What are some alternatives?
When comparing ANSYS Workbench and SolidWorks, you can also consider the following products
COMSOL Multiphysics - COMSOL is the developer of COMSOL Multiphysics software, an interactive environment for modeling and simulating scientific and engineering problems.
SketchUp - 3D for Everyone
COSMOSWorks - Simulation and Multiphysiscs
FreeCAD - An open-source parametric 3D modeler
FEATool Multiphysics - FEATool Multiphysics is a fully integrated Finite Element FEM CAE simulation toolbox for Matlab.
LibreCAD - An open source 2D CAD application for Windows, Apple and Linux.