Design programs like AutoCAD facilitate ME & CE engineers do their jobs by serving to them produce preliminary styles and spot flaws before production, saving time, and resources. it is not necessary. however it is very helpful for engineering science for understanding the mechanical styles.
Ansys, Inc. is an American company based in Canonsburg, Pennsylvania. It develops and markets multiphysics engineering simulation software for product design, testing and operation and offers its products and services to customers worldwide.
CATIA is a multi-platform software suite for computer-aided design, computer-aided manufacturing, computer-aided engineering, PLM and 3D, developed by the French company Dassault Systèmes.
SolidWorks is a solid modeling computer-aided design and computer-aided engineering computer program published by Dassault Systèms, that runs primarily on Microsoft Windows.