To make the truck model scalable in 3 different axes, a top-down assembly approach using the WAVE geometry linker feature in NX was utilized to develop a skeleton model. This allowed sketch features to be referenced from the master assembly to multiple parts within subassemblies. As illustrated in the images below, the length, axle width, and height of the model can be adjusted from a 1X scale up to a 1.5X scale via 3 user defined parameters in the master assembly file. To make the model robust, extra focus was placed on making sure geometric features were properly constrained to the skeleton model.

In an effort to improve one of five assembly components, a topology optimization was conducted on the transmission crossmember to determine where material could be removed. Then, a finite element analysis was performed on an improved version of the transmission crossmember to test its strength. To accomplish this, a static load was applied to the bottom of the component to simulate deformation from getting stuck on large obstacles such as rocks. Finally, a kinematic analysis was conducted on the steering and suspension systems to visualize their motion and check for interference.