Recent content by Davieslad

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    Axial Piston Pumps Equation Help

    Right, I am in the process of designing an axial piston pump. I have obtained the following formula from a textbook for power output. unfortunately i don't know what units the formula requires, is anyone able to confirm what they are? Also, if anyone knows of a good resource for pump design...
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    How Can I Resolve Mating Issues in Solidworks for an Axial Piston Pump Design?

    I have now sorted it out - it didnt like the sub assemblys being imported into the main assembly, and as such wouldn't mate as i required. I have also since discovered that for some reason i needed to arrange the mates in a very precise order - there all mated in now and looking tidy - only...
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    How Can I Resolve Mating Issues in Solidworks for an Axial Piston Pump Design?

    Ok, I've sorted the initial problem, however no it won't let me adjust the angle of the swashplate. Anyone have any ideas? Cheers Ed
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    How Can I Resolve Mating Issues in Solidworks for an Axial Piston Pump Design?

    Hi, Im designing an axial piston pump in solidworks, prior to analysis. Basically I am having difficulty in getting the slipper pads from the top of the pistons to mate to the swashplate, so that when rotated the pump produces a pumping action. I have the slipper pads connected to the...
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    Optimizing O-Ring Groove Dimensions for Seals: Tips and Considerations

    That is bloody marvellous! Its about 100 time better than i need, and i never would have found it by myself! Thank you very much! Ed
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    Optimizing O-Ring Groove Dimensions for Seals: Tips and Considerations

    Hi, I need to find the dimensions for O ring grooves for different size o rings, for static, dynamic and face sealing. Does anyone have a web link for these for BS and/or ISO metric dimensions. All the ones i can find are subscription ones. Many thanks Ed
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    Maximum Stress on a wheel in motion

    Homework Statement I have a vehicle traveling at 180 ms^-1, weighing 2000kg. I need to calculate the maximum stress that the wheel is likely to sustain if it hits a solid, immovable object at the above speed, so that i can successfully design a wheel which won't go beyond its yield strength...
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    Simulink Help (i would imagine its a pretty simple solution)

    as it turn out, it was! i used the embedded MATLAB function to write a simple if statement... so simple whaen you know how..
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    Simulink Help (i would imagine its a pretty simple solution)

    I have a system, setup to simulate the braking of a vehicle. the vehicle decelerates from 400 mph to zero using a parachute, and conventional brakes the parachute deploys at 400mph to prevent the brakes from overheating they need to be used at a lower velocity at present i have a...
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    Modelling Vehicle Deceleration in Simulink: Adding Drag Force Considerations

    Ok, please ignore this - i figured out how to do it...
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    Is a Smart Car Safe in a Crash? Designing an Experiment to Test Its Safety

    no worries - you might also want to know that in an old episode of fifth gear (a uk tv program on channel five) they were looking at car safety and crashed a smart car into a wall at 50mph... might be worth having a trawl for.. hth ed
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    Modelling Vehicle Deceleration in Simulink: Adding Drag Force Considerations

    Homework Statement right, I am modelling the deceleration of a vehicle in simulink the vehicle uses wheel brakes, and a parachute to decellerate from Vmax to zero I have constructed a model which models the constant force of the brakes to decelerate the vehicle to stop I need to...
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    Formula for deceleration, using a parachute and wheel brakes

    Hi All, Thanks for all your help so far, the following is where i have got to working with it - would someone be able to check my derivation of this please - my maths skills are somewhat rusty, so i may well have made a mistake somewhere. Cheers Ed
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    Calculating Heat Loss from Brake Discs Using Forced Convection

    I already have the brake force (or at least a spreadsheet where i will have the accurate brake force once all values are inputted) and the heat generated by the brakes (again the same as the brake force) per second, and in total over the run. It is simply the amount of heat that the airflow...
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    Is a Smart Car Safe in a Crash? Designing an Experiment to Test Its Safety

    well, the smart car has an internal safety cage, which would be my main point of focus, as the crumple zones in this car are negligible calculate the bending stress in the safety cage, and from that you can model how much the cage will deform under impact, and therefore how much of an...
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