Design of Machine Elements | WBSCTVESD DIPLOMA | ME | SEMESTER 6TH | SHORT ANSWER QUESTION | 2024

⚙️ Welcome to our comprehensive solution series for Design of Machine Elements! ⚙️

In this video, we break down the 2024 Previous Year Short Answer Questions (SAQs) - Group B specifically curated for WBSCTVESD Diploma students in Mechanical Engineering (Semester 6). This step-by-step solved paper guide acts as a perfect last-minute preparation booster to help you score maximum marks in your upcoming board exams.

Whether you are looking to clear core design concepts or looking for step-by-step numerical calculation methods, this video has got you covered!

🚀 What You Will Learn in This Video:

🔹 Core Design Concepts: Understanding Stress Concentration, Creep Curves, and Endurance Limit ($S-N$ Curve).

🔹 Numerical Solutions: Step-by-step calculations for Knuckle Joints, Steel Spindles, and Flange Couplings.

🔹 Advanced Elements: Design of Overhung Pulleys, Welded Joints under static/fatigue loads, and Bearing code classifications (e.g., Bearing No. 305).

🔹 Cost Estimation: Simple breakdown of industrial estimating, calculating Prime Cost, Factory Cost, and Lathe Centre weight profiles.

⏱️ Key Time Moments (Timestamps)
00:00 - Welcome & Introduction to WBSCTVESD ME 6th Sem00:18 - Group B: Exam Pattern & Short Answer Questions Overview00:24 - Question 1: Stress Concentration, Creep Curve & Endurance Limit ($S-N$ Curve)
01:54 - Question 2: Knuckle Joint Design (Solid Rod Failure, Pin Shear, Single Eye Tension)
03:20 - Question 3: Steel Spindle Torsional Deflection & Shear Stress Calculation
04:40 - Question 4: Cast Iron Protective Flange Coupling Design & Hub Dimensions
06:36 - Question 5: Overhung Pulley Design, Belt Tension Ratio & Elliptical Arm Size
09:01 - Question 6: Welded Joint Design under Static & Fatigue Loading
10:08 - Question 7: Antifriction Bearing Classification & Bearing No. 305 Decoded
11:34 - Question 8: Machine Cost Estimation (Prime Cost, Factory Cost, Profit/Loss Analysis)
14:00 - Question 9: Estimation of Lathe Centre Weight & Material Costing Methodology
15:03 - Outro: Like, Comment, Share & Subscribe!

📚 Key Formulas Covered:
📍 Stress Concentration Factor: $K_t = \frac{\text{Maximum Stress}}{\text{Nominal Stress}}$
📍 Torsional Deflection Equation: $\theta = \frac{TL}{JG}$
📍 Flange Coupling Hub Proportions: $D = 2d$, $L = 1.5d$
📍 Industrial Prime Cost = Material Cost + Labour Cost + Direct Tool Costs

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Видео Design of Machine Elements | WBSCTVESD DIPLOMA | ME | SEMESTER 6TH | SHORT ANSWER QUESTION | 2024 канала AIMTECH Academy