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Mechanical Engineering

6638 threads, 44573 comments (13 Viewing)
 

Pressure Pipe Great Opening Reinforcement

07/02/2009 by Guest
Hi everyone, Thank you foy your attention, This is the question: I have to design a By Pass conical derivation from a 3700mm diameter p...
Views: 8, Comments: 1
Last comment 07/02/2009 by XMech
 

welding method

07/02/2009 by Guest
Any method for fillet welding of hole from bottom side (overhead) accurately ?
Views: 5, Comments: 0
 

Stepper motor or ecentric bored sprocket

07/02/2009 by sandeep lokhande
Dear all, I have one low cost work.I want to make my conveyor run like stepper motor run. But I cant fixed stepper motor because its low cost wor...
Views: 14, Comments: 0
 

Cold Storage Insulation Panel

07/02/2009 by kumskip
We plan to build a cold storage 8 meters high. Should we use insulation panels with cam locks or panels with tongue and grooves. The cold room will ha...
Views: 6, Comments: 0
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Section Blogs

Workbench Creations

75 blog entries, 871 comments (1 Viewing)

Del's Archery Adventures - Crossbow Refurb (Part 2)

06/10/2009 by Del the cat
Here's a shot of the "false string" clamped onto the limbs of the crossbow that I built 25 years ago. This false string enabled the crossbow that I...
Pathfinder Tags: archery arrows crossbows Del the cat weapons
Views: 332, Comments: 23
Last comment 06/18/2009 by Andy Germany

Del’s Archery Adventures - Crossbow Refurb (Part 1)

06/03/2009 by Del the cat
I made this crossbow about 25 years ago, and it's been hanging in my garage ever since. There are a couple of details which I wanted to improve, and...
Pathfinder Tags: archery arrows crossbows Del the cat weapons
Views: 584, Comments: 62
Last comment 06/06/2009 by Garthh
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Aerospace Technology

9 blog entries, 77 comments (0 Viewing)

Street-Legal Airplanes?

06/29/2009 Initial flight tests are finished for the first "flying car." Billed as an airplane you can drive, as opposed to a car you can fly, the Terrafugia Tra...
Views: 170, Comments: 19
Last comment 07/02/2009 by chrisg288

An All-Ceramic Jet Engine?

05/05/2009 Highly-stable ceramic cores are used to produce investment-cast jet engine turbine blades; low-pressure third-stage blades can even be made from ceram...
Views: 508, Comments: 6
Last comment 05/19/2009 by ahuha
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Valve Technology

30 blog entries, 334 comments (0 Viewing)

Got a Bad Manager?

06/27/2009 What makes a less than ideal manager in the valve business? Does a bad manager make you clean the Muffin Machine? Does the manager blame you because t...
Views: 207, Comments: 18
Last comment 07/01/2009 by wcfloyd
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Motion Control Components

40 blog entries, 245 comments (0 Viewing)

Do We Need Cash to Go Green?

06/24/2009 Japan recently began offering its citizens "eco-points" for buying new electronics products and tax breaks for eco cars; the resulting sales are helpi...
Views: 109, Comments: 2
Last comment 06/25/2009 by Epke

Who Owns the Idea?

06/02/2009 Congress is finalizing a bill that awards credit based on patent application date rather than on actual invention date. Bill proponents and lobbyists...
Views: 307, Comments: 14
Last comment 06/06/2009 by Floram
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Pump Technology

31 blog entries, 302 comments (0 Viewing)

Pump Up the Power

06/22/2009 Spain's experience-where 2.2 jobs were lost for every "green job" created — makes us wonder: What will alternative energy do to the pump ind...
Views: 101, Comments: 0

Where's Pump Paradise?

05/23/2009 Where's the best place in the whole world for a pump person to work? Ideally, it would be a place with plentiful pump jobs, a nice climate, clean envi...
Views: 386, Comments: 4
Last comment 06/24/2009 by Milo
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Pneumatics Blog

57 blog entries, 246 comments (0 Viewing)

Get Out the Flyswatter

06/21/2009 Unobtrusive; pervasive; lethal. Swarms of bug-like drones will soon infest the war-fighting environment. What are the chances that Multi Air Vehicles,...
Views: 242, Comments: 11
Last comment 06/23/2009 by Mikerho
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Mechanical Power Transmission

29 blog entries, 235 comments (0 Viewing)

Fix It Utill It Breaks!

