Mechanical engineering Definition and 553 Threads

Hello, I am a Mechanical Engineer a little out of practice on Heat transfer. I am trying to solve this problem. It must be solvable but i have yet to find right equations online. I have a multi Layer Cylinder made up of C350 marraging Steel,Zinc Alloy-12 , then 6061 Aluminum T6. All that is...

Summary:: From Physics to Mechanical Engineering Hi All, I am in search of some guidance to start my education/career in Mechanical Engineering. I have an undergraduate degree in Physic and would like to go for Master’s in Mechanical Engineering if possible. Does anyone have an experience...

Hello everyone, This year I'm planning to apply for the bachelor program of IPSP. Since my high school is not qualified by DAAD, I have to complete at least one year in any other university and apply through uni-assist. I'm already in my second undergraduate year of Mechanical Engineering and...

I calculated the value of kgf/cm^2 from given values. In the second table (Force exerted by the pneumatic cylinders) I see my value 5.6 exactly but how do I then read the table to get the diameter of the cylinder and then the rod? I then am stuck on how to calculate the total consumption...

I am attempting to calculate the force (in KgF) of a water pump + nozzle system. I have the pump curve (head vs. flow rate) for the pump, the diameter of the connection hose (2 inches) and the nozzle diameter (1 inch). The connection hose between the pump and nozzle is very short (approx 10 cm)...

If I have a catheter covered in a thin sheathe (think a cylinder, covered by a thin plastic film), how should I go about calculating the shear force it takes to unsheathe the catheter from the sheath (no torque here, just the catheter moving in and out)? I've thought about strain gauges (but...

I seem to be in a minority for thinking that mechanical engineering is more difficult than electrical engineering. Difficult for me, I mean. To me, mechanical engineering is more difficult largely because in mechanics your intuition and common sense are often trying to mislead you. With...

Summary: (undergrad student) What is something I can do this summer to develop my creative instinct in engineering? Hey everyone! I am currently an undergrad freshman studying mechanical engineering. I love the courses and I understand the scientific concepts, but I know that engineering is a...

Hi all, I'm a bit embarrassed but I'm extremely rusty with a lot of engineering principles. I've mainly been working in automation and controls within a manufacturing setting and have not done anything like this in ages. Anyways, I have a problem I need to solve and I need to determine the...

Hello guys, Long story short i am a senior mechanical engineering student (graduating next year). But i do not like my major, at first i did not matter to me what i choose or what i study. i did not know what i like and mechanical engineering seemed a good option to me in terms of good job...

Greetings everyone, UK user here, I'm currently studying for my HNC Mechanical Engineering. Been lurking in the background for a while - this website has definitely got me out of a few tight spots with assignments! Anyway, cheers guys and look forward to getting to know some of you.

How proficient in cad should someone who is applying for mechanical engineering internship be? I am teaching myself solidworks and i would like to have a benchmark to progress towards so when I began applying for a mechanical engineering internship in the near future i will feel prepared.

1. In my materials science's exam, I had the following question: What would be the maximum force F to cause failure in a block that has been drilled at two place? See following drawing: (Lame paint skills, I know..) 2. Homework Equations 1) D/W 2) σ = F/S The Attempt at a Solution 1)First...

Hello, for my current physics-project i am searching a mechanism: When there is to much friction on a rotating axle, it should reverse the direction and go on, till the mechanism starts all over again. I would love to solve this with pure mechanical parts, like springs gears etc... If you have...

Hello everyone. Currently, I am an undergraduate sophomore planning to study physics and in the process of transferring from community college to University. I am seeking advice on deciding between pursuing a mechanical engineering degree (BS) or a PhD in physics. My journey so far has taken...

My apologies if the question is in the wrong forum or section. Anyway, I'm a mechanical engineer with 2 years of work experience and have just recently moved to a new company. And just like in my previous job, fatigue seems to be kicking in. The job is basically a mountain of documentation...

Homework Statement Homework Equations Trigonometry equations, p=m/v, A = pi * d^2 / 4 The Attempt at a Solution i) mass calculated is 9.318kg at 150° from A ii) diameter = 0.235m I apologize for the messy working, I am just wondering if I have followed the correct procedure or not...

I am almost finished the final drafts of my dissertation, and now I am wondering what to do next. It seems that all jobs at universities want someone to "establish a thriving research program" or the like. That's not me, so a job at a university is out. I very much want to teach, but much...

Hi Everyone, I'm currently working toward a HNC in Mechanical Engineering and was wondering if anyone has any recommendations for books to help me out. Ideally what I would like is something that actually breaks the formulas down to their components and explains everything in plain English. If...

Hello guys, I received an admit to grad school for Mechanical Engineering, where my focus was initially Thermo-Fluids . I've also enquired about the Material Science department at the University(in the USA), and they are willing to let me transfer to the Material Science department provided I...

I am mechanical engineer fresher. I want to know what are job opportunities for fresher in mechanical engineer.

For my senior design project we are designing a vertical axis wind turbine (VAWT) and trying to increase efficiency by adding flexible parts to the blades. We are currently in the process of ordering a motor/generator where we can test our new model against the same model but with standard...

Homework Statement [/B] A 25-cm-diameter, 100-cm-high cylindrical container, (as shown), is partially filled with 75-cm-high liquid (density = 900 kg/m3). Determine the rotational speed at which the liquid will start spilling. Calculate the gauge pressure at the centre of the bottom of the tank...

