title: Determining the characteristics of a passive linear electro-magnetic damper for a lightweight vehicle.

authors: Fow, Alista John

abstract: Previous research has shown that passive electromagnetic damping could be feasible for automotive applications, but there would be a severe weight penalty, particularly in light weight vehicles. With modern advances in permanent magnets the feasibility of passive electromagnetic dampers is re-examined. A model of a permanent magnet and coil system is developed and validated in small scale. This magnet model is used to model a dynamic damper system which is again tested. Finally this dynamic model is then scaled up to a two degree of freedom system to determine the damping for a quarter car model. Two damper designs are created. While both dampers could achieve practical real-world damping levels, but both are at least a factor heavier than a comparable commercial hydraulic damper. Keywords: Electromagnetic, magnetic, EM, damping.

text: Determining the characteristics of a passive linear electro-magnetic damper for a lightweight vehicle. Previous research has shown that passive electromagnetic damping could be feasible for automotive applications, but there would be a severe weight penalty, particularly in light weight vehicles. With modern advances in permanent magnets the feasibility of passive electromagnetic dampers is re-examined. A model of a permanent magnet and coil system is developed and validated in small scale. This magnet model is used to model a dynamic damper system which is again tested. Finally this dynamic model is then scaled up to a two degree of freedom system to determine the damping for a quarter car model. Two damper designs are created. While both dampers could achieve practical real-world damping levels, but both are at least a factor heavier than a comparable commercial hydraulic damper. Keywords: Electromagnetic, magnetic, EM, damping.

year: 2016-04-22

title: "Twenty percent free!": So how much does the original bar weigh?

authors: Hāwera, Ngārewa

subjects: activity programs in education

abstract: Ngarewa Hawera and Merilyn Taylor describe a rich task based on a real world situation that stimulated a great deal of mathematical reasoning. Their research on how students attempted the task is most revealing.

text: "Twenty percent free!": So how much does the original bar weigh? Ngarewa Hawera and Merilyn Taylor describe a rich task based on a real world situation that stimulated a great deal of mathematical reasoning. Their research on how students attempted the task is most revealing.

year: 2011

title: The Proceedings of the National Māori Graduates of Psychology Symposium 2002: Making a difference

authors: Nikora, Linda Waimarie

subjects: Maori

abstract: This is the full proceedings of the National Māori Graduates of Psychology Symposium 2002. The proceeding include the following themes: Kia matāra - negotiating the challenges in Māori development, kia mau – recruitment and retention, Tuhia mai, whiua atu – research and methodology, tinia mai – interventions and treatment, taitaia i te ahi manuka – pride upon the skin.

text: The Proceedings of the National Māori Graduates of Psychology Symposium 2002: Making a difference This is the full proceedings of the National Māori Graduates of Psychology Symposium 2002. The proceeding include the following themes: Kia matāra - negotiating the challenges in Māori development, kia mau – recruitment and retention, Tuhia mai, whiua atu – research and methodology, tinia mai – interventions and treatment, taitaia i te ahi manuka – pride upon the skin.

year: 2003