Ergonomic Considerations for Assembly and Disassembaly of Cng Tanks on a Vehicle
The use of natural gas as an automotive fuel is expanding worldwide, particularly so with the increasing price of petrol and diesel. Natural gas vehicle (NGV) is a relatively new and rapidly evolving technology in Malaysia. As of 2005, there were more than 12,000 NGVs and 38 refuelling stations a...
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| Format: | Thesis |
| Language: | English English |
| Published: |
2006
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| Subjects: | |
| Online Access: | http://psasir.upm.edu.my/id/eprint/6149/1/FK_2006_64.pdf |
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| Summary: | The use of natural gas as an automotive fuel is expanding worldwide, particularly so
with the increasing price of petrol and diesel. Natural gas vehicle (NGV) is a
relatively new and rapidly evolving technology in Malaysia. As of 2005, there were
more than 12,000 NGVs and 38 refuelling stations available in the country. However,
the use of natural gas as a vehicle fuel creates challenges in vehicle design. The
installation of compressed natural gas (CNG) cylinders into the vehicle requires an
analysis of the space availability, mounting system, design to assembly, disassembly
and maintenance, fasteners operations, visibility and labelling issues, therefore
creating a new impact on the vehicle design. In this study, a petrol fuelled sedan type
passenger car has been chosen as a case study by its conversion to bi-fbelled and
mono-fuelled NGV. A total of four designs have been introduced: locating the CNG cylinders in the (i) luggage compartment and (ii) beneath the vehicle floor pan while
retaining the original platform, also (iii) placing the cylinder under the backbone and
(iv) rear platform by raising the floor. Ergonomics design guidelines and industrial
NGV standards have played an important role in the design and design assessment.
Many characteristics have been considered and studied to integrate the human into
the system. These included equipment accessibility, workspace and operations, and
physical accommodation. Virtual reality (VR), which enables the modelling of
systems and components, was used for the simulation of assembly, disassembly,
maintenance, reachability and visibility operations, and subsequently to evaluate and
improve the designs. Concurrently, postural analyses were conducted using Rapid
Upper Limb Assessment (RULA) technique. The virtual human contained within the
VR software was used to perform the physical work, in an effort to reduce the risk of
musculoskeletal disorder. |
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