06/21/2009 And some follow that action plan. However, when it comes to maintaining mechanical power transmissions, it generally is best to follow the axiom that...
Views: 204, Comments: 10
Last comment 06/23/2009 by MIKE L.

Engineering Changes

05/25/2009 Recently, trade associations and magazines have written about what industry leaders see as the greatest changes to the engineering profession over the...
Views: 227, Comments: 0
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Motors Blog

30 blog entries, 399 comments (0 Viewing)

Do High-Efficiency Motors Save Energy?

06/17/2009 Motor efficiency is not a single number; it depends on how the motor is used. Most efficiencies are measured at 75% output. What if the motor is used...
Views: 220, Comments: 3
Last comment 06/18/2009 by garth

Do High Efficiency (HE) Motors Save Energy?

05/19/2009 With standard electric motor efficiencies running at 85 — 90% it's hard to see what a few extra percentage points will mean in the long run for...
Views: 343, Comments: 4
Last comment 05/21/2009 by phoenix911
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Hydraulics Blog

22 blog entries, 131 comments (0 Viewing)

The Chinese (Hydraulic) Puzzle

06/13/2009 The Chinese market for hydraulics components has not slowed down. This is good news for international vendors because most precision hydraulics still...
Views: 211, Comments: 2
Last comment 07/01/2009 by vmgarcia

Do-it-yourself Hydraulics?

05/17/2009 A farm operation successfully built its own spinach harvester out of a John Deere cotton picker. Would your organization consider building or modifyin...
Views: 405, Comments: 6
Last comment 06/25/2009 by BudT
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Drives Blog

28 blog entries, 371 comments (0 Viewing)

Engineers: Be They Ever so Humble

06/08/2009 Have you noticed that when a rocket launches successfully and achieves its mission — sending men to the moon or a robot to Mars — it's hai...
Views: 218, Comments: 18
Last comment 06/16/2009 by Guest
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Mechanical Components Blog

70 blog entries, 447 comments (0 Viewing)

Put Up Your Nukes

06/02/2009 Wind and solar technologies for energy have won lots of positive press, despite the serious technical challenges that will keep green energy from supp...
Views: 150, Comments: 5
Last comment 06/11/2009 by Ed Weldon

Sustainability: Let the Market Choose

05/23/2009 The push for Green has waned recently, reacting to the dipping global economy. Is sustainability in product design down for the count? Consumers consi...
Views: 181, Comments: 1
Last comment 05/23/2009 by Mark Stockman
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Other Blog Entries of Interest

RTLS - who needs it?

07/21/2008 posted in Embedded Now Blog
by mavella
Apparently the US Army does. How on earth do you lose 4 helicopter engines worth $13M? Real-time location systems only work if you're actually...
Views: 145, Comments: 4
Last comment 11/21/2008 by EnviroMan

Springs and Dashpots: Response Time of Mechanical Systems and Organizations

02/28/2008 posted in Eudaimonia, too
by MillMatt
Springs and Dashpots. Over and over again in my formal engineering education I recall modeling mechanical systems with springs and dashpots. As much a...
Pathfinder Tags: dashpots Disney lumped parameter systems springs star tours ...
Views: 1431, Comments: 0

Ideals

02/07/2008 posted in Eudaimonia, too
by MillMatt
My grandfather was a Heating and Ventilation Engineer who worked on building projects in the first half of the 1900's. He was a prominent member of th...
Pathfinder Tags: air conditioning ASHRAE ASHVE Carrier Engineering Ideals ...
Views: 402, Comments: 4
Last comment 02/08/2008 by noha

Yes, that was real

02/06/2008 posted in Embedded Now Blog
by mavella
Super Bowl commercials often blur the lines between fantasy and reality, but we got an interesting press release from our friends at NTS about the F...
Views: 398, Comments: 3
Last comment 02/08/2008 by Nigh

Current "State of the Art" Electric Powered Vehicles

05/02/2007 posted in Electric Vehicles
by seshkanuri
Please discuss the current "State of the Art" Electric Vehicles in respect of the following parameters: 1) Speed of the vehicle 2) Ra...
Pathfinder Tags: batterycar ebike electric motion electric vehicle electric-car ...
Views: 2398, Comments: 44
Last comment 04/05/2009 by ronwagn