Investigation of Impact Properties of Wave Springs Designed for Additive Manufacturing / (Record no. 614840)
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| 000 -LEADER | |
|---|---|
| fixed length control field | 03191nam a22001577a 4500 |
| 082 ## - DEWEY DECIMAL CLASSIFICATION NUMBER | |
| Classification number | 670 |
| 100 ## - MAIN ENTRY--PERSONAL NAME | |
| Personal name | Ahmed, Faizan |
| 245 ## - TITLE STATEMENT | |
| Title | Investigation of Impact Properties of Wave Springs Designed for Additive Manufacturing / |
| Statement of responsibility, etc. | Faizan Ahmed |
| 264 ## - PRODUCTION, PUBLICATION, DISTRIBUTION, MANUFACTURE, AND COPYRIGHT NOTICE | |
| Place of production, publication, distribution, manufacture | Islamabad : |
| Name of producer, publisher, distributor, manufacturer | SMME- NUST; |
| Date of production, publication, distribution, manufacture, or copyright notice | 2025. |
| 300 ## - PHYSICAL DESCRIPTION | |
| Extent | 119p. |
| Other physical details | Soft Copy |
| Dimensions | 30cm |
| 500 ## - GENERAL NOTE | |
| General note | Innovation continues to transform various fields, including the design of springs. Initially<br/>helical springs were used as compression springs for most of the applications. However, the<br/>design innovation has led to the introduction of a new type of compression spring which is the<br/>wave spring. At the same time the advancements in manufacturing technologies are reshaping<br/>the production methods. Traditional manufacturing methods are gradually being replaced with<br/>additive manufacturing. Because AM has the ability to fabricate complex geometries with high<br/>precision and minimal material waste. These advantages make AM a key driver of innovation<br/>in modern design and engineering. Wave springs possess better mechanical properties as<br/>compared to helical springs, as highlighted by previous studies. But previous studies are limited<br/>to only compression analysis of wave springs at slow speeds. The behavior of this newly<br/>developed spring is unknown for sudden high speed impact loadings. This research involves<br/>the experimental and computational analysis of six different geometries of wave spring under<br/>the high speed loading conditions of 17mm/sec. The six geometries of wave springs are<br/>fabricated using FDM technology. PLA material was considered for the fabrication due to its<br/>availability and compatibility with the FDM. The other 2 materials including spring steel, and<br/>TPU (Thermoplastic Polyurethane) were used in computational modelling only. The results<br/>mainly showed that the material properties had a greater influence over the geometric<br/>parameters. PLA due to its brittle nature resulted in formation of local stresses that minimized<br/>the performance parameters of all geometries of wave springs. Spring steel having high<br/>elasticity and compressive strength showed better impact properties unlike PLA. TPU although<br/>elastic but moderate compressive strength was not able to show impact properties like spring<br/>steel, but due to its elasticity, it was a better choice over PLA. Each of the 6 geometries had<br/>different configurations that resulted in different local stress formations and thus different<br/>energy absorption, stiffness, and load-bearing capacity. To apply the concept of wave spring<br/>to real-engineering world, multiple wave spring designs were integrated in the car suspension<br/>system and analyzed on MSC Adams (Automated Dynamic Analysis of Mechanical Systems)<br/>for their energy absorption, stiffness, and maximum load bearing capacity. This analysis further<br/>validated the initial results and provided a gateway to the innovation in the car suspension<br/>system design and analysis. |
| 650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | MS Design and Manufacturing Engineering |
| 700 ## - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Supervisor : Dr. Muhammad Rizwan ul Haq |
| 856 ## - ELECTRONIC LOCATION AND ACCESS | |
| Uniform Resource Identifier | <a href="http://10.250.8.41:8080/xmlui/handle/123456789/54893">http://10.250.8.41:8080/xmlui/handle/123456789/54893</a> |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| Source of classification or shelving scheme | |
| Koha item type | Thesis |
| Withdrawn status | Permanent Location | Current Location | Shelving location | Date acquired | Full call number | Barcode | Koha item type |
|---|---|---|---|---|---|---|---|
| School of Mechanical & Manufacturing Engineering (SMME) | School of Mechanical & Manufacturing Engineering (SMME) | E-Books | 09/24/2025 | 670 | SMME-TH-1168 | Thesis |