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Hi guys, I'm working on an aerospace heat exchanger which is currently using 5154 Aluminium Alloy but we're getting significant creep issues. Does anyone have any idea on alternative material suggestions? The material will have to have good weldability and be able to withstand high...

Hello all, I'm currently trying to calibrate a torquemeter using BS7882:2008 and creating a spreadsheet which calculates the various uncertainties and errors in the calibration. I'm using the worked example (B1) within the standard as a guide and have come up against 2 problems that I'm hoping...

Thanks MintJulep, I will get hold of the design spec and try to build the tests around that. dgallup, the gearboxes will be used by our customer eventually but the test rig itself is a piece of in-house kit. It was designed by a "test rig design" company, so its quite likely they have followed...

Hey Guys, I've been tasked with the commissioning/qualification of a new closed loop gearbox test rig. The previous commissioning I did wasn't very well planned and the tests were almost plucked out of the air making the eventual report writing quite difficult. This time round I was...

Hi guysm, thanks for the advice. Shaft diameter is 70mm and 100mm (2 different locations), pressure delta is minimal. Temperatures are likely to be up to 120 DegC. Fluid in use will most likely be ISO46 type oil. Minimal leakage is required, although I appreciate the seal will need to be wet...

I have been reading in the SKF mannual for thier lip type seals and it seems that they allow axial movement, providing the surface finish and quality of the shaft is the same along the travel distance.

Apologies for the repost but I wasn't getting much response in my Seal forum.. -------------- Hey all, I'm wondering if any of you have experience with anything that can seal a shaft travelling at around 3000rpm but also must allow +/-10mm axial shaft movement? Originally I was going to use a...

Hey all, I'm wondering if any of you have experience with anything that can seal a shaft travelling at around 3000rpm but also must allow +/-10mm axial shaft movement? Originally I was going to use a basic radial lip seal but I'm not sure if the lip will just bend back on its self when the...

Thanks for the advice, for the relatively low cost I've decided to buy some replacement probes from RS in the correct size. Cheers Steve

Hi, I have an application where I am using K Type Thermocouple probes to measure bearing temperatures in a gearbox, the probes are fed down straight bores into the gearbox to the bearings. However.. I was a bit of a numpty, the depth I required was 142mm but once I include the glands the...

Hi, I have some previous experience of using Matlab and Simulink but I have never used it in force, I foresee an application in my workplace (creating dynamic models of systems with multiple gearboxes) whereby I will need to be quite proficient in these tools. Can anyone with experience...

Yup, Thanks Dr Phil! I appreciate I could add the "UK pariticpation in.." part, I appreciate everything here discussed can be worldwise issues, just trying to keep focus on my original question which limits its to challenges for the UK. Thanks for the ITER link, this is very interesting, could...

In the UK and in my company I always keep hearing about a shortage of Engineers and skills, are you saying the global market is saturated with engineers currently to the point where its one of the biggest challenges? Also, when I mentioned planetary protection I was meaning things such like...

To kick things off my thoughts were: - Energy Demands - Growing and improving our high tech and space related industries - Large EU/International collaborative engineering projects - Plantetary Protection - Cyber Defense - Sustaining the growth of UK manufacturing.

Hey all, This is a bit of a follow on from a previous post I made last week, I have an interview coming up and I have been asked to consider the following question: "What are the top 6 challenges (technical, commercial, ethical, regulatory, etc..) facing the UK engineering profession in the...

Hi Guys, I have been asked to prepare a presentation 5-10 slides with the topic: "What are the core engineering skills?". I was wondering if I could get your opinions as this forum obviously represents a wide range of engineering fields and disiplines and I may pick up on some areas that I'm...

Very sorry about the lack of information, I thought It would have been a lot simpler. The assembly is supported by two plumber bearings the location of which are shown as the shaded purple areas on the new attachment. The central mass does include two thrust bearings. The assembly can twist but...

Please check the attachement as the image fails to load. Thanks Steve

Hi, I have a problem that I think had a fairly straight forward answer but I can't think of the correct forumla to calculate the value. I have a two 10kN load cells in the configuration show below, the assembly is symetrical: How do I calculate the total force that can be applied on the...

Hi, Does anyone know where I can purchase a precision ground flat bar with dimensions of: Width = 24mm Height = >24mm Length = 1.5 - 2m The bar is being used for the alignment of two large frames and needs to be precision ground. Can I get this as a standard tooling item or will this need to...