On Structural Patterns of Mechanical Systems with Impacts with One and Two Degrees-of-Freedom

Table 1

The way connected and disconnected spring-impact combinations are generated (before elimination) for 𝑛=2.

	𝑖𝑠−𝑠 = 4: connected spring combinations	𝑖𝑠−𝑛 = 4: disconnected spring combinations
𝑖𝑧−𝑠 = 48: connected impact combinations	𝑖s𝑧−𝑠=𝑖𝑠−𝑠×𝑖𝑧−𝑠=4×48 = 192: connected spring-impact combinations	𝑖s𝑧−𝑠=𝑖𝑠−𝑛×𝑖𝑧−𝑠=4×48 = 192: connected spring-impact combinations
𝑖𝑧−𝑛 = 16: disconnected impact combinations	𝑖s𝑧−𝑠=𝑖𝑠−𝑠×𝑖𝑧−𝑛=4×16 = 64: connected spring-impact combinations	𝑖s𝑧−𝑛=𝑖𝑠−𝑛×𝑖𝑧−𝑛=4×16 = 64: disconnected spring-impact combinations