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Hi all, Trying to chase down design calculations for stress in a 'band' joining two pipe lengths together. Stress in the weld. Stress in the pipe (because its going to be in torsion as the load tries to pull the welds into the pipe) The pipes are butted up to each other. The band is lap...

Hello all - Can anyone recommend software for the following - Custom articulated vehicles Suspension design parameters Rollover (SRT/stability) design Solid or liquid cargo Regards

A lot of posts, ifs, ahhhhs and opinions but no posts that seem to be able to point to an equation and go 'heres the equation'. Theres the good ole 2T/Dd Throwing some figures at it (2 x 10,000) / (0.5x0.006) = 6.67 MPa as a udl on say 135 deg angle of wrap and a 6mm rope squash width F = PA =...

Hi all, I'm currently designing a heavy duty pole. The pole has to have a pin in it and I've been asked to detail a boss for the hole/pin that goes through it. Does anyone have any pointers or could put me in the direction of a text book that works out how to select the correct boss size...

Can anyone recommend pipe and pump software. Currently when I model systems for water and slurry I use the company excel templates to add up all the friction losses and it spits out a head loss then I size the pump but this is not good enough for large complex systems. I'm looking for...

Hi Everyone, Just a quick one - can anyone recommend guides or standards on crash protection requirements or design requirements. International or Australian. I've design a repair platform for tunnel work and the client has requested a 'crash bar' to be added that will stop the basket from...

Hi all, Can anyone direct me in the direction of a good, open source, robot arm kit. I'm trying to put a robot in a box/dome. The box/dome has holes in it. I want to robot to spot the holes or at least get pointed in the general direction of the holes then reach out and and plug them. Or...

As the subject says, I'm looking for a device which can measure the impact force for me of a load that is connected to a chain that falls. I've seen a few out there and was wondering which one you guys recommend. The load will be in the rance of 5-20 tons. I've been coming across impact...

Hi all, Does anyone know if theres a standard or Australian standard relating to the approval of something if you build it experimentally. I remember it had something to do with the number of units you produce which determined the factors you apply. I cant for the life of me remember where I...

Hi, Can anyone point me in the direction of EN25 steels fatigue limit/endurance limit with a reference Thanks in advance

Hi all, I'm looking into upgrading a design to carbon fibre or fibre glass from the ones we have that are currently made from steel. Its a simple inspection hatch and associated access parts. a couple of rungs. some tread plates. Where would I be able to find information on how to design with...

Hi, can anyone point me in the direction of any information on the extended use of winding/hoisting ropes. In particular the creep experienced as the rope gets older due to the load (permanent deformation) Any books or standards or research articles where some information on this topic might...

Hi all, Are there any American Standards for fuel hose reeling applications. I have a fuel transfer hose that's about 50m long to be stored on a fuel tanker. I usually design winders for mining applications. Someone saw a design, was impressed and wants one for a ship. Are there any...

Hi all, its been a few years since I've touched sizing motors, shafts gearbox etc Can someone point me in the direction of a good book on this with well developed examples starting from first principals. Hoists, drum winders, drum crush? etc I have a drum, a load, a shaft, a gearbox, a motor...

Hi all, I have a compressed air pipeline in use on locomotive the client has expressed concern over the fatigue/vibration of the line. What are some good modeling programs for this? I guess there would be the constant vibration from the locomotive chassis due to the motor. The vibration of...

Hi all, Can anyone steer me in the direction of where to find corrosion resistance data for 4140 steel against ammonia nitrate attack. A table, chart or book would be great. Thanks in advance