym exercises) will require the user to use it. Following this paper, they start to...

Hi everyone, I'm taking a Design of Experiments class which is focused on statistically designed experiments. I'm a bit lost for project ideas and this is my first graduate class. Would anyone have any ideas for an experiment that would have at least controllable factors that might have...

I've taken a year out of university to work at a design company and they have given me a project to design/make a test rig which measures the position of a metal shaft within an actuator assembly to check if its within a +/- 0.2mm tolerance. Some of the key requirements are: No contact with...

Hello For my study I'm making a specific design I'm trying to design a ballast chamber which i want to empty with a venturi pump I attached a schematic image of the idea Through pipe A a liquid is pumped with around 150m3/h through a 6'' pipe. The pipe is narrowed at the end, with a space...

http://news.sciencemag.org/physics/2015/08/secretive-fusion-company-makes-reactor-breakthroughAbove is a link to a news story about the recent Tri Alpha Energy “breakthrough”. It looks to me like a very nice development in increased stability of a proposed reactor design. Tri Alpha emphasizes...

So here is the problem, I major in electrical engineering and my sister works in a small furnishing company and recently the company got an offer to furnish a hotel with 25 rooms. And she asks me if I can design the electric circuit for that hotel.In school I learn electric machine and how to...

Hello everyone, For the past 4 years I have been working on a new type of musical instrument that fuses together elements from electronic music into the acoustic realm. The instrument consists of 26 strings inside a wooden enclosure that are actuated (or "bowed") by the use of electromagnets...

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 everyone! I need some guidelines on how to calculate and design an external oil cooling system (the oil cooler is located outside of the oil tub) for a thrust bearing. Could you please give me some links to standards, handbooks, manuals etc to start with? Thank you.

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 /...

Hello I have a question about design oscillator with linear small S parameters.If you assume I use a Common emitter configuration and put my resonator at input port (Base/Emitter). After I select a Gama(G) in unstable region in input smith chart plane(for example Gama(G)=A<B (for example A=1))...

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.

ABAQUS :-i'm trying to tilt a rigid body with point structural mass by tilting a rigid platform acting as ground , the whole body is under gravity, i have to analyze the counter bars standing, while trying the issue the following error was shown. "Rotary inertia for the rigid bodies with the...

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...