Svara Software – Mechanical and Structural Engineering Analysis & Design Software.Professional Shunt Calibration Calculator – Strainmatics guides the user through the shunt calibration using a step wise approach.Designerswest is a technical publisher / distributor of practical engineering/scientific calculation software and reference handbooks for students, designers, engineers, architects and educators.Features Piping, Mechanical, HVAC and Structural. Mech-Q Engineering Software is a suite of engineering routines that run in AutoCAD or IntelliCAD.Physical Modeling and Simulation Software – MapleSim is a drag-and-drop modeling tool allowing you to produce simulation models of multi-domain systems.RecurDyn : according to official site it is specially designed for simulation of kinematics and dynamics problems.