+1-415-670-9189
info@expertsmind.com
Calculation of the joint forces at the joint
Course:- Mechanical Engineering
Reference No.:- EM13732633




Assignment Help
Expertsmind Rated 4.9 / 5 based on 47215 reviews.
Review Site
Assignment Help >> Mechanical Engineering

As per the requirement of the assignment we have to make a survey from the market about the competitive designs of small engine and about the current standards of designing of small engine and also the cost for making it. After completing the survey we have to design a small engine for a lawn mower.

This design mainly will be focused on the following key factors like-

• The design will be for a 4-stroke engine.
• Type of joint forces acting on the engine.
• Type of shaking / vibration forces acting on the engine components.
• All the details about the bore, crank length, stroke, and the connecting rod.

Some description about the engine: -

- Internal combustion engine (IC engine) is a mechanical device that use controlled explosion of air fuel (petrol, diesel, gasoline etc.) mixtures in order to produce power for the movement of the components and hence the movement of wheels.

- In a reciprocating engine (to and fro type engine) air fuel mixture explodes and forces the connecting piston to move up and down in a cylinder.

- The motion of piston inside the cylinder is transmitted to the crankshaft which ultimately transmits the same to the wheels via connecting rod.

- Firing order of a engine is the sequence of the strokes in function.

2. Calculation of joint forces with the variation of crank angle

1. Calculation of the joint forces at the joint of connecting rod and the crank shaft: -

Fc = force on the connecting rod

As by equating the horizontal components of the forces:

F x  cos β = F

Fc =  

As per the question, in intake process.     Lie between = 0-180degree

By this we have the value of Fc  is (F to -F)

Answered:-

Verified Expert


Preview Container content

The requirement of the assignment is to design a small engine for a lawn mower and the engine may of any type therefore I am choosing a 4-stroke internal combustion engine.
This assignment needs to be focused on the design of a small engine for a lawn mower after surveying from the market as this engine will be a reciprocating engine (to and fro type engine). This engine will be consisting of basically its working strokes and power system of the engine which will needed to be considered during its design.

In a suction stroke the piston inside the cylinder moves from the top dead centre to bottom dead centre and creates the suction inside the cylinder, due to the suction it sucks the air from the environment and taken in the cylinder. The air inside the cylinder is at very low pressure.




Put your comment
 
Minimize


Ask Question & Get Answers from Experts
Browse some more (Mechanical Engineering) Materials
Cooling/Dehumidification of an air stream, A 1000 m3/minute air stream at atmospheric pressure is at a temperature of 82.2oC and a humidity of 60%. We want to cool the air +
The first element is to conduct research into the geometry of a typical motorcycle suspension and specify a typical wheel diameter and sprung mass - Your design should clear
A particle P moves so that its position vector r satisfies the differential equation r·= c ? r,- where c is a constant vector. Show that P moves with constant speed on a circu
Air flowing through a tube of 75-mm diameter passes over a 150-mm-long roughened section that is constructed from naphthalene having the properties -4 flow rate and the aver
Two points on a stress-strain curve for a material are σ = 278 MPa at ε = 0.08 and σ = 322 MPa at ε = 0.16. A. Find K and n in the power-law approximation and predict σ at ε =
Draw a simple schematic diagram of the heat exchanger you would design, showing the hot and cold gas streams. Explain with the aid of T-s diagrams, why a counterflow heat ex
A piston-cylinder assembly contains 2 lb of water initially at 100 psi and 400 F. The water undergoes two processes in a series, first a constant pressure process and then a c
Design value for the molded friction material and steel disks to be used 0.06 and pressure max=1400kpa. Determine appropriate values for the disk inside dimmeter, the total