| Proposed hydraulic mechanism for variable piston stroke in piston compressor |
| Paper ID : 1310-NICAME1402 |
| Authors: |
|
erfan vahedi *1, payam faramarzi2, Hekmat Rabbani3 1mechanical engineering, technical engineering faculty, razi university, kermanshah, Iran 2biosystem mechanical engineering, tehran university, Tehran, Iran 3Department of Biosystem Mechanics Engineering, Faculty of Agriculture, Razi University, Kermanshah, Iran |
| Abstract: |
| The storage life of fruits and vegetables depends on various factors such as physiology of fruits and vegetables, pre-harvest conditions, temperature, relative humidity, oxygen and carbon dioxide. Due to the ever-increasing expansion of the population, nowadays it is more important to meet the human food needs. Providing food in the growing society in different ways including; Increasing the area under cultivation and increasing the production efficiency, it is possible to use breeding methods and agricultural operations, which makes the acquisition of new agricultural knowledge and the optimal use of production inputs inevitable. Like hydraulic pumps, air compressors can be divided into positive displacement devices (in which a constant volume of air is sent with each revolution of the compressor shaft) and dynamic devices such as centrifugal or axial blowers. Most air compressors are positive displacement type. CATIA V5 R21 software and GENERATIVE STRUCTURAL ANALYSIS section are used in this section. The amount of input force is 200 kilonewtons which enters the piston. In this mechanism, the number of components is 18913, the number of nodes is 5208, and the number of degrees of freedom is 15624. The amount of force and stress applied in Cartesian coordinates is shown in Table 1. von Mises stress is shown in figure 4. As can be seen in Figure 4, the maximum von Mises stress is 0.5 MPa in the whole mechanism, which has a very high reliability factor (about 500) compared to the yield stress of steel. |
| Keywords: |
| Piston _ hydraulic jack _ compressor _ oil pressure |
| Status : Paper Accepted (Poster Presentation) |
