Analysis Definition and 999 Threads

Hello, my name is Leon and I attend to a Mechanical Engineering College. (I'm sorry for any grammar mistakes, English is not my first language) I'm trying to calculate the reactions of a Formula SAE car's suspension to the chassis, but I'm getting some strange answers. I hope someone here can...

Hi, How can one calculate background rejection from a background sample applying cuts ??

I am looking for conformal transformations to map: 1. Disk of radius R to equilateral triangular region with side A. 2. Disk of radius R to rectangular region with length L and width W. 3. Disk of radius R to elliptic disk with semi-major axis a and semi-minor axis b. Thanks!

I've calculated my gear ratio to be 1:27 and the most suitable reducer for it would be a worm drive. I couldn't find any descriptive tutorials to do the mesh and perform constructional analysis of the gears on SolidWorks. Can you help me?

Hi I am trying to teach myself Measure Theory and I am using the book: Real Analysis by Stein and Skakarchi from Princeton. I want to check if my answers to the questions are correct, so I am asking: Does anyone have the answers to the questions in chapter 1 ?

Hi, I have to check the buckling of a beam in fire. To do this I am following the below stages: 1. Conduct a heat transfer analysis ( transient ) for 30 minutes in fire , to find out the temperature history of the beam. Please not the temperature of the beam is not uniform 2. perform 6 runs...

I tried posting this question in this forum a couple of weeks ago, but didn't get an answer to my question. I'm going to try posting it again using the formatting template so that it is hopefully clearer. I am also not sure if this is the right forum to be posting this in. It is a problem I ran...

Dawn spacecraft is equipped for gamma and neutron spectroscopy to analyze the chemical make-up of Ceres surface material down to a depth of 1 meter. To do this it must first descend to a low altitude--the target is 375 km. It has already descended to within 600 km and it seems likely to reach...

Hi, apparently (as seen in my school's online library page) my school has Problems and Theorems in Analysis by Polya and Szego. I hear this book is really good, but I am wondering if this book is good for learning real analysis. I haven't looked inside the book, but is it like an inquiry based...

Homework Statement Use nodal analysis to calculate Va, Vb, and the currents IE1 and IE2 without using source conversions I have tried this many, many times, and I must be missing somethingHomework Equations [/B] The equations I came up with: VA-10/ 1.1 + VA/1.2 +VA-VB/1.4 = 0 VB+2/1.5 +...

Using excel, I tried to do a numerical analysis to get the same results as scheils equation. The problem is that the two concentration profiles start diverging at the end. The numerical analysis is offcourse based on time-step analysis. I have uploaded the excel file. Much Gratitude,

Homework Statement Problem and work attached. It is mostly diagrams so I have just uploaded the pictures. I think what I did to determine the transfer function was correct. I'm not quite sure how to do the last section of part (a) where I need to determine the dampening, static gain, and...

Homework Statement Sorry for the pictures, I'd normally write out the problem but it is mostly diagrams. Question and work attached. I am looking for help with part (a) right now, the transfer function I obtain is shown at the end of my work. Homework Equations Knowledge of Laplace transforms...

Homework Statement given the circuit shown, find V1. Homework EquationsThe Attempt at a Solution see image: am i right? Video says otherwise... I chose to use the superposition theorem here. help appreciated, regards, james.

hello, i have a question regarding the way we represent information on circuit diagrams. The first is to do with representing output voltages: is V out always simply representing the voltage of whatever lies between/trapped between those two horizontal lines? Also, i see a lot of diagrams...

Homework Statement Hello, I have to estimate the junction depth and layer thickness from the graph I am given. I know that when Phosphorus and boron are crossing, at this point is the Junction depth. What about the oxide layer grown, how would you estimate its thickness? For the second graph...

Hi, Is this Bode diagram tells that the system is stable? As I see it is, because of the φ>0. What doest it mean that the upper diagram has two zero-crossing?

