From the definition of 3D transformation, we know that it is used to manipulate the shape or position of a 3D object in virtual space. It is used heavily in the modeling and simulation industry to create  3D sculptures of a real-life project it makes the process easier for the designer to create and recreate the model over and over again if needed in know time and way less time than it takes to create in real life. In the process of recreation 3D transformations are used to increase or decrease the size or to change the position of a component some of the 3D modeling tools are Blender and Maya3D that all use 3D transformations under the hood

Now, come to simulation ti also use 3D transformations since the simulation creates a future view or situation of a model in a set time and set environment.To set the real-life view and the future view of the model it is rendered in a virtual space and this takes 3D transformations since the model is run and developed in virtual 3D space