Mechanical Engineering Forum

Join the expert discussion on mechanical engineering topics. This can include topics like the development of machines. Mechatronics, Robotics, Engines, Drafting etc.

Threads

Newman motor with coils not spinning on 9V battery

  • elitewarr
  • · Replies 5 ·
Replies
5

Heat Dissipated By a Freezer's Condensing Unit

  • vta10
  • · Replies 1 ·
Replies
1

Reducing Water Velocity Without Reducing Flow: Finding the Right Valve

  • VooDoo
  • · Replies 3 ·
Replies
3

How much torque does a person apply to bicycle pedals?

  • ahad_yekta
  • · Replies 13 ·
Replies
13

Calculating the push force on a vehicle

  • eddie123
  • · Replies 1 ·
Replies
1

How to find tensile and compression stress from a 3D stress state

  • Zachary Liu
  • · Replies 16 ·
Replies
16

Inertia change through a gearbox question

  • mech_rocks
  • · Replies 2 ·
Replies
2

Is Mechanical Engineering a Suitable Career for Non-Creative Individuals?

  • mystiq_e
  • · Replies 2 ·
Replies
2

UCLA or UMN for graduate energy study/research

  • cram242
  • · Replies 10 ·
Replies
10

Engineering reference sites for reports and assignments

  • mikex24
  • · Replies 1 ·
Replies
1

Starting Hydraulics Recommendations?

  • microbiek
  • · Replies 5 ·
Replies
5

Stress at c'sink holes of enclosed box with internal pressure

  • patrickv
  • · Replies 1 ·
Replies
1

What support force N is needed for a sandwiched bar pulled at 100 lbs?

  • Seismicmaniac
  • · Replies 3 ·
Replies
3

Emergency Thermal Expansion question(Mech. Materials)

  • theman408
  • · Replies 2 ·
Replies
2
Replies
3

What the electric motor for bend pipe

  • dv7_sun
  • · Replies 1 ·
Replies
1

Fluid Statics Center Of Pressure

  • febbie22
  • · Replies 1 ·
Replies
1
Replies
1

Pressure difference problem from attachment

  • vishal badal
  • · Replies 1 ·
Replies
1

Doing a compressed air survey on your plant

  • Scott Vidicik
  • · Replies 5 ·
Replies
5

Generators for Home Natural Gas: Find Yours Today

  • jdeere724
  • · Replies 9 ·
Replies
9

Need Formula or Data for Ballistic Bore Friction

  • turbo1889
  • · Replies 9 ·
Replies
9

Work energy principle vs Newtons law

  • mussayab
  • · Replies 1 ·
Replies
1

Lowering Unnecessary Throw Out In Production

  • Andreii
  • · Replies 1 ·
Replies
1

Can HHO Water4Gas Really Improve Car Mileage?

  • emagray
  • · Replies 10 ·
Replies
10

Is a High Horsepower, Lightweight Diesel Engine Possible for a Race Truck?

  • Frostfire
  • · Replies 9 ·
Replies
9

Why Does the Stream Function Calculation Differ in Batchelor's Example?

  • tiredryan
  • · Replies 1 ·
Replies
1

Locking a Spur Gear: Easy Ways to Secure Gears

  • CKRiley
  • · Replies 1 ·
Replies
1

Do Mechanical Engineers Use AutoCAD?

  • mecestudent
  • · Replies 11 ·
Replies
11

What is the Crushing Force of a Concrete Crusher?

  • nofx1981
  • · Replies 4 ·
Replies
4

What is the formula for calculating angular velocity of a rotating bar?

  • Progesco
  • · Replies 1 ·
Replies
1

Simple mechanisms to measure joules output?

  • dbooksta
  • · Replies 8 ·
Replies
8

Gas Pressure Acting On Different Objects

  • cdey20
  • · Replies 2 ·
Replies
2

Web service/person that solves engineering/maths r

  • sreddead
  • · Replies 5 ·
Replies
5

Extreme Precision: How Devices Move Just Thousands of an Inch

  • taupune
  • · Replies 9 ·
Replies
9

Forces applied to secure points

  • jingojamie
  • · Replies 2 ·
Replies
2

Is the a good describtion of what sound is?

  • leodpenrose
  • · Replies 1 ·
Replies
1

Horizontal Gear with Upward Pointing Teeth: Myth or Reality?

  • TheCollector
  • · Replies 4 ·
Replies
4

What is the necessity of a shim in Piston design?

  • Haroon1
  • · Replies 7 ·
Replies
7

Spring force needed for 5-inch heave on 3-DOF flight simulator platform

  • binto100
  • · Replies 3 ·
Replies
3

Heat transfer inside a cylinder with flowing water

  • peet_dk
  • · Replies 1 ·
Replies
1

Advantages of Trunnion Pipe Supports

  • Ask1122
  • · Replies 3 ·
Replies
3

Diesel internal combustion engine converted to hydrogen?

  • bennis
  • · Replies 4 ·
Replies
4

How can i speed up a 20:1 worm gear

  • TheCollector
  • · Replies 3 ·
Replies
3

How can I build a two-wheeled robot that follows an IR emitter?

  • T.O.E Dream
  • · Replies 2 ·
Replies
2

Geothermal heat pump water heater

  • GaryS
  • · Replies 3 ·
Replies
3
Replies
2

Information on grippers and end effectors

  • iii
  • · Replies 2 ·
Replies
2

Fracture Toughness Test: Understanding ASTM E399-09 vs BS 7448 Methods

  • alexisonsmith
  • · Replies 2 ·
Replies
2

Diesel Stop Solenoids: Finding the Right Fit

  • Josh111
  • · Replies 1 ·
Replies
1

Finite Element Analysis of Collision Impact in MD Patran/Nastran

  • abkdt41
  • · Replies 3 ·
Replies
3

How does an air conditioner start and function in an unsteady state?