Homework Statement A particle with mass M at rest decays into two particles with masses ma=0.15M and mb=0.65M . i) Discuss the relative directions and magnitudes of the momenta of these two particles in the centre of mass reference frame. Homework EquationsThe Attempt at a Solution What's the...

Hi folks, apologies if this is in the wrong forum. I'm a new undergrad physics student and I'm having trouble figuring out how to 'do' error analysis. (I had a quick look through some similar posts here & am still none the wiser.) I'll use my recent lab experiment on Resonance in a Tube as an...

Homework Statement The Attempt at a Solution [/B] At node B, ##i_s + 3 = i_2## ## 3 + 3 = i_2## ##i_2 = 6A## ##V_2 = i_2/R_2 = 3V## But, it seems that the answer is wrong. Using superposition method, the voltage is 4V Please tell me where I got wrong

Homework Statement Two infinitely grounded metal plates at y=0 and y=a are connected at x=b and x=-b by metal strips maintained at a constant potential V. Find the potential inside the rectangular pipe.Homework Equations Laplaces EquationThe Attempt at a Solution I posted a photo of what I've...

Homework Statement Homework EquationsThe Attempt at a Solution 1. 2. i) Use mesh analysis to solve for circulating currents I1 and I2. ii) What is the current dissipated by resistor R1? iii) What is the potential difference across resistor R3? 3 i) . Loop ABEFA...

Hi guys, my first question is:what i really need to understand real analysis? and the second is on the title:could some of you recommend a good book on real analysis? cause I've found some texts that are very difficult to understand some concepts...

Hi, I am trying to find the error propagated by calculating the sum of a set of mass flow rates collected over the same length of time. The sum of mass flow rates can be calculated with two approaches, since the collection time is the same for all of them. Approach (1) is adding up all of the...

Here's the problem: Let P(k) be a random draw of integers between 1 and k (inclusive). Assume you repeatedly apply P, starting at 10^1000. What's the expected number of repeated applications until you get 1? Why? What is your understanding of the following statement? Assume you repeatedly...

How one can analyse an image of a solid material obtained with an optical microscope ?

Hi, We have an axial fan in the lab that apparently vibrates badly ("wobbles") at certain frequencies. To find the resonance and the bad frequencies, I decided to do an ANSYS modal analysis. I am still pretty new to it, and have a few questions. 1) Regardless of how many modes I pick...

given: source voltage =120V voltage across 15 ohm resistor = Va there is a dependent source 2Va and a 30 ohm resistor. I tried applying KVL i.e 120-30I+2Va-Va=0 where Va=15I and got I=2.66A whereas my teacher told me that the answer is 8A. how is it so? Is it some basic knowledge that I have...

Hi Guys, I am self teaching myself analysis after a long period off. I have done the following proof but was hoping more experienced / adept mathematicians could look over it and see if it made sense. Homework Statement Question: Suppose D is a non empty set and that f: D → ℝ and g: D →ℝ. If...

Homework Statement I know it's not directly related to engineering, but its from an engineering economics course! Homework EquationsThe Attempt at a Solution Hello, I'm trying to solve this problem, and my first thought it to find the present value of each machine $$ PV =...

Let's say we have a free-source series RLC circuit. The differential equation that describes the behavior of the transient is given by Ri+L\frac{di}{dt}+V=0, where V is the potential difference across the capacitor. But I have trouble understanding the way this equation is developed. For...

Homework Statement Find Voc Homework EquationsThe Attempt at a Solution This is what I have: (VA-9)/5 +VA/5 + 1.8 = 0 VA=0 -1.8 + VB/(60+10) +(VB-9)/20 VB=35 What I'm confused about is why you combine the 60 ohm and 10 ohm resistors for the VB nodal equation, but not the 25 ohm and 10 ohm...

Hi, I have one spot remaining to take a pure math course, and I'm trying to decide between complex analysis and group theory. Although I've touched some of the basic of dealing with complex numbers in my physics/DE courses, they haven't gone in much depth into them beyond applications. On the...

