Best Rated threads in ⚙ Mechanical Engineeringshow all threads
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Effectiveness of Diameter Reduction in Hydraulic Cylinder Blind End
Hydraulics is not my specialty, so please excuse me if I mis-use terminology, etc. We have a design with a hydraulic cylinder that is required only for emergencies; it is very important for it to...
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19 years ago
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Finding Direction Cosines with ANSYS
Hi All: I need to find the local normals in a rather complicated FEA mesh (shell elements). I talked to the guys at ANSYS and they said I need to write a macro to do this. Anyone do this recently? The...
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19 years ago
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Repairing Oertling TP 40 laboratory balance
Hi, I recently acquired a faulty Oertling TP 40 laboratory balance that was being thrown out by my university. It's an 800g capacity mechanical balance which reads down to 0.01g. The problem is that...
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19 years ago
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Titanium in ball bearings?
Hi, I am a recent graduate of mech eng. (2 and a bit years) and an very experienced inline-skater. Occassionally these two worlds colide (engineering and skating) and people look to me for...
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19 years ago
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Homebrew NC Mill
My office opens onto a machine shop. I was just now chatting up the machinist, and idly musing on the workings of the transport mech or whatever it's called - it's got motors to drive the bed in X and...
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20 years ago
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Most rigid epoxy?
If this is an inappropriate forum for this question, please forgive and recommend a beter one. I need an epoxy that "gives" as little as possible, such that the maximum energy is transmitted with as...
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20 years ago
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Liquid piston Stirling engine
Quite a while ago (18 years [as part of my degree]) we were trying to get a liquid piston Stirling engine (no solid moving parts) working .The idea was to have it powered by solar radiation and to run...
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20 years ago
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What kind of plastic is polymer clay?
Hi all, Can anyone advise me as to the type of plastic that constitutes polymer clay (the stuff that kids use for crafts projects)? Is there an industrial version of this stuff, and is it used in any...
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20 years ago
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power hammer problem
i have a electrically operated power works on fast and loose pully of driving belt is controlled by is not in work for many years also its settings are it is not giving the same power to hammer. the...
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20 years ago
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williams and james (engineers) ltd
hello there, does anyone know if the company "williams and james (engineers) ltd" still exist in the UK, or if they have changed their company name ? they are makers of air compressors and related...
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20 years ago
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Re: 300% Modulus
Perhaps they are talking about elongation? http://performancesimulations.com/scnshot4.htm performancesimulations.com
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20 years ago
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wireframe,surface or solid and finite element analysis.
following is the text from sdrc ideas tutorial "I-DEAS uses a solid representation of part it's a complete representation, solid geometry supports any type of design and analysis application that...
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19 years ago
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Hoover Dam engineering question.
Hello, I wondered with all this talk of terrorism and Al-Qaeda, if hypothetically Hoover Dam were to be totally demolished, would Phoenix Arizona be in any danger? Would the immense volume of water...
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19 years ago
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Ball Screw Noise - Normal??
We're using a ball screw, purchased from Thompson, in a horizontally positioned linear translation stage. It spans 88" with a 1" screw Diameter. I believe the lead is 0.5". The ball screw is...
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19 years ago
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ABAQUS Problem
I am trying to assign the geometric coordinates to nodes in ABAQUS using parameter, but as son as analysis starts, it terminates with error: ***ERROR: INVALID FLOAT VALUE LINE IMAGE: 1, 0.*1, 0.*1 How...
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15 years ago
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propane flow through aperture
I'd like to figure out how much propane flows through the tip in a burner I built, in order to determine how much heat it delivers. The tip I'm using now is 0.8" long with an inside diameter of .030"...
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15 years ago
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FxT2 Material
Anyone ever heard of this material? I presume it's some metal alloy - the PHB poked his head into my office and said, "Find out what you can about this material." I've found _one_ reference to it on...
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17 years ago
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SOLVER module: general error
HI I HAVE DOUT ABOUT THE SOLVER ERROR MASSEGE FROM ANSYS WORKBENCH. PLEASE TELL ME HOW TO DEAL WITH THE MESHING WHEN I HAVE 400 SMALL PARTS IN THE ASSEMBLY. WHILE DOING THE THERMAL ANALYSIS IT GIVE...
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17 years ago
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Maximum Yield stress for Standard Hardened Steel dowel pins
Hello everyone, I would like to ask if anyone could please help me with the following situation. I am using a standard hardened steel "pull out" dowel pin from as a bearing shaft. I need to know the...
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18 years ago
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What is ansys' shear stress sign convention?
Dear all, I tried to plot the shear stress of a cantilever beam, which is loaded at one free end by a downward force (-y direction). Then I tried to plot the shear stress of the left half of the beam,...
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19 years ago
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