DEPARTMENT OF MECHANICAL ENGINEERING

Types of Mechanical Forces A force exerted on a body can cause a change in either the shape or the motion of the body. The unit of force in SI system is the newton (N) and CGS system is dyne. No solid body is perfectly rigid and when forces are applied to it, changes in dimensions occur. Such changes are not always perceptible to the human eye since they are negligible. For example, the span of a bridge will sag under the weight of a vehicle and a spanner will bend slightly when tightening a nut. Civil engineers and designers need to appreciate the effects of forces on materials, together with the mechanical properties of materials. Three main types of mechanical forces can act on a body. They are: Tensile force Compressive force and Shear force 1. Tensile force Tensile force that tends to stretch a material, as shown in Figure 1 below. For example, Rubber bands, when stretched, are in tension. The rope or cable of a crane carrying a load is in tension. When a nut is tightened, a bolt ...

  Digital Twin Technology in Mechanical Engineering Digital Twin Technology is the creation of a virtual replica of a physical object, machine, process, or system . The virtual model is continuously updated using real-time data from sensors, allowing engineers to monitor, analyze, and optimize the performance of the physical asset. How It Works A digital twin consists of four main components: Physical Asset – The real machine, equipment, or system. Sensors – Collect data such as temperature, pressure, vibration, speed, and load. Communication Network – Transfers sensor data using technologies like IoT, Wi-Fi, or 5G. Digital Model – A computer-based simulation that mirrors the physical asset and updates in real time. Flow: Physical Machine ↓ Sensors ↓ IoT / Cloud Network ↓ Digital Twin Model ↓ Analysis & Prediction ↓ Maintenance / Optimization Applications 1. Predictive Maintenance Detects faults before they cause ...

Statistics Data What Is Statistics? Statistics is the branch of applied mathematics concerned with collecting, organising, presenting, analysing, and interpreting numerical facts so that sound engineering decisions can be made from them. On a shop floor, this is not academic — it's how a batch of turned shafts gets accepted or rejected, how a machine's wear pattern is tracked, and how a process is proven "in control." Working definition Statistics is the science of drawing reliable conclusions about a whole population (e.g. every shaft produced this month) from a manageable sample (e.g. 10 shafts measured on the lathe). The five-stage process Every statistical study — from a tolerance study to a failure analysis — moves through the same five stages. 01 Collection measure shafts 02 Organisation sort & tabulate 03 Presentation tables & charts 04 Analysis mean, median, SD 05 Interpretation accept / reject Fig 1.1 — The five stages of a statistical study, from ...

  Must-Have Software Skills for Mechanical Engineers A Complete Guide with Applications, Features, Career Scope, and Images Introduction Mechanical engineering has transformed from traditional drafting and manufacturing into a technology-driven profession. Today's mechanical engineers are expected to be proficient in various engineering software for designing, analyzing, manufacturing, automation, and project management. Modern industries such as Automobile, Aerospace, Robotics, Manufacturing, Oil & Gas, Renewable Energy, and Industrial Automation require engineers with strong software skills. 1. Computer-Aided Design (CAD) 6 Purpose CAD software is used for 2D Drafting 3D Modeling Product Design Assembly Design Engineering Drawings Sheet Metal Design Popular CAD Software Software Industry SolidWorks Manufacturing AutoCAD General Engineering CATIA Aerospace & Automotive Creo Product Design Siemens NX Aerospace Fusion 360 Startups & Education Skills to Learn Sketching P...