BSEN 3210

BSEN 3210.  Mechanical Power for Biosystems (3). Lec. 2, Lab 3. Prerequisites: ENGR 2010, MECH 2110. Corequisite: MATH 2650. Basic engineering analysis, synthesis, and design concepts applied to power sources, mobile equipment and machinery applications for agricultural, forestry and natural resource systems. Fall.

Required for all Biosystems Engineering students.

Textbook: Goehring, Stone, Smith, Turnquist. Off-road Vehicle Engineering Principles, ASAE Publishing.

Course Objectives: Gain an understanding of the fundamentals of off-road machinery performance and function. Review the fundamentals of engine thermodynamics, ideal engine cycles, and factors that influence deviation from ideal performance. Use theoretical analysis and engine simulation to understand how selection of engine components changes performance characteristics, and how performance relates to overall success of a machine design. Present fundamentals of traction and machine stability. Review performance measurement techniques used in evaluating machines and engines.

Topics Covered:
Engine Thermodynamics
    Ideal Otto and Diesel cycle definitions
    Efficiency calculations
    Pressure, temperature, internal
    energy relationships
Non-ideal Engine Thermodynamics
    Causes
    Efficiency and net work calculations
Engine Components, Design
    Crank, valve kinematics
    Unsteady air flow through valves and pipes
    Engine tuning
Fuels, Other Components
    Fuel characteristics and manufacture
    Turbochargers, cooling systems
    Ambient effects on performance
Traction Mechanics
    Soil strength characteristics
    Dimensionless ratios
    Variations due to tire size,             type, construction
2-D Analysis of Tractor Stability
    Motion equations
    Solutions for drawbar pull, net traction, rotational stability
    Suspension dynamics
    Lateral stability
    Determining center of gravity
Transmissions
    Types, simple design, gear ratios
    Comparison of efficiency, cost

Course contributes to the professional component by serving as one of the engineering science and engineering design courses.

Course contributes to the following program outcomes:  a) knowledge of math, science, and engineering, c) design a system component or process, e) identify, formulate, and solve engineering problems, h) gain a broad education necessary to understand the impact of engineering solutions in a global and societal context, j) knowledge of contemporary issues, and k) use the techniques, skills, and modern engineering tools necessary for engineering practice.