  • Clausius2
  • · Replies 19 ·
Replies
19

Vapor Comression Refrigeration cycle

  • TheDon
  • · Replies 17 ·
Replies
17

What is the best robotics kit for a beginner science major?

  • Animastryfe
  • · Replies 2 ·
Replies
2

Calculate 90 Degree Pipe Elbow Centroid with Excel or MathCAD

  • Don Watson
  • · Replies 2 ·
Replies
2

First Post: Looking for an electric lever.

  • jlovett01
  • · Replies 10 ·
Replies
10

Understanding a stress equation

  • EGill
  • · Replies 4 ·
Replies
4

Compressed air aftercooler questions

  • MThornton
  • · Replies 13 ·
Replies
13

Replace Bent Tongue on Utility Trailer - Wall Thickness Suggestions

  • Dussy69
  • · Replies 3 ·
Replies
3
Replies
2

What causes sudden unintended car acceleration?

  • Infiniti_m35
  • · Replies 2 ·
Replies
2

Fixed Rotation Times for Heated/Cooled Substrates

  • Seraph042
  • · Replies 1 ·
Replies
1

Questions for a Robotic Engineer

  • Scott_Lemon
  • · Replies 4 ·
Replies
4

Design a planar bistable mechanism to launch a ping pong ball

  • Jps
  • · Replies 1 ·
Replies
1

Combustion and Compressible Flow

  • Jones1987
  • · Replies 5 ·
Replies
5

Refrigeration - Fouling in the sizing evaporator and condenser

  • alexisonsmith
  • · Replies 1 ·
Replies
1

Unique Features of Mixed Refrigerants - Alexisonsmith

  • alexisonsmith
  • · Replies 1 ·
Replies
1

What is the failure mode for a vertical pole with guy ropes?

  • SJB
  • · Replies 7 ·
Replies
7

12 VDC 4-Way Reversing Valve Source

  • droc22
  • · Replies 2 ·
Replies
2

Where can I find a thermo properties table for r-144a refrigerant?

  • R_Schuette
  • · Replies 11 ·
Replies
11

Fluid mechanics boundary layer solution

  • uby
  • · Replies 5 ·
Replies
5

Design an O-Ring Groove w/ AS568A Series/Chart

  • vishugupta
  • · Replies 2 ·
Replies
2

Critical Buckling Load: Bend or Buckle?

  • JayPee
  • · Replies 9 ·
Replies
9

How to calculate CFM from pipe diameter and PSI

  • shellback
  • · Replies 5 ·
Replies
5

STRUCTURE-FLUID interaction (and not the contrary) with Comsol

  • sunset451
  • · Replies 2 ·
Replies
2

Linear Elastic Analysis w/ Abaqus CAE: Truss Structure Assumptions

  • g0ggs123
  • · Replies 1 ·
Replies
1

What are these acrylic tools and equipment used for?

  • optics.tech
  • · Replies 1 ·
Replies
1

Orifice design for pressure drop

  • pjo
  • · Replies 6 ·
Replies
6

Launch Eggs Off Balcony To Target 12M away

  • jamey_270
  • · Replies 7 ·
Replies
7

Change in velocity of air due to fan

  • danield
  • · Replies 11 ·
Replies
11

Designing Spur Gear System for Robot Wheel Base

  • travisr34
  • · Replies 4 ·
Replies
4

Linear Dynamic Seal (water-tight)

  • Satchmo
  • · Replies 2 ·
Replies
2

Rate of stress versus velocity gradient

  • maros522
  • · Replies 2 ·
Replies
2

How to Increase RPM without decreasing Torque?

  • kashyap
  • · Replies 12 ·
Replies
12

Can I design a mechanical seal?

  • maxx_payne
  • · Replies 2 ·
Replies
2

Infinite of finite life for a shaft

  • 2slowtogofast
  • · Replies 5 ·
Replies
5

Calculating Shear Rate in Rotating Cylinder

  • JJ21
  • · Replies 1 ·
Replies
1

How do I start building a Rube Goldberg machine?

  • simplemachine
  • · Replies 7 ·
Replies
7

Parts, componets, and things that do stuff

  • maxsthekat
  • · Replies 3 ·
Replies
3

Physical Kick Drive - Does It Exist?

  • ketamynx
  • · Replies 7 ·
Replies
7

FRC 2010: FIRST Robotics Kickoff - Join the Robotics Revolution!

  • Chi Meson
  • · Replies 38 ·
2
Replies
38

How does a 4x4 Keypad work with PIC 16f877A?

  • kloong
  • · Replies 1 ·
Replies
1

Finding Moment About Any Point: Fixed Moment Value?

  • 385sk117
  • · Replies 3 ·
Replies
3

Help with COMSOL modeling

  • chirag.joshi
  • · Replies 5 ·
Replies
5

How to obtain the magnetic force?

  • mmytu
  • · Replies 9 ·
Replies
9

Water Tank Design: Pressure Calculation

  • Su Solberg
  • · Replies 5 ·
Replies
5

Local stress on thin cylindrical shell

  • peet_dk
  • · Replies 1 ·
Replies
1

What Are the Largest Gear Ratios Possible for a Steam Turbine System?

  • SimonBuk
  • · Replies 4 ·
Replies
4

Flow Through a Pipe: Modelica Model with Unequal Inlet-Outlet Areas

  • polezero
  • · Replies 3 ·
Replies
3