The research aimed to study parameters affecting the stress intensity and stress distribution as well as the deformation of run-flat tires for passenger cars using the Finite element method. Both experimental methods and finite element methodologies were employed in the research process. The results were obtained by comparing the strain values from the two methods to demonstrate the consistency of both methods. The differences in their strain values were shown in the range of 10-16% confirming the analyzing capability in this problem through the Finite element method. At the pre-processing step both procedures and methods were proven with SolidWorks simulation program together with experimentation. These consequences were incorporated to assist the design of run-flat tires. Parameters affecting the stress intensity and stress distribution were evaluated to understand the effects on deformation of the new designed run-flat tires. The reverse engineering process was thus applied in the research process by scanning with FARO P06-05 and creating solid modeling 3D models with Geomagic program for SolidWorks. These could assist in designing the reverse- engineered tire pan. Three components were additionally designed to support the ease in assembling or removing run flat tires from the pan. Run flat tires were finally designed for passenger cars typically the most common small cars. The weight of this car was limited at not more than 1800 kg and the thickness of the wheel pan was 17 inches. The analysis information assumed that the vehicles weight was distributed equally throughout all 4 wheels. The material used to make the run flat tires was a composite tire type that could withstand the pressure occurring from the weight of a passenger car. The results of the analysis demonstrated that the maximum stress on the run flat especially at the position where the run flat surface was in contact with the road was 30-45 MPa which depends on the location of contact with the road. Thus it affected the stress distribution on the wheel pan. The parameters obtained from the study affecting the stress distribution and deformation were accounted to be such types of materials made for run flat tires cross-sectional area and width of run flat tires.

The objectives of this research were 1) to study the design and experiment of materials for producing water hyacinth basketry templates from para rubber 2) to test the water hyacinth basketry templates from para rubber 3) to create a body of knowledge in the development of water hyacinth basketry templates. from rubber latex to the community The process of operation is to design the shape of a water hyacinth basketry to suit the use of the product first after that create a water hyacinth basketry template from para rubber by experimenting with a formula mixed with natural rubber latex and experiment with weaving vegetables. water hyacinths to find the best techniques and styles Results from research on the design of water hyacinth wicker templates from rubber latex and testing of water hyacinth wicker template designs from rubber latex. The aim is to invent materials to solve the problem of replacing the old wicker template. From the research it was found that the water hyacinth basketry model was made from rubber latex. There are two techniques for creating new templates: removable templates and removable templates. and non-removable templates Removable latex coated wicker template can produce many pieces easy to weave The wicker template part is coated with rubber latex. Non-removable or weave cover It can be used to weave as a furniture product with the properties that were discovered that it has a long service life. It is durable strong and durable. Flexibility to reduce shock during weaving. and can be a tool in the profession Can reduce the cost of producing water hyacinth handicrafts Model development part There is a design template for water hyacinth basketry which is a water hyacinth wicker product that has a shape that is exotic modern beautiful and useful according to the products unique characteristics and is a valuable work that can decorate the house beautifully.

The plastic outlet problem is a rigid inflexible material. When assembling with a metal outlet set then it is usually not completely homogeneous. When used The outlet burns out quite often. And the plastic itself is less heat resistant. This allows the plastic to melt burn easily and conform to the upgrade of technology capabilities in precision mold manufacturing. And high complexity The researcher has foreseen the factors in making Developing the design and manufacturing of rubber plug molds economic opportunities for Natural Rubber Applications Therefore came up with the idea to develop the design and material selection. And the factors that affect the production is the mold and the process of forming. To help entrepreneurs to exchange knowledge and study the knowledge from this research to continue in the application of natural rubber to increase future value. From the results and experiments it was found that the study of the method of creating a prototype compression molding kit by using rubber forming techniques can be applied and used by various components of forming rubber can be used to develop forming Rubber plug sockets are possible and this process can produce prototypes from natural rubber.

Most of the current containers that we put food are made of plastic or foam boxes. After the use is finished the container becomes rubbish and will greatly affect the environment. Due to slow degradation Plus informal disposal And higher consumption The use of natural products is in great demand. Because it is beautiful and natural-looking pleasing to consumers Therefore the basic processes forming patterns were studied by rubber product molding techniques. Determine the material to be molded into the sample container. Design and build a small molding set. Provide binders used for the stabilization of natural materials. Experiment for forming and the Conclusion of the experiment From the results of operations and experiments it was found that the study of the prototype extrusion set Using a rubber molding technique Can be applied by various elements The process of rubber molding can be used in the development of natural container molding and the process can produce prototype containers from natural materials. Under the suitable size of the mold the area of the mold is smaller than the mold plate area of the machine or the size of the mold area the area of no more than 60-70% of the mold holder plate.

This research aims to study and compare the test results obtained from the rolling resistance tester of automobile tires based on force method and torque method system. The four newly manufactured tires were sampled from two tire classes namely passenger car tires (Class C1) and light truck tires (Class C2). The tire rolling resistance test according to the international standard UN ECE Regulation No.117 was used as an important research process. The experimental work discovers that the rolling resistance of the same tire obtained from the test between the two different methods of testing machines was not more than 6 percent different. The testing results that used the torque method system calculation are high reliability because of the principle of calculation from the measurement value directly results in. and suitable for research testing. However the force method tester can perform more than a tire simultaneous test which is suitable for working in industrial applications where time is limited.