Mechanical Definition and 1000 Threads

I would like to discuss here some points from the article Martin Swaczyna Several examples of nonholonomic mechanical systems Communications in Mathematics, Vol. 19 (2011), No. 1, 27--56 This article is available at https://eudml.org/doc/196963 Let us open page 37: This is a classical problem...

Hello, I tried looking this up a lot and just could not find it. For four bar linkage, Klein's construction is used to find velocity and acceleration of piston and connecting rod. Here is a link for the procedure of the same...

Hello, I have metrology in my 4 semester in Bachelor's of Engineering in Mechanical Engineering. However, the books that we get (Engineering Metrology, R.K Jain,) give only a brief principle of how the instruments work. I want to further my study of this subject with an intention to design...

Homework Statement A rock with a mass of 0.2 kg is dropped from a height of 20 m. At what velocity does the rock strike the ground?Homework Equations KE= 1/2mv^2 PE=mgh The Attempt at a Solution 0.2x9.81x20=1/2mv^2. 39.24=.1(v^2) 392.4=v^2 v=19.8 m/s First time doing one of these problems...

I am a high school senior caught between these two fields. they both seem very exciting and I am not sure which would be better suited for my interests. In high school, my favorite subjects have been Physics, Chemistry, and Computer Science. I am interested in working to develop: -more...

For example, How does one compare 100 g's for 6 milliseconds to 45 g's for 11 milliseconds. These are two different shock scenarios with different magnitudes and times, so how can I compare them? If I have something that is shock rated at 100 g's for 6 ms does this imply that it will withstand...

Would you explain what "mechanical expansion or compression of a material" is? It makes no sense to me I only know thermal expansion or compression. https://www.google.tl/patents/US5004946 Thank you.

I'm an international student and I'm going to attend a U.S. college this fall, and in order to decide which college I should pick, I have to make my decision whether or not I would like to major in engineering because the college that I want to attend doesn't have engineering, while the other...

I want to obtain a mechanical engineering degree and work in a respective field in USA. But I will be looking for ME jobs as a naturalized US citizen (I am from Europe, but will soon become US citizen). I heard that it would be harder for me to find a job as any kind of engineer because I...

I'm 19 and I have a passion for cars. I'm thinking about pursuing a mechanical engineering degree & possibly creating a company in the future. There's one problem though; I didn't take algebra 2 or any maths after that (I had consumer math in hs). Is the math in mechanical engineering advanced...

1. The problem A very simple question on a quiz given to me states that, "A 63 kg diver is standing on a diving board waiting to commence her dive. The diving board has compressed 0.08 m. Determine the elastic potential energy of the diver." 2. The attempt at a solution I thought this question...

Hi, is it logicial to get a masters in mechanical engineering after a bachelor of nuclear engineering ? is that going to give more options when it comes to applying for jobs ? expanding opportunities ?

I'm now taking classes on mechanical vibrations and fluid dynamics, and those are two fields that are very interesting to me. I've always liked the subject of aerodynamics, but now I'm really liking to study mechanical vibrations, very interesting field of study. I'm looking for some specialty...

Hello guys, I am doing some basic design work and can't remember how offset torques work. I am doing the sum of the torques should be equal to 0 in order to find the tipping point around either of the wheels. My problem is with the 1000N applied at to top taking the pivot point around the...

hello everyone I am a year one engineering student and soon I need to choose my major, and I am still struggling mechanical or civil engineering. Background of me: compared to my engineering colleagues, my memorization, reporting skills (indeed i like oral or written presentation :) ) and...

HI I am a bit early for a 16years old and already think about it maybe but , my dream is to go in the space , which type of engineer goes in space? And can i start from a mechanical engineer to a aerospace engineer ?

I'm a 21 year old college student studying mechanical engineering. I currently live in South Carolina and I'm looking at other states to move to after graduation. I was wondering what are some good states/cities to go to for mechanical engineering?

