What is Mechancal engineering: Definition and 118 Discussions

I'm a mechanical engineering from Universidad Tecnologica de Bolivar(Cartagena Colombia) . Right know studying Computational mechanic material(more specific: Isogeometric analysis). I'm really newbie in this and hope than some on your can help me because is just the beginning of something more...

Hello folks! I hope all of you are having a good day. Here is my question: How can I calculate the thrust needed by a marine propeller to move a body of about 120 kg? Also, as long we are talking about marine propeller, our propulsion is in water and not in air, so what about the rpm? Are they...

During the operation of a lathe, why does the work-piece revolve anticlockwise as seen from the tailstock?

I see that modern bicycles have curved front wheel forks , how does that affect stability ?

hi.. i want to import only the geometry defined in mechanical apdl into ansys workbench so that i want to have the freedom to change the geometry and meshing whenever i want to. thankyou

Hello everyone, I am a masters student 1/3 of the way through the mechanical engineering program at my school. At some point I have come to the realization that I am really not that mechanically inclined. It seems I have natural tendency towards circuit design and electronics. I really...

hey, i am a sophomore engineering student and i was looking to make a project this summer, for some extra credit, so i had in mind a device that measures force in certain situations, as an example if we have a machine ( with pulleys and machines) with 2 sides, one side is where the force is...

The forces acting on the glider are the gravitational force, the lift force and the drag (air friction). The drag () and lift force () are a function of the angle that the wings have with the gliding direction. =122 with: =0.1+3∙10−32 =122 with: =0.2+0.1− 3∙10−32 In the above equations, is in...

Natural convection always occurs opposite of gravity due to buoyancy; but I am confused as ice is solid so how could possibly convection even contribute to the heat transfer. I doubt about air movements nearby block that may contribute to greater heat transfer rate in case of hot block placed...

I took the TSI in January this year. I scored ok in the English part, and I'm confused on the math part. Here is my math score from the TSI paper: TSI Mathematic Placement: 350 MATH 1314, 1324, 1332, 1342 Enroll in Math 1314, College Algebra. You also qualify for Math 1324, 1332, 1342. I'm...

As a undergrad in Mechanical Engineering, I have a great interest in electronics. I have circuits and Arduino for a hobby, and I'm learning microcontroller programming by myself. When I got into college, I was torn between electrical and mechanical engineering, but ended up choosing the later...

Homework Statement Homework Equations sum of forces in x and Y = 0 sum of the moments at a point = 0 Ffr = normal force * friction coefficient The Attempt at a Solution Im just trying to make a start, I am struggling to wrap my head around the basics with this question. Do you guys think...

Hello, i am a junior mechanical engineering student and i was given the task of designing (on paper) a gearbox. I chose to design a worm gear single speed reduction gearbox. I know the basics of what composes it which are the worm, worm gear, input and output shaft bearings and the housing the...

What is the heat capacity values of diesel in liquid and vapour state?

Homework Statement If w = 74 kN/m , determine the absolute maximum bending stress in the beam in MPa. Homework Equations I'm not too sure how to go about my calculations. Please help! The Attempt at a Solution I = [(1/12)*(200*256^3)] - [(1/12)*(192*250^3)] = 29.62*10^6 F = 74*24*1000? [/B]

Hello, I am currently designing a lightweight waterproof winch system using off the shelf electrical or hand winches. My problem is that most electric winches that are waterproof are too heavy (design weight limit ~10lbs) and have a much higher force rating than needed (design max force ~500...

Mentor note: moved to homework forum later, therefore no template. When doing a rigid body relative motion (accel) problem using vector analysis, how do I know when it's appropriate to substitute sin/cos values vs when to use just the numbers given as the velocity?

How can I self-learn mechanical engineering? Some background: My dad has been in the business of Ball bearing for last 20 years. Whenever some smart-ass guy asks him any question he gives out learned answers(20 years of experience does teach people something). But apparently my dad doesn't...