จำนวน Repository ( 266 )
การออกแบบตัวควบคุมพีไอดีอย่างเหมาะสมสำหรับระบบควบคุมความเร็วของมอเตอร์ไฟฟ้ากระแสตรงแบบไร้แปรงถ่านกับการหาค่าเหมาะที่สุดแบบมีเงื่อนไขในการเฝ้าติดตามอินพุตและการคุมค่าโหลดด้วยการค้นหาแบบนกกาเหว่า
Metaheuristic optimization approach has become the new framework for control synthesis. The main purposed of the control design are input (command) tracking and load (disturbance) regulating. This research proposes an optimal proportional-derivative (PID) controller design for the brushless dc (BLDC) motor speed control system with input tracking and load regulating constrained optimization by using the cuckoo search (CuS) one of the most efficient population-based metaheuristic optimization techniques. The sum-squared error between population-based metaheuristic optimization techniques. The sum-squared error between the referent input and the controlled output is set as the objective function to be minimized. The rise time the maximum overshoot settling time and steady-state error are set as inequality constraints for tracking purpose while the regulating time and the maximum overshoot of load regulation are set as inequality constraints for regulating purpose. Results obtained by the CuS will be compared with those obtained by the particle swarm optimization (PSO) and genetic algorithm (GA). From simulation results it was found that the parameters of CuS were optimal than both PSO and GA for BLDC motor speed control system satisfying the preset input tracking and load regulating constraints. In addition the simulation results are confirmed by the experimental ones from the BLDC motor speed control system developed in the laboratory.
การออกแบบรูปทรงแม่แบบเครื่องจักสานผักตบชวาสู่ผลิตภัณฑ์สร้างสรรค์แนวคิดเอกลักษณ์ท้องถิ่น
The objective of this study 1) To study the shape of the template from the process of making basketry 2) To design a template hyacinth wicker products creative products 3) To test the woven pattern of water hyacinth wicker 4) To create a unique product that is more valuable to the local wisdom and value. Consumerism toward the development of water hyacinth wicker patterns. By specifying a sample group of 57 people. The tools used in the research consisted of the satisfaction questionnaire on the template pattern water hyacinth weave basketry to local creative concept product. The results of the design of the water hyacinth wicker pattern design to the product of local identity concept found that the design shape can be a shape that has a concept as a creative product. Form 1 wicker-shaped pattern template from water hyacinth leaves The product is a chair with an average of 4.58 Form 2 template oval shaped wicker basket shape. The product was a basket of legs with an average of 4.48 Form 3 basket shaped shape from the bowl shape the product received the basket has a value of 4.22. All 3 forms that can be developed in the form of products that can satisfy level most satisfactory shape is the molds for Basketry 1. The product is a chair that is beautiful the proportion of products is suitable for use and strong products are local and creative in the process of water hyacinth wicker requires a template for forming. The original material used to make the wicker template is plywood or foam material. During the study phase the researcher invented the material for making water hyacinth woven basket template using rubber water mixed with plastic watercolor foamed foam templates are used for easy handling and longer durability.
โครงการออกแบบสนามฟุตบอลแห่งชาติ
Football is a sport that has been the most popular for many years. There are many different levels of competition and there is a tendency to develop more globally At present Thailand has a growing number of professional footballers Having traveled to play more professional football in foreign countries The world ranking of the Thai national team is likely to improve in the future The side cannot support in the future The Football Association of Thailand under the Royal Patronage of Thailand has a plan to build a Thai national football stadium To meet FIFA standards for the development of football to support future competition Therefore a study was conducted to design a 60000 seat football stadium project located at Bang Sue District Bangkok To promote the development of football as a center of activity collecting displaying information about football history Is a learning area Create a unique tourism promotion
โครงการการออกแบบและพัฒนาบรรจุภัณฑ์สำหรับผลิตภัณฑ์อโรม่า
This thesis is intended to design and develop packaging for aromatherapy products.The problems found in the area and observation are that the original packaging is made of plastic. Which plastics are materials that are not friendly to nature and are expensive Packaging is not unique. Can not separate the smell of each product smell. Because using all the same graphic packaging all smells And the graphics do not attract enough attention from consumers There is no floor to display products that are suitable and proportional.Is a major cause that requires the design and development of the structure and graphics on the packaging and the disply. The results of the research concluded that The packaging structure design has the highest level of satisfaction among the 3 experts.With an average of 4.58. The graphics on the packaging have the highest level of satisfaction among the 3 experts. With an average of 4.74. And the display has a high level of satisfaction among experts. With the average value of 4 and the satisfaction in the consumer packaging is the highest level With an average of 4.05. And the satisfaction in the consumer packaging is at the highest level With an average of 4.05 and consumers are satisfied with the most fragrant pillow packaging With the highest level of satisfaction with an average of 4.17. Followed by a large pack of soap With the highest level of satisfaction with an average of 4.12 and the third being small soap packaging With the highest level of satisfaction with an average of 4.12. The display has the highest level of consumer satisfaction at an average of 4.06
การออกแบบบรรจุภัณฑ์สำหรับอาหารสัตว์เลี้ยงฟันแทะ
This thesis is intended to design of packaging for rodent food. The problems found in the area and observation are that the original packaging is made of plastic. Which plastics are materials that are not friendly to nature and are expensive Packaging is not unique. Cannot separate the type of each product food. Because using all the same graphic packaging and the graphics do not attract enough attention from consumers There is no floor to display products that are suitable and proportional. Is a major cause that requires the design and development of the structure and graphics on the packaging and the display. The results of the research concluded that The packaging structure design has the highest level of satisfaction among the 3 experts. With an average of 4.56. The graphics on the packaging have the highest level of satisfaction among the 3 experts. With an average of 4.56. And the display has a high level of satisfaction among experts. With the average value of 5 and the satisfaction in the consumer packaging is the highest level with an average of 4.06. And the satisfaction in the consumer packaging is at the highest level with an average of 4.17 and consumers are satisfied with the most packaging with the highest level of satisfaction with an average of 4.12. Followed by a small hamster food with the highest level of satisfaction with an average of 4.11 and the third being cookie packaging with the highest level of satisfaction with an average of 3.97. The display has the highest level of consumer satisfaction at an average of 4.06