First create a vehicle combination with a cargo.
(Instructions: Create a vehicle combination )
Then click on the Axle loads tab.
Get the axle loads of the semi-tractor
You can see the single axle loads of the tractor unit below the tractor unit.
(Further information: Calculate axle loads for semi-tractors)
Example: 13.636 kg load on the fifth wheel, resulting in 4.168 kg on the first axle and 9.534 kg on axles 2 and 3.
Get the other axle loads
HeavyGoods also calculates axle loads for semi-trailers, trailers, dollies, followers and self propelled vehicles.
The loads are displayed below the vehicle, indicating the load on the whole axle line (i.e. if you have several pendular axles per axle line, the individual load of each single pendular axle typically is significantly lower).
Curly brackets group axles which belong to the same hydraulic support circuit and therefore have the same load on each axle line.
In the vehicle details at the bottom of the page you can also see further data, such as the empty weight, the maximum fifth-wheel load and the front and rear pressures:
Detailed report
For a detailed list of all individual axle line loads and pressures click on the Report button.
It also includes many vehicle measures which are relevant for legal permits.
Tipp: To display extended measures also use the tabs Vehicle measures and Cargo measures and switch between Side view an Top view.
Configuring the support circuits and support triangle
For instructions have a look at Configuring the support circuits and support triangle.
Add additional weights
You can add as many additional weights to your trailer or semi-trailer as you need.
Example: A 500 kg box of chains sitting on the gooseneck.
Lift axles
You can click on an axle to lift it. You can also use the button Liftable axles to quickly lift or lower certain axles.
Telescope the vehicle
Drag the rear of the vehicle with your mouse to extend it. Alternatively click on Telescoping and choose the desired telescope step. If you have several tubes, you can choose the telescoping per tube (given that this feature is supported for the according vehicle).
Adjust the hydraulic gooseneck
Some goosenecks have different settings for fifth-wheel load/axle load ratios. These can be used to place more or less load on the fifth wheel plate or the front support circle of the semi-trailer.
To do this, click on the button Fifth wheel axle load ratio and select one of the possible options.
Getting the bending moments
Follow the instructions at Calculate bending moments.
Tilt stability and overload limit
If you use a qualified record of a vehicle with pendular axles, HeavyGoods calculates how stable it is when tilted under load. It also displays the tilting limit in degrees and percentages. If the road loses 10 cm in height over a lateral distance of 1 meter, this corresponds to a lateral road inclination of 10% (approx. 5.7°). A road inclination of 100% corresponds to 45°.
Important: The calculated tipping limit refers to the inclination of the entire vehicle and not the road surface. (The vehicle can compensate for road inclinations hydraulically up to a certain degree).
HeavyGoods also calculates whether each individual axle is within its load limit. The inclination of the vehicle is also taken into account here (see note above), which can lead to an overload of individual axles, especially on the lateral support circles of the vehicle, even if the load of the entire axle line is still within the limit.
Example: From an inclination of approx. 25°, the vehicle would tip over - and also be overloaded.
Important note - if not all values are calculated
If certain values are not displayed (e.g. axle loads, tilting limit, overload limit and bending moments), HeavyGoods has not checked / calculated these values.
Reasons for not displaying the values may be:
The functions are not covered by your HeavyGoods license.
Not all vehicles in your vehicle combination and the load have all the relevant data, e.g. the load requires defined support points for calculating the bending moments.
Some extended functions are currently only available for certain vehicle types or the vehicles of certain vehicle manufacturers.
Make sure that the corresponding values (e.g. axle loads, tipping limit, overload limit and bending moments) are within the technical, legal and other limits!