Hello! I'm a Mechanical Engineering major considering a minor in Applied Physics; however, there are so many choices and I like all of them. I was hoping someone could give me some feedback. Perhaps, what physics courses are most relevant for a Mechanical Engineer. In my university, New Jersey...

Homework Statement In my lab, we are studying the efficiency of a simple DC motor. In order to do this, we related the initial potential energy of the capacitor to the final potential energy of a mass (which remained constant for all three capacitors) that the motor lifted. I was instructed...

I am a first-year Mechanical Engineering major at Cal Poly, and I need to interview a Mechanical Engineer for my Technical Writing class. If you have a few minutes and could answer these five questions, I would greatly appreciate it! What are common genres in the field of mechanical...

Homework Statement Homework Equations The right hand section (A) has an incident and reflected wave $$y_1=Ae^{i(kx+\omega t)} +A'e^{i(-kx+\omega t)} $$ The middle section (B) has a transmission reflected wave $$y_2=Be^{i(k_2x+\omega t)} +B'e^{i(-k_2x+\omega t)}$$ Section (C) just has the...

Hi, I am looking into a braking system which can limit the rotational speed of a platform; the assembly consists of a fixed vertical shaft and a rotating outer tube (seated with bearings). The platform diameter is >5 times larger than the tube. I have looked into the typical band brake...

One of classes needs me to interview an engineer with a degree of my same major (mechanical engr), preferably with 7+ years of experience in the field (we can lie about that, but deadlines are approaching and I've struck out everywhere), AND A BUSINESS CARD (used as proof to my professor that...

Hi Great Engineers, Need you help. I am required to calculate drag load on sticker to ensure it is not peeling off in operation. The vehicle may moves as fast as 220 km/hr with rectangular sticker size of 30 cm x 40 cm, thickness 0.0635 mm on its body. Wind direction is parallel to 40 cm length...

Is there a definition for "reversible process" that applies to mechanical systems (such as a block sliding down a frictionless inclined plane) that is distinct from the definition of "reversible process" in thermodynamics? If we apply the thermodynamic definition of "reversible process" to...

Homework Statement A body of mass "m" is let go from on top of a surface A, where it slides down to B(without friction). From that point on, it displaces itself on an horizontal surface 5 meters away from B, where it stops at C. Being "m" a mass in kg "h" in meters and g = 10 m/s^2 The value...

Hello everyone, I am in my first year at University, and I have to choose what discipline to enter. I am passionate about designing, testing, and implementing various ways to solve problems, and I found I can do this in both disciplines just in different ways. From previous job experience, I...

So I was talking to one of my friends who is a huge programmer, and he said that you don't even need a computer science degree to work in software. He said that companies would rather teach a mechanical engineer how to program, than a computer science grad how to problem solve, and that out of...

People spend so much time drooling over the millions or even billions made by software tycoons and their sometimes very crappy software, that we may forget about the tangible accomplishments of mechanical engineers. Here is a beautiful example. Do you have more...

Where can I learn some basic mechanical engineering, I am thinking of applying for a course on ME and I wanted to know what I am getting into, is there a online course that you guys recommend?. I have a some physics knowledge with basic dynamics but nothing differential. and maths up to basic...

Hey mechanical engineers, I am a biomedical engineer, I have designed a pharmaceutical dispensing apparatus that is currently powered on mechanical timers I have found online. Does anyone know where I could find a 6 hour mechanical timer I could fit in a standard pill bottle?

Is it correct to state that a progressive wave, originates when a simple harmonic motion is imparted continuously to adjacent particles from one direction to another moving with a velocity v. Using this idea, substituting (t - x/v) instead of t is the simple harmonic motion function...

Homework Statement There is a cyllinder with radius 0.5 m fixed on the wall. We put a 6 metres long thin rod with mass 0.3 kg on it, which does not slip. I would like to calculate the oscillating time. It is a part of a clock, so the oscillating time is probably 1 or 2 seconds, but I got...