Why can sometimes entropy remain constant with increase of temperature and vice versa?Entropy implies transfer of heat and heat must increase with temperature.I am unable to intuitively understand.

Homework Statement A steam heating system is used in winter season, The radiator of a steam heating system has a volume of 25 liters and is filled with superheated water vapor at 200 kPa and 200C. At this moment both the inlet and the exit valves to the radiator are closed. After a while it is...

This isn't a problem assignment per-say, but for a lab calculation. In my mechanics of material's class, we learned that the radius of Mohr's circle is the maximum strain, but now in my application lab-based class, the video is saying the radius is equal to the maximum strain divided by 2. So...

Hello, I am currently a senior in high school, I will be attending college in the fall of 2018 to pursue a career in Aerospace Engineering. I am a bit worried about a few things in this field. I am not sure if I need to get a degree in Civil Engineering or Mechanical Engineering, when I look on...

Hello Everyone, I am debating on going to college for mechanical engineering. I am currently 21 years old working as a technician for a Toyota dealership making 15 dollars an hour(averaging 80 hours a week). I went to school for automotive mechanics at a tech school(20k in student loans, still...

Hi, First, let me tell you about myself: 1.) I have a Bachelors degree in Engineering Physics with a mechanical focus. 2.) I have been working as a mechanical engineer for 3 years at 3 different places. 3.) My work mostly consists of product design, detailed drawings and working in a machine...

Hi, I've been studying fluid mechanics for my mech. engineering degree for the past few months. Unlike my other subjects (mechanical analysis, thermodynamics, automated systems, mechanical vibrations), I can't seem to grasp the problem-solving technique. The annoying thing is, I find the...

Good morning guys, So i want to make mechanism to cut log with diameter 5 cm and 120 cm length. So how i can calculate the force to cut this log perpendicular and paralel. What is tbe formula i can use? And how i can determine the saw thickness and rpm needed to cut this log? Thanks guys for...

Hi all, I'm doing a bit of material science research at my university. I'm running molecular dynamics simulation programs like Lammps and Amber as part of it, and I'm pretty new to the whole thing (just like I'm pretty new to this forum). I'd like to ask, has anyone here used Amber to find their...

Vibrations - Modelling system, equation of motion Hi, In the first question (question 4) in the attached file, how would you go about modelling the system and finding the equation of motion? All those masses are confusing me, I don't even know where to start. I don't know whether the angle...

I am currently about half done with my degree for a bs in Mechanical engineering from U of M. I transferred from a community college and I took all of my gen eds there like the English, history, econ, philosophy. I am in my second semester and am struggling with the physics and math mainly. I...

Hi, I study Applied Mechanics and I'm in the last year of my study. I try to find some interesting topic for my master's thesis that will be at least a little innovative. Topics offered by my university are unfortunately quite usual and "old-fashioned". And I want to do something a little bit...

Hello PF community! Quick introduction: I'm a fresh-out-university mechanical engineer working on a telescope altitude-azimuth mount hobby project. The mount will be designed using rotary platforms (powered by internal motors) to move the mount structure in the altitude and azimuth directions...

Hello, I'd like to know about the master's in mechanical engineering, what exactly sets it apart from the bachelor's? What makes it a more advanced level? Is it that students are instructed in more complex, sophisticated math, physics, engineering techniques? How many years in addition to the...

Hi guys, I am looking to get a degree in mechanical engineering and eventually work in the defence industry (I am in Australia but would like to move to the US eventually). The problem is that I am 25 and so would be going down this path late due to getting an unrelated degree previously (B.Com...

Sophomore Intended Mechanical Engineering here. I have a pretty nice schedule this time around, all STEM classes. Most are easy but I have Differential Equations, Physics II, and Statics which are the hard ones. I have a lot of free time to study over the next few weeks and wanted to try to...

I'm at the third year of my MechE course, and in those three years I've developed a keen interest in software/coding. I still like my degree, things like fluid dynamics/aerodynamics fascinate me, but more and more I see myself working with software and coding. One of the things that I like about...

I'm having fluid dynamics classes right now and I'm enjoying it very much (much more than my solid mechanics classes, by the way). Also, I do like programming and computer science, and CFD looks like a very interesting field. I'm developing a real interest for it. One question for those who are...

Hi all, I have in mind that an engineering project tends to be quite "integrated", as in, it envolves different engineers. So, for instance, in order to build an aircraft, you need not only a mechanical engineer, but also an EE, Materials, managers, etc etc. So lots of teamwork. However, I'd...

Hia! I was wondering about the benefits of different schools. I will be starting school at a four-year university to pursue a bachelor's in mechanical engineering, and am concerned about going into debt. I could instead go to community college and then transfer, but I'm worried that I will not...

I am a year one student who is going to promote to year 2 in September, and I am required to choose between Mechanical engineering or Aerospace engineer within these few days (i just received the urgent message...) I believe I am better in memorization and language skill than mathematics...

Hello, I'm an undergraduate student working to earn my Bachelor's in Mechanical Engineering. I was wondering whether other mechanical engineers could share their stories about their forst engineering job and how they got it. My main issue is, surprisingly, that I have absolutely no real life...

Hello, I have a fairly simple question but I guess I am having a hard time trying to understand it. I have a plastic connection of two different geometries (see attachment). When I hold end of the front portion (of the uniform diameter) and apply torque at the bigger cylinder geometry, there...

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...

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...

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...