Physical Limits to Modularity

Architecture, specifically the definition of modules and their interconnections, is a central concern of engineering systems theory. The freedom to choose modules is often taken for granted as an essential design decision. However, physical phenomena intervene in many cases, with the result that 1)...

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Main Author: Whitney, Daniel E.
Format: Working Paper
Language:en_US
Published: Massachusetts Institute of Technology. Engineering Systems Division 2016
Online Access:http://hdl.handle.net/1721.1/102731
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author Whitney, Daniel E.
author_facet Whitney, Daniel E.
author_sort Whitney, Daniel E.
collection MIT
description Architecture, specifically the definition of modules and their interconnections, is a central concern of engineering systems theory. The freedom to choose modules is often taken for granted as an essential design decision. However, physical phenomena intervene in many cases, with the result that 1) designers do not have freedom to choose the modules, or 2) that they will prefer not to subdivide their system into as small units as is possible. A distinction that separates systems with module freedom from those without seems to be the absolute level of power needed to operate the system. VLSI electronics exemplify the former while mechanical items like jet engines are examples of the latter. It has even been argued that the modularity of VLSI should be extended to mechanical systems. This paper argues that there are fundamental reasons, that is, reasons based on natural phenomena, that keep mechanical systems from approaching the ideal modularity of VLSI. The argument is accompanied by examples.
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spelling mit-1721.1/1027312019-04-11T07:18:21Z Physical Limits to Modularity Whitney, Daniel E. Architecture, specifically the definition of modules and their interconnections, is a central concern of engineering systems theory. The freedom to choose modules is often taken for granted as an essential design decision. However, physical phenomena intervene in many cases, with the result that 1) designers do not have freedom to choose the modules, or 2) that they will prefer not to subdivide their system into as small units as is possible. A distinction that separates systems with module freedom from those without seems to be the absolute level of power needed to operate the system. VLSI electronics exemplify the former while mechanical items like jet engines are examples of the latter. It has even been argued that the modularity of VLSI should be extended to mechanical systems. This paper argues that there are fundamental reasons, that is, reasons based on natural phenomena, that keep mechanical systems from approaching the ideal modularity of VLSI. The argument is accompanied by examples. 2016-05-31T18:57:31Z 2016-05-31T18:57:31Z 2002-05 Working Paper http://hdl.handle.net/1721.1/102731 en_US ESD Working Papers;ESD-WP-2003-01.03-ESD Internal Symposium application/pdf Massachusetts Institute of Technology. Engineering Systems Division
spellingShingle Whitney, Daniel E.
Physical Limits to Modularity
title Physical Limits to Modularity
title_full Physical Limits to Modularity
title_fullStr Physical Limits to Modularity
title_full_unstemmed Physical Limits to Modularity
title_short Physical Limits to Modularity
title_sort physical limits to modularity
url http://hdl.handle.net/1721.1/102731
work_keys_str_mv AT whitneydaniele physicallimitstomodularity