I am a first year Mechanical Engineering Major I am wondering if there are any good computer program that I could use to simulate the physics and properties of potential designs The other day I saw something about Da Vinci's famous cryptex and this peaked my interest into designing and building...

I cannot understand the mechanical systems in the picture. In the picture a) how can f is scattered equally to M, K1, K2, B1 and B2 ? Where do you know this? How can two systems be equivalent of each other? In the picture (b) if f is applied, how can the force on M is Ma, a is acceleration...

I am a high school senior debating between these two majors. In high school, I enjoyed both Mechanics and E&M very much so its really tough for me to decide which of the two engineering fields I'll like more. Whichever field I pick, I am also planning to minor or double in Physics and Computer...

I have a long question in my assignment with many part answers and I would just like to know if I have answered them correctly as I have spend a lot of time on it. can anyone help? My Question is: The component shown in Fig 1 is made from a material with the following properties and is...

Hi everyone. I'm a mechanical engineer and have spent a fair amount of time generating black and white line drawings to go in papers, documents, etc. What is your favorite software to create drawings like you might see in textbook homework problems? A couple of simple examples given below. I...

Hello Dears I am Mechanical Engineering Technology and I am thinking to get Master degree in Nuclear Engineering/ Nuclear Mechanical Engineering. So, is it possible to do that and in which university? Thank you

Hello all, I require your expertise on building an approach or a framework to identify and measure the jerk or vibration in a mechanical system with a slider. What I have is a slider (S) with a vertical link (L1) attached to it and another horizontal link (L2) attached at the tip of the link...

Hi guys I'm making a project about jet engine. I need to write 10 pages of the mechanical part of a jet engine. I already did it for physics. What can i talk about. I need formules en stuff in the 10 pages Ty for the help guys! Max

Which is better? To study dynamics through physics or through mechanical engineering? What is the difference really? A book from MIT OCW classical mechanics 2 : Florian, Scheck. Mechanics: From Newton’s Laws to Deterministic Chaos. 3rd ed. https://www.amazon.com/dp/3540655581/?tag=pfamazon01-20...

Hello PF friends, My name is Visakhan,and I'm presently pursuing my BE in Mechanical Engineering in India. 3/4 way through the course now,But I feel unsatisfied with my grasp of mathematics and programming. I scored marks and passed the examinations,but i don't get that feeling of satisfaction...

Hello everyone, I want to give some brief background info about myself before asking; I am a junior/senior undergraduate living in Southern California studying mechanical engineering, and leaning towards the thermo/fluids side of mechanical engineering. However, when it comes to "my true...

Homework Statement A bead is sliding on a surface. At point A it is 80 cm above the ground, at point B it has just hit the ground and at point C it is 50 cm above the ground. At point A it has a speed of 200 m/s, so what will its speed be at point B and C? Homework Equations W=F.d Kinetic...

Can you help me what can be the science contribution in mechanical engineering in the Research field robotics and automation?

Can anyone help me? I have a question with 3 part answers on my Mechanical Principles assignment. I believe I have answered question part 'a' and 'b' but I have been stuck on question part 'c' for days! So the question is: Q5. The simply supported beam shown in FIG 4 is 5meters long with a...

Hi guys! I study Electrical Engineering and, don't-know-why, I don't know anything about state space. Now I'm working on a project where I have a non-linear system. The first task in the project is to separate the linear and the non-linear part of this system, and then obtain the state space...

I have been struggling to make this decision for the past year. I am a straight A 2nd/3rd year mechanical engineering student and I really can't decide between engineering and physics. My whole life I have always wondered about the universe, and why things work the way they do. I am way more...

Homework Statement A 1.40 kg block slides with a speed of 0.885 m/s on a frictionless horizontal surface until it encounters a spring with a force constant of 637 N/m . The block comes to rest after compressing the spring 4.15 cm. Part A Find the spring potential energy, U, the kinetic energy...