b) In four bar mechanism, if a tensile force, F is applied at the joining point of coupler and rocker, calculate the torque at the joining point of crank and ground. Assume that an angle of F is 30 degrees from x-axis, and theta_4 is 70 degrees. [2]
Added by Benjamin L.
Close
Step 1
Step 1: Calculate the torque at the joining point of crank and ground: T = W * sin(θ) Show more…
Show all steps
Your feedback will help us improve your experience
Manish Jain and 63 other Physics 101 Mechanics educators are ready to help you.
Ask a new question
Labs
Want to see this concept in action?
Explore this concept interactively to see how it behaves as you change inputs.
Key Concepts
Recommended Videos
The four-bar mechanism lies in a vertical plane and is controlled by crank $O A$ which rotates counterclockwise at a steady rate of 60 rev/min. Determine the torque $M$ which must be applied to the crank at $O$ when the crank angle $\theta=45^{\circ} .$ The uniform coupler $A B$ has a mass of $7 \mathrm{kg}$, and the masses of crank $O A$ and the output arm $B C$ may be neglected.
The four-bar mechanism operates in a horizontal plane. At the instant illustrated, $\theta=30^{\circ}$ and crank OA has a constant counterclockwise angular velocity of 3 rad/s. Determine the required magnitude of the couple $M$ necessary to drive the system at this instant. Member $B C D$ has a mass of $8 \mathrm{kg}$ with a radius of gyration of $450 \mathrm{mm}$ about point $C .$ The mass of crank $O A$ and connecting link $A B$ may be neglected for this analysis.
The torque (in N-m) exerted on the crankshaft of a two-stroke engine can be described as T = 10000 + 1000sin^2θ - 1200cos2θ, where θ is the crank angle as measured from the inner dead center position. Assuming the resisting torque to be constant, the power (in kW) developed by the engine at 100 rpm is _____.
Adi S.
Recommended Textbooks
University Physics with Modern Physics
Physics: Principles with Applications
Fundamentals of Physics
Transcript
18,000,000+
Students on Numerade
Trusted by students at 8,000+ universities
Watch the video solution with this free unlock.
EMAIL
PASSWORD