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...
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...
Apologies for the repost but I wasn't getting much response in my Seal forum..
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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...
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...
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...
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...
Hi,
A friend is trying to work out the pressure in a sea water flotation system.
What would the pressure be when a 1m^3 bag of air at atmospheric pressure has a 1000Kg weight applied to the top?
General temperature would be approx 20 DegC.
Could you show me the workings of your calculations...
Morning all,
I have a choice of 3 lubrication tanks that I can scavenge from a redundant project for use on my own.
However I don't know which one will be most suitable.
How would I calculate the correct tank volume to suit the needs of the lubrication system I am using it with I have the...
Hi all and thanks in advance,
I have an application whereby one piece of the assembly (A Load Cell) has an internal thread of M20x1.5, due to space constraights I need to screw this directly into an actuator with an external M16x1.5 thread on the plunger.
I have requested if the Load Cell can...
Hi,
I am working on a fairly old system designed in the 1970's.
One of the drives is a GEC 3500 HP motor with the drawing reference (W4058844).
Does anyone know who I can talk to get hold of these drawings or even it its possible to get these still?
Thanks
Steve
Hi guys,
I'm trying to work out the size hole I will need to put into a small oil jet to lubricate a bearing correctly.
I know the pressure of the flow and the flow rate needed.
Is there a "flow through an orifice" type formula I can use to figure this out?
[Metric units would be awesome if...
Hi all,
I have little experience with Shrink Fits and was looking for advice on a particular application.
I have a shaft and gear arrangement, shaft and gear nominal dia = 76mm
The arrangement at its maximum operating limits is going to be transmitting 3700 Nm at 4500 rpm with no axial force...
Hi,
I have little experience in buying brakes and was wondering if you guyts could suggest some well known ad trusted manufacturers for industrial brakes.
For an idea of the range of brake I need. The shaft I need to stop will be going at 3000 rpm and 1184 Nm.
Also what are the properties I...
Hi,
I have been using the Multi and fast-instantation to duplicate standard parts. This works fine in the x, y and z direction.
I was wondering if there is a way to use this method axially, i.e. duplicating bolts and nuts around a shaft interface.
Thanks
Steve
