EDSGN 100 Memo 2 - G5

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Pennsylvania State University *

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100

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Mechanical Engineering

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Jan 9, 2024

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1 Goodwill Keystone – EDSGN 100 Project Fall 2023 | Memo 2 Lead teammate: Gabriel Tenezaca Part 1: Preliminary Analysis of Screened Concepts Our team’s initial analyses of our screened concepts took heavy consideration into the advantages and benefits that would lead for a better outcome for Goodwill Keystone’s criteria. For each individual idea we split the screening into multiple parts focusing on different aspects such as how it would help the workload, training ground, and new employees. We also took into consideration whether the design would be able to simplify operations and help increase production efficiency. This analysis was important for our team because it gave us a good foundation to work on and develop more ideas, eventually leading to our decision to having two parts to our design, the conveyor part, and the hanger part. Multi-purpose hangar variation: When analysing and performing an assessment on my concept, I was focusing on the advantages in the time efficiency aspect, because my concept was a flexible and multi-purpose, then it would greatly improve the workload and simplify operations since there would be no need for all the trouble in certain situations, for example if the hanger struggles to fit through the holes. Manual hanging would be much easier if there was a hangar “mode” for these situations. As a group, we discussed whether the concept would lead to radical or incremental change, and we decided incremental because using this concept we could be able to branch out into more different ideas. Adjustable rack: The concept that I picked to develop to make hanging clothes more efficient was an adjustable rack. The current rack design can be too high depending on the worker's height leading to potential inefficiencies while hanging clothes. Since clothing is a large portion of Goodwill’s products, it is an issue that necessary to be addressed. Having an adjustable rack will allow the worker to put the rack at an optimal height for them which will allow them to hang clothes the most efficient way possible. If the rack is at a height that is unsuitable for the worker, it will lead to slower hanging time and can put them in uncomfortable positions that would potentially over time lead to minor injuries. Having an adjustable rack would be environmentally sustainable because it requires minimal adjustment to the original variation of the rack and will not waste any new material when modifying the racks to be adjustable. The material used to modify the racks can also be recyclable to prevent material from being put in landfills when the racks are no longer usable. It is also an economically sustainable option because it does not require much money to make these modifications. It can also teach the workers a new skill if Goodwill chooses to have the workers being the ones to make this modification. Overall, an adjustable rack would allow the workers to hang clothes more efficiently while reducing potential injury and remaining environmentally and economically sustainable. A multi-purpose hanger:

2 I came up with this idea when we were writing the how might we statement and one of them was to create a versatile way of hanging clothes. I think this idea can help the workers deal with several types of clothes in an easy and sufficient way. Difficulties can be minimized when dealing with heavy winter clothes, pants, slippery fabric, and varied sizes of clothes by using buttons that enhance features to simplify operations. Also, customers and workers can reuse the hanger for diverse types of clothes without throwing the hanger away since it can be used for almost every type of clothing. This product also will provide an opportunity for Goodwill's workers a training experience specialized for illustrations on how to make use of every feature that this hanger can provide. Part 2: Design Review Adjustable rack: After receiving feedback about my original design, it was brought to my attention that there could be an issue with the adjustable rack. It could be difficult to adjust the rack if the worker is not tall enough and they may not be able to reach the release lever to adjust the rack to their desired height. The main strength of the design was that it would make hanging clothes much faster and easier for the workers. To address the issue of inaccessibility of the rack adjustment, I will put the adjustment lever at a lower height, and I will put a bar that can be used to lower the rack instead of having to grab onto the top part of the rack. These adjustments will make the design accessible for all workers and will allow them to make the necessary adjustments without assistance overall increasing hanging efficiency. It was also brought to my attention that my design leaned more toward the issue of the “Z - rack” instead of the process of hanging clothes. Although it would have a positive effect on hanging clothes, there are more efficient options that have a greater impact on the process of hanging clothes. A muti-purpose hanger: Overall, the feedback was that the design is great but there are some thoughts that were pointed up. My friend mentioned that there should be a lacking mechanism for the size adjustment part so it would prevent it from accidentally stretching while working. Another suggestion was to consider adding small compartments where they can hang scarves, underclothes, and even accessories. Both suggestions can help improve the design and these modifications would further this design to accommodate various types of clothes and improve its functionality. As we continue to refine this design, stakeholders' needs will be met with this hanger. Multi-purpose hangar: To summarize the feedback I received, my relatives agreed with my concept and shared an agreement that this multi-purpose could be a crucial part to our final design. They told me that I should go more into depth with the different modes and its functionality where I could manipulate the shape, size, or re-arrange it to a more suitable design for the situation. Using all the feedback, I decided to research more about my concept and learned about different types of ways and benefits that different

3 designs could give the best benefits to the workers and companies. I will take all these aspects into heavy consideration when producing the final design. Part 3: Concept Selection When selecting the most impactful and efficient change to the process of hanging clothes we decided that there were four main important aspects of the design. These aspects were accessibility, ease of use, decrease in overall workload, and time efficiency. These aspects are important to make the process of changing clothes more efficient and easier for the workers. We compared our four options in a concept selection matrix where we focused on the aspects specified before. We weighted the aspects by order of importance and as a group ranked each concept on a scale of one to five. We were able to get a weighted score for each concept which allowed us to pick a concept that would make the most sense to move forward with. We decided to move forward with a combination of a magnetic conveyor belt that will rack the clothes automatically and a multipurpose hanger that can hang clothes of all distinct types. These two options were the best because they work together to make the overall process more efficient. The rack will allow the workers to only have to put a hanger on the clothes and put them on the conveyor belt which will make the overall process much faster and easier. The multipurpose hanger will allow the worker to be able to use one hanger for any type of clothing which will make hanging clothes simpler and faster. Part 4: Critical Questions for Testing - What should the maximum and minimum length of the hanger that can be stretched so it can accommodate different sizes of clothes? - What is the best material(s) to create a lightweight and cost-effective hanger that will be magnetic?

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4 References <Start the references section on a separate page. This is an example reference format. Do not just copy/paste internet URLs!!! > 1. Muriru, P.K. and Daewoo, R., “Prediction of the Heat Transfer Characteristics of a Multi-Flame Injector, ” Combustion and Flame , vol. 100, no. 2, pp. 123 – 135, 2002. 2. Peters, L., Johnson, M., and Davidson, K., “A Novel Approach to Four -Bar Synthesis, ” 10 th ASME Design Automation Conference , pp. 234-250, Pittsburgh, PA, 2001. 3. Swanson Inc., “Online User’s Manual for ANSYS 5.0 ,” http://www.ansys.com/ manual , accessed 29 March 2019. 4. Wen- Cheng, C., “Electric Bicycle , ” US Patent No. 5,368,122, November 29, 1994. 5. Zacharia, M. and Daudi, P.K., The Effect of Multi-materials on Conventional Finite Element Formulations, New York: Wiley and Sons, 2001.