Semin, Aguk Zuhdi Muhammad Fathallah, I Made Ariana : Motions Study of a Single Cylinder High Speed Spark Ignition Linier Engine with Spring System as Return Cycle

Semin ST, MT.
Ir. Aguk Zuhdi Muhammad Fathallah M.Eng, Ph.D
Dr. I Made Ariana ST., MT.



Published in

American Journal of Applied Sciences

External link


Jurnal Internasional


Linear Engine, Motion Analysis, Spring System


A single cylinder two stroke spark ignition convent ional engine have been modified to linier engine with spring mechanism. Before develop the design of linear engine is necessary to analysis of motion. Although principle of combustion process in combust ion chamber is the same in fact the oscillation movement is different. Simulation technique has bee n adopted to study both linear and conventional engine. 3D engines model have been simulate of the motion. Due to simulate both engines, three different tools have been used. Solid works has bee n used to design, assembly and motion analysis of engine models. However, pressure dynamics have been simulating by GT-Power. Spread sheet has been used to optimize geometry of spring. Spring fo rce and friction force are including components of dynamic and gas dynamic models. Three results have been conducted such as comparison in basic motion (displacement, velocity and acceleration) be tween conventional and linear engine, effect spring design on motion of piston movement and effect fric tion of piston ring and journal bearing on the motion characteristics of linear engine. The simula tion shows clear different motion characteristics between conventional and linear engine. The effect of spring design on motion characteristics is very strong. The friction between ring piston with cylin der liner and journal bearing with rod influenced of piston movement. However, it need modified the desi gn of spring mechanism