I have to model a storage vessel in ansys and perform stress analysis for it. I have no idea about which element types I will need for the analysis. I have calculated the design dimensions for the vessel. I am a beginner at ansys and know only how to deal with simple structural and thermal...

Dear Physics Forum friends, my old friend recently gave me a book called "Advanced Calculus" by Loomis/Sternberg, published by the World Scientific. I had taken a look at that book, and it seems to be that the book treats the vector calculus, linear algebra, and some topics on the mathematical...

Homework Statement Homework Equations Thevenin theorem The Attempt at a Solution ##R_{60+180}=240## ##R_{80||240}=\frac{240*80}{240+80}=60## ##R_{total}=60+20=80## ##=\frac{480}{80000}=0.006A## How should I proceed?

Hi, I was just wondering how would you go about finding a harmonic function in complex analysis when given certain conditions such as I am z > 0 and is 1 when x > 0 and 0 when x < 0. Do you draw a diagram? Do you solve the laplace equation? How would you go about doing this? What if there...

Homework Statement Find the voltage in A,B,C,D when the circuit is grounded at point A Homework Equations ##V=IR## ##\sum_{i=1}^{n}I_n=0## ##\sum_{i=1}^{n}v_n=0## The Attempt at a Solution I have managed to divide the current according to KCL, but I am not sure how should I approach...

I have been browsing the web, and I notice that I could not find any websites that have real analysis text around. Yes, I understand that I should look for books written by professionals in the field, but I do not know which one I should buy. Do you know of some online resources to real analysis...

Homework Statement *Posted in the Screenshot* Homework Equations *Posted in the uploaded attachment* The Attempt at a Solution *Posted in the uploaded attachment*Hi all. Our lecturer gave us the question as part of an assignment but I'm not to sure if my approach and answer is correct. I...

I have completed a small project of ac circuit analysis on intel galileo in arduino. I want to make a GUI now. How should I proceed? I know C and a little C++.

I've been assigned the following problem for homework in my Electrical Engineering class: *Note, the duplicate v2 is supposed to be v3. But I keep getting v1 = 4.10V v2 = 4.81V v3 = -1.19V and i0 = 52.9mA Every simulator I've put this into says it's wrong, yet I've attempted solving it...

Hi I was wondering how you would account for mean stress (such as using with goodman equation) using von mises with miners rule due to variable loading Thank you

1. I ´m trying to do the dimensional analysis of the Delta Dirac in 3 Dimensions. [PLAIN]http://[url=http://postimg.org/image/oif09fcd5/] 3. This is my atempt [PLAIN]http://[url=http://postimg.org/image/4qavbtv4p/]

I should start by saying that, as a novice data analyst, I have very little experience with MRI physics, but I believe I understand the absolute fundamentals. Also, this post mostly concerns data analysis issues so might be better suited for some other signal processing forum, but I'm hoping...

Homework Statement I have to prove that RI = RSRP/(RS - RP) by circuit analysis. The Attempt at a Solution [/B] So I tried to create a system of equations to do this: For the first circuit using kirchhoffs rules: V-IA(RS + RI) = 0 [1] For the second circuit: V-IBRS - IPRP = 0...

Homework Statement Using nodal analisis we need obtain the differential equation 2. The attempt at a solution For I1 and take the point under C as reference, but i am stuck on it

I hope this post won't become too tedious. I've completed my undergrad studies in physics and if things go well i will begin my master's degree in April. The thing is, since my path to graduation has been peculiar (to say the least) I'm kinda weak in maths skills atm and need to improve. I'm...

I am working on a thesis, but new to programming. What is the best and easy to use program that I can use for the work: Measurement and analysis of elastic scattering of alpha–particle and light heavy ion scattering using nucleon-nucleon interaction

I forgot to formally introduce myself on this forum. I am VKnopp. I am 14 year old maths enthusiast with Asperger's Syndrome. I self-educated myself all the way up to Calculus III with a little bit of number theory, linear algebra, complex analysis and real analysis supplements. I am in the top...