I need help in the design of oil tanker trailer?

Having produced designs for transporting fuels by road transport in the past, designing the oil tanker trailer is not a complicated process. The first steps are the same as required to design any other machine.

Start by working through a specification, you need to decide the capacity of fuel volume you are going to transport, from this you can work out the weight of the load and other preliminary details. In New Zealand there is a document " The Tank Wagon Code " which covers the rules and regulations that apply to fuel tankers that will be used on NZ roads, there will be local regulations you need to read through that will apply in your part of the world. Next work out the component parts you are going to use, wheels, axles, brakes and other parts. once you have these sorted, if fortunate, you will be able to find models to download, otherwise you will need to at least get dimension sheets to incorporate these into your design. The rest is to think about how the finished tanker will be made in the workshop and produce a model that will give the information required to make it.

As lwarie said, check the standards for fuel transport. There are regulations about materials used and sway testing. Especially for fuel tankers there are lots of imposed standards about venting, filling, purging, etc.

To counteract sway you need a lot of baffles lenghtwise and some sideways. Also keep in mind some tankers have a clever suspension that can tilt the tanker in a corner.

Also a famous error lead to a rethinking of tankers on wheels, such as the tank itself is not suited to withstand the bending effect. The famous error was a large railway tank suspended at the ends on train wheels. The tank itself was the structure. So it bent lots of times in the middle and due to fatigue at one point it just split in two in the middle.

Design rails to support the tanker undernetath. The rails (ladder chassy) support the load on the axle/suspension and the hitch point.

Mehran

I have attached a pdf file that outlines how I would start off to design a fuel transport tanker