Search results for query: *

Hello All, I am calculating a split muff coupling for a round shaft fitted with 3 bolts on each side. I need to calculate the pressure on the shaft surface in order to calculate the maximum torque to be transmitted (with a fricton coeffcient). I know the bolt load, but I am not sure about the...

Hi biginch, Thanks for your comment but I have already done that. I expect higher torque due to the boundary layer. I guess this cannot be calculated like a normal surface in free flow.

I forgot to say that there is sea water in between.

Yes, I am sorry . I forgot to mention that there is sea water in between. Adrian

Hello All, I am trying to calculate the friction (torque) between two concentric cylinders. Inside one is roating at 750 rpm, diameter is 826 mm and diametrical clearance is 4 mm. Outside cylinder is static. Length 98 mm. I guess it should be quite large but couldn't find any reference. Maybe...

Hello All, I am trying to calculate the friction (torque) between two concentric cylinders. Inside one is roating at 750 rpm, diameter is 826 mm and diametrical clearance is 4 mm. Outside cylinder is static. Length 98 mm. I guess it should be quite large but couldn't find any reference...

Thanks John, I will to integrate our BCT parts inside the NX5. Adrián

Hello, Can somebody please describe which standard parts are included in the library now included in NX5? I mean bolts, nuts, etc.. (DIN,ISO,...). Somebody told me it is not very usefull and you still need an external library (like BCT). Thanks in advance,

nkwheelguy, I deleted the folders, but nothing changed.

Hi, Thanks for all your helpful posts. nkwheelguy: I have tried to delete the folder and files inside print_submitt folder but no success. I cannot print pdf (Acrobat 6 prof.)neither in a couple of konica machines nor OKI. Next step would be trying with the software kukelyk propose but I don't...

We use NX4. I have configured the plotters but when trying to plot a drawing, it sends a cgm file to the printers, the printer receive that data in the queue but nothing happens. Same occurs with the acrobat pdf printer. (I treated this pdf printer as any other printer and maybe it is not...

Dear Friends, I am trying to prepare a spreadsheet for calculating heat generation in a bearing consisting of a steel shaft running over white metal bearings with oil (hydrodynamic bearings). So far I have been investigating the heat generation, sommerfeld number and so on, using the formulas...

Hi, I have a problem with the mass propperties shown in the part list inside the drafting. I follow the tutorial, create the part list, where the different parts are shown, I add a columnn where the <W$=@$MASS> atribute is included. The problem is that besides in the design window, the...

hi plmexchange, My question deals with ISO 286. If I have a shaft dimension 45h9, in the drawing I would show it as 45h9(0 -0,062) (positive above and negative below). the values in brackets would be completed automatically by the software, once I define the main value as h9 or whatever...

Hello, Is estrange, since Solidworks has very user friendly feature to be used in 2D drawings, not so complicated as Nx PMI. The tolerances feature for 2D drawings in NX is too simple and doesn't include ISO symbol nor automated calculation of tolerance(PMI does it). Regards,

Hello, I am new user and I don't know if there is a way of including tolerances in the drawings without having added such information previously in the PMI during the design. What I mean is something simple like in solidworks where you indicate, for instance, if a shaft is h7 (or whatever) and...

Yes, thanks for the link arto, in fact there is a rule there. After checking, it seems to be what I had expected, means must be provided for insulation between steel piping and aluminum ship's hull. I suppose that pipe hangers would be rubber coated and valves attached to bulkheads would have...

Dear Friends, I'm looking for information on design criterias for piping onboard a all aluminum ship. What are the material requirements an for pipe on engine room and auxilary systems', I didn't see specific requirements from Class Society. Thanks,

Hi cbrn, The CFD we are using is taylored for propeller and cavitaiton analysis so is very fast and give the data in very useful formats, a CFD code like the one yu mention might be usefull for long term research instead or for analysing a particular case. Anyhow many thanks for thew comment...

Dear Sirs, I would like to know exactly (if any)the relationship among the fuel rack index, exhaust gas temp and scavenge air temperature on a 4 stroke marine diesel engine suitable for estimating the power delivered if there is no data from test bench. Regards,