Connecting rod is the intermediate link between the piston and the crank. And is responsible to transmit the push and pull from the piston pin to crank pin, thus converting the reciprocating motion of the piston to rotary motion of the crank. Generally connecting rods are manufactured using carbon steel and in recent days aluminium alloys are finding its application in connecting rod. In this w...

Free-piston engines are under investigation by a number of research groups worldwide due to their potential advantages in terms of fuel efficiency and engine emissions. Some prototypes have emerged, mainly aimed for vehicle propulsion, and have reported favourable performance compared to conventional technology. This paper describes the design of a modular compression ignition free-piston engin...

The piston-sensing algorithm proposed by Labeyrie (Lardière et al 2002 IAU Technical Workshop vol 266, p 608) for diluted interferometric arrays can be extended to redundant segmented apertures such as those of extremely large telescopes and periodic hypertelescopes (Labeyrie 1996 Astron. Astrophys. 118 (Suppl.) 517). We first show that his ‘dispersed image’ input data cube is the tri-dimension...

Analysis of reciprocating equipment piston rod leads to nonlinear elastic-plastic deformation analysis of rod with initial imperfection under axial dynamic load. In this paper a new and effective model and analytical formulations are presented to evaluate dynamic deformation and elastic-plastic stresses of reciprocating machine piston rod. This new method has capability to account for geometric...

Free-piston engines are under investigation by a number of research groups worldwide due to potential fuel efficiency and engine emissions advantages. The free-piston engine generator, in which a linear electric generator is fixed to the mover to produce electric power, has been proposed as an alternative prime mover for hybrid-electric vehicles. This paper investigates the performance of a spa...

moves up and down. These charged particles are momenThe streaming current detector (SCD) is an instrument used tarily immobilized on the surfaces of the piston and the for continuous characterization of colloidal surface charge. It meacylinder. As the fluid motion forces mobile counterions in sures the alternating current generated by mobile countering when the double layer past these immobile ...

This paper deals with an investigation of different control strategies for a series hybrid electric vehicle (SHEV). Another discussed issue is the application of a free-piston generator. By replacing a conventional combustion engine with a free-piston generator it is possible to increase the total efficiency of the system. The object of investigation is a 12-ton truck, mainly used in urban area...

Recent advances in technology on two fronts, 1) the fabrication of large-diameter pistons and cylinders with good geometry, and 2) the ability to measure the dimensions of these components with high accuracy, have allowed dead-weight testers at the National Institute of Standards and Technology (NIST) to generate pressures that approach total relative uncertainties previously obtained only by m...

The refrigeration and air conditioning industry shows much interest in environmentally-friendly natural refrigerants. One such refrigerant is R744, carbon dioxide. It is attractive because it is not toxic, not flammable, and is widely available as a byproduct of industrial processes. However, carbon dioxide (CO2) systems operate at much higher pressures than systems using HCFC, HFC, or HFC-blen...

We obtain analytical solutions for the perturbed shock paths induced by time-varying random motions of a piston moving inside an adiabatic tube of constant area. The variance of the shock location grows quadratically with time for early times and switches to linear growth for longer times. The analytical results are confirmed by stochastic numerical simulations, and deviations for large random ...